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  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
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    <link:label id="lab_bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">8.875% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">8.875% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A8875PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_CHF_019c29a6-48ae-7d0a-ae5a-c577ac1a8350_verboseLabel_en-US" xlink:label="lab_currency_CHF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">CHF</link:label>
    <link:label id="lab_currency_CHF_label_en-US" xlink:label="lab_currency_CHF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Switzerland, Francs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_CHF" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_CHF"/>
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    <link:label id="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer_019c29a6-48ae-7c9c-ba41-5412f83ef1d2_terseLabel_en-US" xlink:label="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain from continuing involvement, cumulative to 31 December</link:label>
    <link:label id="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer_label_en-US" xlink:label="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) of derecognised financial assets at date of transfer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xlink:to="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage_019c29a6-49d1-7a7c-95d6-82207af492d5_terseLabel_en-US" xlink:label="lab_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets held for sale, percentage</link:label>
    <link:label id="lab_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage_label_en-US" xlink:label="lab_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Current Assets or Disposal Groups Classified as Held For Sale, Percentage</link:label>
    <link:label id="lab_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage_documentation_en-US" xlink:label="lab_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Current Assets or Disposal Groups Classified as Held For Sale, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage" xlink:href="bbplc-20251231.xsd#bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage" xlink:to="lab_bbplc_NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSalePercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_019c29a6-4931-7a15-a52f-963a9b1b8f3f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfContingentLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of contingent liabilities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfContingentLiabilitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfContingentLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of contingent liabilities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesLineItems"/>
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    <link:label id="lab_ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised_019c29a6-48ae-744d-b601-ad17620b5731_terseLabel_en-US" xlink:label="lab_ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unused tax credits for which no deferred tax asset recognised</link:label>
    <link:label id="lab_ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised_label_en-US" xlink:label="lab_ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unused tax credits for which no deferred tax asset recognised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnusedTaxCreditsForWhichNoDeferredTaxAssetRecognised"/>
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    <link:label id="lab_ifrs-full_WagesAndSalaries_019c29a6-48ae-7fdb-9fbc-900ba5bd1f4b_terseLabel_en-US" xlink:label="lab_ifrs-full_WagesAndSalaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Salaries</link:label>
    <link:label id="lab_ifrs-full_WagesAndSalaries_label_en-US" xlink:label="lab_ifrs-full_WagesAndSalaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Wages and salaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WagesAndSalaries" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WagesAndSalaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WagesAndSalaries" xlink:to="lab_ifrs-full_WagesAndSalaries" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_019c29a6-48ae-7a1b-b055-2d4871305a76_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests - proportion of ownership interests</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interests held by non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestsHeldByNoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_019c29a6-48ae-7a7c-9d7e-a0f7865ce2c7_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_label_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncome_019c29a6-49d1-7d79-b495-6d3e3243c374_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current year</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncome" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_019c29a6-49d1-7629-bba8-4cd650b3f689_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of amortisation periods for goodwill and intangible assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about intangible assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ChangesInOtherProvisions_019c29a6-49d1-7c92-b94d-de72f4dd2418_terseLabel_en-US" xlink:label="lab_ifrs-full_ChangesInOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net change in expected credit loss provision and other movements</link:label>
    <link:label id="lab_ifrs-full_ChangesInOtherProvisions_label_en-US" xlink:label="lab_ifrs-full_ChangesInOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in other provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInOtherProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInOtherProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ChangesInOtherProvisions" xlink:to="lab_ifrs-full_ChangesInOtherProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyDomain_019c29a6-48ae-7015-a949-2911892e4318_terseLabel_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [domain]</link:label>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyDomain_label_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:to="lab_ifrs-full_LevelsOfFairValueHierarchyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019c29a6-4828-7791-a1ae-a12305e5cbde_totalLabel_en-US" xlink:label="lab_bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Profit before Impairment</link:label>
    <link:label id="lab_bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (Loss) From Operating Activities Before Impairment Loss (Reversal Of Impairment Loss) Recognised In Profit Or Loss</link:label>
    <link:label id="lab_bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_documentation_en-US" xlink:label="lab_bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The profit (loss) from operating activities of the entity, before impairment loss (reversal of impairment loss) recognised in profit or loss.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="bbplc-20251231.xsd#bbplc_ProfitLossFromOperatingActivitiesBeforeImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
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    <link:label id="lab_ifrs-full_EliminationOfIntersegmentAmountsMember_019c29a6-4828-78f4-9252-3fe2049ba02e_terseLabel_en-US" xlink:label="lab_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Of which inter-segmental income/(expense)</link:label>
    <link:label id="lab_ifrs-full_EliminationOfIntersegmentAmountsMember_label_en-US" xlink:label="lab_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Elimination of intersegment amounts [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EliminationOfIntersegmentAmountsMember"/>
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    <link:label id="lab_ifrs-full_NetDefinedBenefitLiabilityAssetAxis_019c29a6-4798-78ce-a51a-8f995f2d4fcd_terseLabel_en-US" xlink:label="lab_ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset) [axis]</link:label>
    <link:label id="lab_ifrs-full_NetDefinedBenefitLiabilityAssetAxis_label_en-US" xlink:label="lab_ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset) [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDefinedBenefitLiabilityAssetAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xlink:to="lab_ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet_019c29a6-4930-726a-bec3-3d73b67f85f1_terseLabel_en-US" xlink:label="lab_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers into Level 3 of fair value hierarchy, assets (liabilities) net</link:label>
    <link:label id="lab_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet_label_en-US" xlink:label="lab_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers Into Level 3 Of Fair Value Hierarchy, Assets (Liabilities) Net</link:label>
    <link:label id="lab_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet_documentation_en-US" xlink:label="lab_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of transfers of assets less liabilities into Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:href="bbplc-20251231.xsd#bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:to="lab_bbplc_TransfersIntoLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-4798-7ec3-9f32-99315aaa80fe_terseLabel_en-US" xlink:label="lab_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">6.125% Perpetual Subordinated Contingent Convertible Securities (EUR1,500m)</link:label>
    <link:label id="lab_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">6.125% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">6.125% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A6.125PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory_019c29a6-4828-7e02-a2b5-72d62b2da7c3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets designated at fair value</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory_019c29a6-4828-759e-b48b-eacd1c55a759_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities designated at fair value</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial instruments designated at fair value through profit or loss [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsDesignatedAtFairValueThroughProfitOrLossExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember_019c29a6-48ae-76bc-bbc1-87dd12f6d4df_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Over six months but not more than one year</link:label>
    <link:label id="lab_ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than six months and not later than one year [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember" xlink:to="lab_ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SalesFairValueMeasurementAssets_019c29a6-4798-7a63-b138-fd0f644be0c5_negatedLabel_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Sales, fair value measurement, assets</link:label>
    <link:label id="lab_ifrs-full_SalesFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SalesFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SalesFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SalesFairValueMeasurementAssets" xlink:to="lab_ifrs-full_SalesFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities_019c29a6-48ae-743f-b8f3-4c544512772f_terseLabel_en-US" xlink:label="lab_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of fair value of scheme assets invested in liability driven investment strategies</link:label>
    <link:label id="lab_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities_label_en-US" xlink:label="lab_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Fair Value Of Scheme Assets Invested In Liabilities</link:label>
    <link:label id="lab_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities_documentation_en-US" xlink:label="lab_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of fair value of scheme assets invested in liability driven investment strategies.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities" xlink:to="lab_bbplc_PercentageOfFairValueOfSchemeAssetsInvestedInLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReposMember_019c29a6-4930-78b7-b010-d53af57d0aa1_terseLabel_en-US" xlink:label="lab_bbplc_ReposMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements</link:label>
    <link:label id="lab_bbplc_ReposMember_label_en-US" xlink:label="lab_bbplc_ReposMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repos [Member]</link:label>
    <link:label id="lab_bbplc_ReposMember_documentation_en-US" xlink:label="lab_bbplc_ReposMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Repos</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReposMember" xlink:href="bbplc-20251231.xsd#bbplc_ReposMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReposMember" xlink:to="lab_bbplc_ReposMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet_019c29a6-48ae-7881-866e-a3326367350b_terseLabel_en-US" xlink:label="lab_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchases, fair value measurement, assets (liabilities) net</link:label>
    <link:label id="lab_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet_label_en-US" xlink:label="lab_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchases, Fair Value Measurement, Assets (Liabilities) Net</link:label>
    <link:label id="lab_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet_documentation_en-US" xlink:label="lab_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase in the fair value measurement of assets and liabilities resulting from purchases of those assets and liabilities. [Refer: At fair value [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet" xlink:href="bbplc-20251231.xsd#bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet" xlink:to="lab_bbplc_PurchasesFairValueMeasurementAssetsLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-48ae-7e8e-9d5c-28422b406532_terseLabel_en-US" xlink:label="lab_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">8.300% Perpetual Subordinated Contingent Convertible Securities (SGD450m)</link:label>
    <link:label id="lab_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">8.300% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">8.300% Perpetual Subordinated Contingent Convertible Securities (SGD 450m)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A8300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FairValueMortgageLoansMember_019c29a6-48ae-798c-a122-20550cbb3ce8_terseLabel_en-US" xlink:label="lab_bbplc_FairValueMortgageLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mortgage Loans</link:label>
    <link:label id="lab_bbplc_FairValueMortgageLoansMember_label_en-US" xlink:label="lab_bbplc_FairValueMortgageLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Mortgage Loans [Member]</link:label>
    <link:label id="lab_bbplc_FairValueMortgageLoansMember_documentation_en-US" xlink:label="lab_bbplc_FairValueMortgageLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value Mortgage Loans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FairValueMortgageLoansMember" xlink:href="bbplc-20251231.xsd#bbplc_FairValueMortgageLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FairValueMortgageLoansMember" xlink:to="lab_bbplc_FairValueMortgageLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_019c29a6-4931-7441-acc8-e251185c349a_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net gains on financial instruments designated at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_019c29a6-4931-7bfd-806f-256d05d560d4_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial assets designated at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount_019c29a6-4931-7365-85ba-48d2217e2774_terseLabel_en-US" xlink:label="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">100bps decrease in terminal growth rate</link:label>
    <link:label id="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount_label_en-US" xlink:label="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sensitivity Analysis For Impairment, Reasonably Possible 100Bps Change In Terminal Growth Rate, Amount</link:label>
    <link:label id="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount_documentation_en-US" xlink:label="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sensitivity Analysis For Impairment, Reasonably Possible 100Bps Change In Terminal Growth Rate, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount" xlink:href="bbplc-20251231.xsd#bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount" xlink:to="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInTerminalGrowthRateAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_019c29a6-48ae-7772-afc9-5ef71cad4e3f_terseLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill and intangible assets</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_019c29a6-48ae-7a17-b2ea-bf98bbbb8a6a_periodStartLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Intangible assets and goodwill, beginning of period</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_019c29a6-48ae-73d6-936c-3801227de6dc_periodEndLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Intangible assets and goodwill, end of period</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_019c29a6-48ae-7cf1-8988-e940ad26db2f_totalLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Carrying value</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_IntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GovernmentAndCentralBankMember_019c29a6-4931-7413-9812-6643c21d6a79_terseLabel_en-US" xlink:label="lab_bbplc_GovernmentAndCentralBankMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Government and central bank</link:label>
    <link:label id="lab_bbplc_GovernmentAndCentralBankMember_label_en-US" xlink:label="lab_bbplc_GovernmentAndCentralBankMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Government And Central Bank [Member]</link:label>
    <link:label id="lab_bbplc_GovernmentAndCentralBankMember_documentation_en-US" xlink:label="lab_bbplc_GovernmentAndCentralBankMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the government and central bank industry.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GovernmentAndCentralBankMember" xlink:href="bbplc-20251231.xsd#bbplc_GovernmentAndCentralBankMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GovernmentAndCentralBankMember" xlink:to="lab_bbplc_GovernmentAndCentralBankMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract_019c29a6-48ae-7fa4-8b81-da92b9f2fd82_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of comprehensive income [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of comprehensive income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfComprehensiveIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_StatementOfComprehensiveIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ExchangeTradedDerivativesMember_019c29a6-4828-7992-990c-0f84f36ff370_terseLabel_en-US" xlink:label="lab_bbplc_ExchangeTradedDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exchange traded derivatives</link:label>
    <link:label id="lab_bbplc_ExchangeTradedDerivativesMember_label_en-US" xlink:label="lab_bbplc_ExchangeTradedDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exchange Traded Derivatives [Member]</link:label>
    <link:label id="lab_bbplc_ExchangeTradedDerivativesMember_documentation_en-US" xlink:label="lab_bbplc_ExchangeTradedDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">An exchange traded derivative is a financial contract that is listed and trades on a regulated exchange.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ExchangeTradedDerivativesMember" xlink:href="bbplc-20251231.xsd#bbplc_ExchangeTradedDerivativesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ExchangeTradedDerivativesMember" xlink:to="lab_bbplc_ExchangeTradedDerivativesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock_019c29a6-49d1-7888-8609-1aa0a8e25974_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition and Disposals of subsidiaries</link:label>
    <link:label id="lab_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Disposal Of Businesses And Discontinued Operations [Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The entire disclosure on the disposal of business and discontinued operations.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock" xlink:to="lab_bbplc_DisclosureOfDisposalOfBusinessesAndDiscontinuedOperationsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets_019c29a6-4828-74f4-ab39-a86f00929a1a_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivatives</link:label>
    <link:label id="lab_ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets" xlink:to="lab_ifrs-full_DerivativesAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable_019c29a6-48ae-78d8-ae0e-66c3c178c3a1_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net decrease in cash collateral and settlement balances</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable_019c29a6-48ae-712d-8daf-ae074fb7833f_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net decrease in cash collateral and settlement balances</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in trade accounts receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInTradeAccountReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OnerousContractsProvisionMember_019c29a6-4798-70ce-b877-62ecb7656a0d_terseLabel_en-US" xlink:label="lab_ifrs-full_OnerousContractsProvisionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Onerous contracts</link:label>
    <link:label id="lab_ifrs-full_OnerousContractsProvisionMember_label_en-US" xlink:label="lab_ifrs-full_OnerousContractsProvisionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Onerous contracts provision [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OnerousContractsProvisionMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OnerousContractsProvisionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OnerousContractsProvisionMember" xlink:to="lab_ifrs-full_OnerousContractsProvisionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OnBalanceSheetAbstract_019c29a6-48ae-73af-92dc-e81ed5024cc4_terseLabel_en-US" xlink:label="lab_bbplc_OnBalanceSheetAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">On-balance sheet, values</link:label>
    <link:label id="lab_bbplc_OnBalanceSheetAbstract_label_en-US" xlink:label="lab_bbplc_OnBalanceSheetAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">On-Balance Sheet [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OnBalanceSheetAbstract" xlink:href="bbplc-20251231.xsd#bbplc_OnBalanceSheetAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OnBalanceSheetAbstract" xlink:to="lab_bbplc_OnBalanceSheetAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory_019c29a6-49d1-7be8-b1c0-56bb24447cf8_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for interest income and expenses</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for interest income and expense [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForInterestIncomeAndExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfExpensesExplanatory_019c29a6-48ae-7de6-a694-f07b8dedafb8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfExpensesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Infrastructure, administration and general expenses</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfExpensesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfExpensesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of expenses [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfExpensesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfExpensesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfExpensesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfExpensesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments_019c29a6-4827-779f-86ab-a677044f3514_terseLabel_en-US" xlink:label="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Standby facilities, credit lines and other commitments</link:label>
    <link:label id="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments_label_en-US" xlink:label="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Standby Facilities, Credit Lines And Other Commitments</link:label>
    <link:label id="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments_documentation_en-US" xlink:label="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of standby facilities, credit lines and other commitments including forward starting reverse repurchase agreements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments" xlink:href="bbplc-20251231.xsd#bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments" xlink:to="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitments" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherNonQuotedAssetsMember_019c29a6-4828-7eec-8e49-a30607544d31_terseLabel_en-US" xlink:label="lab_bbplc_OtherNonQuotedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbplc_OtherNonQuotedAssetsMember_label_en-US" xlink:label="lab_bbplc_OtherNonQuotedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Non-Quoted Assets [Member]</link:label>
    <link:label id="lab_bbplc_OtherNonQuotedAssetsMember_documentation_en-US" xlink:label="lab_bbplc_OtherNonQuotedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other assets held predominantly non-quoted and not separately disclosed.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherNonQuotedAssetsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherNonQuotedAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherNonQuotedAssetsMember" xlink:to="lab_bbplc_OtherNonQuotedAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables_019c29a6-4828-73bd-bf56-f38bd93b4861_verboseLabel_en-US" xlink:label="lab_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Carrying value</link:label>
    <link:label id="lab_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables_label_en-US" xlink:label="lab_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible Assets And Goodwill, Sensitive To Changes In Key Variables</link:label>
    <link:label id="lab_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables_documentation_en-US" xlink:label="lab_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Intangible Assets And Goodwill, Sensitive To Changes In Key Variables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables" xlink:href="bbplc-20251231.xsd#bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables" xlink:to="lab_bbplc_IntangibleAssetsAndGoodwillSensitiveToChangesInKeyVariables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory_019c29a6-49d1-7611-a31a-c73e8a3300a9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of derivatives held for trading and risk management</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of risk management strategy related to hedge accounting [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory" xlink:to="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_019c29a6-4930-77ba-b88e-2bb8fe8ec5d0_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for provisions</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for provisions [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForProvisionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFinancialAssetsPercentage_019c29a6-4828-7fe9-9c49-212b3e463b1c_terseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets, percentage</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsPercentage_label_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Assets, Percentage</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsPercentage_documentation_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of financial assets that the entity does not separately disclose in the same statement or note, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFinancialAssetsPercentage" xlink:href="bbplc-20251231.xsd#bbplc_OtherFinancialAssetsPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFinancialAssetsPercentage" xlink:to="lab_bbplc_OtherFinancialAssetsPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BankAcceptanceAssetsMember_019c29a6-48ae-766d-b02f-8f234f25af70_terseLabel_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral and settlement balances</link:label>
    <link:label id="lab_bbplc_BankAcceptanceAssetsMember_label_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank Acceptance Assets [Member]</link:label>
    <link:label id="lab_bbplc_BankAcceptanceAssetsMember_documentation_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Bank Acceptance Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BankAcceptanceAssetsMember" xlink:href="bbplc-20251231.xsd#bbplc_BankAcceptanceAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BankAcceptanceAssetsMember" xlink:to="lab_bbplc_BankAcceptanceAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PrivateEquityInvestmentsMember_019c29a6-4798-7ed0-a33b-6c874c1190ef_terseLabel_en-US" xlink:label="lab_bbplc_PrivateEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Private equity investments</link:label>
    <link:label id="lab_bbplc_PrivateEquityInvestmentsMember_019c29a6-4798-7039-a8a3-aabc826de609_verboseLabel_en-US" xlink:label="lab_bbplc_PrivateEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Private equities</link:label>
    <link:label id="lab_bbplc_PrivateEquityInvestmentsMember_label_en-US" xlink:label="lab_bbplc_PrivateEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Private Equity Investments [Member]</link:label>
    <link:label id="lab_bbplc_PrivateEquityInvestmentsMember_documentation_en-US" xlink:label="lab_bbplc_PrivateEquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for private equity investments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PrivateEquityInvestmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_PrivateEquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PrivateEquityInvestmentsMember" xlink:to="lab_bbplc_PrivateEquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_019c29a6-4828-748d-b817-6919abac0a0a_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A495FixedRateSubordinatedNotesDue2047Member_019c29a6-49d1-74cb-bf22-805f05376224_terseLabel_en-US" xlink:label="lab_bbplc_A495FixedRateSubordinatedNotesDue2047Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">4.95% Fixed Rate Subordinated Notes (USD 1,250m)</link:label>
    <link:label id="lab_bbplc_A495FixedRateSubordinatedNotesDue2047Member_label_en-US" xlink:label="lab_bbplc_A495FixedRateSubordinatedNotesDue2047Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">4.95% Fixed Rate Subordinated Notes, Due 2047 [Member]</link:label>
    <link:label id="lab_bbplc_A495FixedRateSubordinatedNotesDue2047Member_documentation_en-US" xlink:label="lab_bbplc_A495FixedRateSubordinatedNotesDue2047Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 4.95% Subordinated Notes, maturing in 2047 and denominated in United States of America, Dollars currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A495FixedRateSubordinatedNotesDue2047Member" xlink:href="bbplc-20251231.xsd#bbplc_A495FixedRateSubordinatedNotesDue2047Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A495FixedRateSubordinatedNotesDue2047Member" xlink:to="lab_bbplc_A495FixedRateSubordinatedNotesDue2047Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncome_019c29a6-49d1-706d-84fd-875f90be6aac_totalLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total comprehensive income for the year</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncome" xlink:to="lab_ifrs-full_ComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember_019c29a6-4828-7ccc-b41b-725344f18364_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">11.35% to 100%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Eleven Point Three Five To One Hundred Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale and retail lending with a default grade betweeen 20 and 22. A probability of default between 11.35% and 100%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultElevenPointThreeFiveToOneHundredPercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability_019c29a6-48ae-7bef-b2ed-136139770d9b_terseLabel_en-US" xlink:label="lab_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income and reserves</link:label>
    <link:label id="lab_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability_label_en-US" xlink:label="lab_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Relating To Components Of Other Comprehensive Income, Deferred Tax Asset (Liability)</link:label>
    <link:label id="lab_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability_documentation_en-US" xlink:label="lab_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of deferred iasset (liabiltity) relating to amounts recognised in other comprehensive income and reserves. [Refer: Other comprehensive income]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability" xlink:href="bbplc-20251231.xsd#bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability" xlink:to="lab_bbplc_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeDeferredTaxAssetLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_019c29a6-4931-7d7e-a534-0832cfefbbfe_verboseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of balance sheet reconciliation</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of net defined benefit liability (asset) [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition_019c29a6-4828-7f58-adc0-25cdbb7018d4_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Net amounts reported on the balance sheet</link:label>
    <link:label id="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition_label_en-US" xlink:label="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:to="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysUSConsumerBankMember_019c29a6-49d1-790a-a26a-4dd819d1f49b_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysUSConsumerBankMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays US Consumer Bank</link:label>
    <link:label id="lab_bbplc_BarclaysUSConsumerBankMember_label_en-US" xlink:label="lab_bbplc_BarclaysUSConsumerBankMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays US Consumer Bank [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysUSConsumerBankMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysUSConsumerBankMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays US Consumer Bank</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysUSConsumerBankMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysUSConsumerBankMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysUSConsumerBankMember" xlink:to="lab_bbplc_BarclaysUSConsumerBankMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaximumExposureToLossFromContinuingInvolvement_019c29a6-49d1-7e9d-bc21-03895b8d6251_terseLabel_en-US" xlink:label="lab_ifrs-full_MaximumExposureToLossFromContinuingInvolvement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum exposure to loss</link:label>
    <link:label id="lab_ifrs-full_MaximumExposureToLossFromContinuingInvolvement_label_en-US" xlink:label="lab_ifrs-full_MaximumExposureToLossFromContinuingInvolvement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum exposure to loss from continuing involvement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaximumExposureToLossFromContinuingInvolvement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaximumExposureToLossFromContinuingInvolvement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaximumExposureToLossFromContinuingInvolvement" xlink:to="lab_ifrs-full_MaximumExposureToLossFromContinuingInvolvement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems_019c29a6-4931-7715-b6c6-0d3e5a89157f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transferred financial assets that are not derecognised in their entirety [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transferred financial assets that are not derecognised in their entirety [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_019c29a6-49d1-75e5-97b3-f6488fea3fb9_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash settled</link:label>
    <link:label id="lab_ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_label_en-US" xlink:label="lab_ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense from cash-settled share-based payment transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:to="lab_ifrs-full_ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_019c29a6-48ae-79e2-b02d-5ddd7044f54e_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other cash flows associated with investing activities</link:label>
    <link:label id="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other inflows (outflows) of cash, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContractAssets_019c29a6-48ae-7571-9a51-5bb8aa9e31d4_terseLabel_en-US" xlink:label="lab_ifrs-full_ContractAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract assets</link:label>
    <link:label id="lab_ifrs-full_ContractAssets_label_en-US" xlink:label="lab_ifrs-full_ContractAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContractAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContractAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContractAssets" xlink:to="lab_ifrs-full_ContractAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherFinancialLiabilities_019c29a6-4931-7f38-95a6-d3c2d6296803_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial liabilities</link:label>
    <link:label id="lab_ifrs-full_OtherFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_OtherFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherFinancialLiabilities" xlink:to="lab_ifrs-full_OtherFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_019c29a6-49d1-7523-9e7b-4ecb61157148_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for income taxes</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for income tax [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ParentCompanyMember_019c29a6-48ae-79fe-81b2-76edcc3dd983_terseLabel_en-US" xlink:label="lab_srt_ParentCompanyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank PLC</link:label>
    <link:label id="lab_srt_ParentCompanyMember_019c29a6-48ae-714f-b179-ca569aa12f05_verboseLabel_en-US" xlink:label="lab_srt_ParentCompanyMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">UK Tax Group</link:label>
    <link:label id="lab_srt_ParentCompanyMember_label_en-US" xlink:label="lab_srt_ParentCompanyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Parent Company [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ParentCompanyMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ParentCompanyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ParentCompanyMember" xlink:to="lab_srt_ParentCompanyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInStructuralCurrencyExposuresNetOfHedgingInstruments_019c29a6-4828-7b22-9147-855e77c5dd9b_negatedLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInStructuralCurrencyExposuresNetOfHedgingInstruments" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Decrease in structural currency exposures, net of hedging instruments</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInStructuralCurrencyExposuresNetOfHedgingInstruments_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInStructuralCurrencyExposuresNetOfHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Structural Currency Exposures, Net Of Hedging Instruments</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInStructuralCurrencyExposuresNetOfHedgingInstruments_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInStructuralCurrencyExposuresNetOfHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase (decrease) in structural currency exposures, net of hedging instruments during the period.</link:label>
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    <link:label id="lab_bbplc_Section75ContributionPlanMember_019c29a6-49d1-7183-af85-5e9215371eae_terseLabel_en-US" xlink:label="lab_bbplc_Section75ContributionPlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Section 75 Contribution Plan</link:label>
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    <link:label id="lab_bbplc_IPathSeriesBSP500VIXShortTermFuturesTMETNsMember_019c29a6-4930-7e44-b01d-0e889e0ef41e_terseLabel_en-US" xlink:label="lab_bbplc_IPathSeriesBSP500VIXShortTermFuturesTMETNsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B S&amp;P 500 VIX Short-Term FuturesTM&#160;ETNs</link:label>
    <link:label id="lab_bbplc_IPathSeriesBSP500VIXShortTermFuturesTMETNsMember_label_en-US" xlink:label="lab_bbplc_IPathSeriesBSP500VIXShortTermFuturesTMETNsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B S&amp;P 500 VIX Short-Term FuturesTM&#160;ETNs [Member]</link:label>
    <link:label id="lab_bbplc_IPathSeriesBSP500VIXShortTermFuturesTMETNsMember_documentation_en-US" xlink:label="lab_bbplc_IPathSeriesBSP500VIXShortTermFuturesTMETNsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B S&amp;P 500 VIX Short-Term FuturesTM&#160;ETNs</link:label>
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    <link:label id="lab_bbplc_DepositsAtAmortisedCostUndiscountedCashFlows_label_en-US" xlink:label="lab_bbplc_DepositsAtAmortisedCostUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits At Amortised Cost, Undiscounted Cash Flows</link:label>
    <link:label id="lab_bbplc_DepositsAtAmortisedCostUndiscountedCashFlows_documentation_en-US" xlink:label="lab_bbplc_DepositsAtAmortisedCostUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to deposits from banks.</link:label>
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    <link:label id="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_label_en-US" xlink:label="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements</link:label>
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    <link:label id="lab_ifrs-full_QualifyingInsurancePoliciesAmountContributedToFairValueOfPlanAssets_019c29a6-4828-7fd9-8f3a-8f51c358690d_terseLabel_en-US" xlink:label="lab_ifrs-full_QualifyingInsurancePoliciesAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Longevity reinsurance contracts</link:label>
    <link:label id="lab_ifrs-full_QualifyingInsurancePoliciesAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_QualifyingInsurancePoliciesAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Qualifying insurance policies, amount contributed to fair value of plan assets</link:label>
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    <link:label id="lab_ifrs-full_AssetsThatEntityContinuesToRecogniseToExtentOfContinuingInvolvement_label_en-US" xlink:label="lab_ifrs-full_AssetsThatEntityContinuesToRecogniseToExtentOfContinuingInvolvement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets that entity continues to recognise to extent of continuing involvement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsThatEntityContinuesToRecogniseToExtentOfContinuingInvolvement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsThatEntityContinuesToRecogniseToExtentOfContinuingInvolvement"/>
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    <link:label id="lab_ifrs-full_ClassesOfOtherProvisionsDomain_019c29a6-4798-73b5-9bea-9c3426c3c40c_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfOtherProvisionsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of other provisions [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfOtherProvisionsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfOtherProvisionsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of other provisions [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfOtherProvisionsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfOtherProvisionsDomain"/>
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    <link:label id="lab_bbplc_BondsFixedGovernmentMember_019c29a6-49d1-7f79-a74e-5a63965c51f1_terseLabel_en-US" xlink:label="lab_bbplc_BondsFixedGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bonds - fixed government</link:label>
    <link:label id="lab_bbplc_BondsFixedGovernmentMember_label_en-US" xlink:label="lab_bbplc_BondsFixedGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bonds Fixed Government [Member]</link:label>
    <link:label id="lab_bbplc_BondsFixedGovernmentMember_documentation_en-US" xlink:label="lab_bbplc_BondsFixedGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Bonds - fixed government debt instrument.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BondsFixedGovernmentMember" xlink:href="bbplc-20251231.xsd#bbplc_BondsFixedGovernmentMember"/>
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    <link:label id="lab_ifrs-full_DecreaseThroughDerecognitionExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-48ae-7a39-99df-7b5b12fec6e4_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DecreaseThroughDerecognitionExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Limit management and final repayments</link:label>
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    <link:label id="lab_bbplc_ManagementAdjustmentsMember_019c29a6-4930-7fdd-9056-64bec040de44_terseLabel_en-US" xlink:label="lab_bbplc_ManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Management adjustments</link:label>
    <link:label id="lab_bbplc_ManagementAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_ManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Management Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_ManagementAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_ManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Management Adjustments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ManagementAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_ManagementAdjustmentsMember"/>
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    <link:label id="lab_ifrs-full_ProbabilityOfDefaultAxis_019c29a6-48ae-7b75-b959-f9190cade171_terseLabel_en-US" xlink:label="lab_ifrs-full_ProbabilityOfDefaultAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Probability of default [axis]</link:label>
    <link:label id="lab_ifrs-full_ProbabilityOfDefaultAxis_label_en-US" xlink:label="lab_ifrs-full_ProbabilityOfDefaultAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability of default [axis]</link:label>
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    <link:label id="lab_bbplc_TypeOfUKRFObligationDomain_019c29a6-4798-7d99-980e-e715dd1d2afd_terseLabel_en-US" xlink:label="lab_bbplc_TypeOfUKRFObligationDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Type Of UKRF Obligation [Domain]</link:label>
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    <link:label id="lab_bbplc_TypeOfUKRFObligationDomain_documentation_en-US" xlink:label="lab_bbplc_TypeOfUKRFObligationDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Type Of UKRF Obligation [Domain]</link:label>
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    <link:label id="lab_bbplc_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssetsLiabilitiesNet_019c29a6-49d1-75ed-b5ce-f5875a3baa8a_terseLabel_en-US" xlink:label="lab_bbplc_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss, fair value measurement, assets (liabilities) net</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssetsLiabilitiesNet" xlink:href="bbplc-20251231.xsd#bbplc_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssetsLiabilitiesNet"/>
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    <link:label id="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_019c29a6-48ae-7286-ac24-559f322455eb_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Netting and set-off</link:label>
    <link:label id="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_019c29a6-48ae-7d91-a42c-2b677a400673_negatedLabel_en-US" xlink:label="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Financial instruments</link:label>
    <link:label id="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:to="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CreditCardsRetailMember_019c29a6-48ae-7e25-a386-9b89bb97b8bb_verboseLabel_en-US" xlink:label="lab_bbplc_CreditCardsRetailMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Retail credit cards</link:label>
    <link:label id="lab_bbplc_CreditCardsRetailMember_label_en-US" xlink:label="lab_bbplc_CreditCardsRetailMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Cards, Retail [Member]</link:label>
    <link:label id="lab_bbplc_CreditCardsRetailMember_documentation_en-US" xlink:label="lab_bbplc_CreditCardsRetailMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a class of financial assets that represents credit cards, unsecured and other retail lending.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CreditCardsRetailMember" xlink:href="bbplc-20251231.xsd#bbplc_CreditCardsRetailMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CreditCardsRetailMember" xlink:to="lab_bbplc_CreditCardsRetailMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-4930-7f28-aaa4-8bdf905b59b8_terseLabel_en-US" xlink:label="lab_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">9.250% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:label id="lab_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">9.250% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">9.250% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A9250PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfInitialLawsuitsAmended_019c29a6-49d1-7233-883e-ad22ef8ea61d_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfInitialLawsuitsAmended" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of initial lawsuit amended</link:label>
    <link:label id="lab_bbplc_NumberOfInitialLawsuitsAmended_label_en-US" xlink:label="lab_bbplc_NumberOfInitialLawsuitsAmended" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Initial Lawsuits Amended</link:label>
    <link:label id="lab_bbplc_NumberOfInitialLawsuitsAmended_documentation_en-US" xlink:label="lab_bbplc_NumberOfInitialLawsuitsAmended" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Initial Lawsuit Amended</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfInitialLawsuitsAmended" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfInitialLawsuitsAmended"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfInitialLawsuitsAmended" xlink:to="lab_bbplc_NumberOfInitialLawsuitsAmended" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember_019c29a6-4930-780d-b9fc-228d2e2ede3f_terseLabel_en-US" xlink:label="lab_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial instruments at amortised cost</link:label>
    <link:label id="lab_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember_label_en-US" xlink:label="lab_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instruments At Amortised Cost, Category [Member]</link:label>
    <link:label id="lab_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember_documentation_en-US" xlink:label="lab_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the financial instruments carried at amortised cost category.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember" xlink:to="lab_bbplc_FinancialInstrumentsAtAmortisedCostCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities_019c29a6-4931-7b92-bb0b-bb8df4c26d2c_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance of subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities_019c29a6-4931-7930-a77e-7d8cb56e4c27_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Issuances</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from issue of subordinated liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities" xlink:to="lab_ifrs-full_ProceedsFromIssueOfSubordinatedLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember_019c29a6-4828-7ddc-989a-f6e072f199ba_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Private Bank and Wealth Management</link:label>
    <link:label id="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember_019c29a6-4828-702b-84f9-3e2ba75a434e_verboseLabel_en-US" xlink:label="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Barclays Private Bank and Wealth Management</link:label>
    <link:label id="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember_label_en-US" xlink:label="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Private Bank And Wealth Management [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Private Bank And Wealth Management</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysPrivateBankAndWealthManagementMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysPrivateBankAndWealthManagementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysPrivateBankAndWealthManagementMember" xlink:to="lab_bbplc_BarclaysPrivateBankAndWealthManagementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember_019c29a6-4827-7a83-a0a3-d9797016a984_terseLabel_en-US" xlink:label="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Documentary credits and other short-term trade related transactions</link:label>
    <link:label id="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember_label_en-US" xlink:label="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Documentary Credits And Other Short-Term Trade Related Transactions [Member]</link:label>
    <link:label id="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember_documentation_en-US" xlink:label="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for documentary credits and other short-term trade related transactions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember" xlink:href="bbplc-20251231.xsd#bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember" xlink:to="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_019c29a6-49d1-7542-aeb3-e553275db117_verboseLabel_en-US" xlink:label="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Tax charge based on the applicable UK corporation tax rate of 25% (2024: 25%, 2023: 23.5%)</link:label>
    <link:label id="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_label_en-US" xlink:label="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax expense (income) at applicable tax rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxExpenseIncomeAtApplicableTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:to="lab_ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAbstract_019c29a6-48ae-75de-afbe-fd7f264db75a_verboseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_ifrs-full_AssetsAbstract_019c29a6-48ae-73e3-864b-3a20a9342eb3_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_ifrs-full_AssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAbstract" xlink:to="lab_ifrs-full_AssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities_019c29a6-48ae-7a85-9bc7-6d61cd9fc71b_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from redemption or sale of debt securities at amortised cost</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales or maturity of financial assets measured at amortised cost, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities_019c29a6-4931-7322-b06e-2e3faa6b4f64_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Liabilities transferred into level 3</link:label>
    <link:label id="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities_019c29a6-4931-72da-8dee-678ef4f4c53a_negatedLabel_en-US" xlink:label="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Transfers into Level 3 of fair value hierarchy, liabilities</link:label>
    <link:label id="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities_label_en-US" xlink:label="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers into Level 3 of fair value hierarchy, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities" xlink:to="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LegalProceedingsProvisionAbstract_019c29a6-48ae-76ae-9a44-e976815d0f5d_terseLabel_en-US" xlink:label="lab_ifrs-full_LegalProceedingsProvisionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Legal proceedings provision [abstract]</link:label>
    <link:label id="lab_ifrs-full_LegalProceedingsProvisionAbstract_label_en-US" xlink:label="lab_ifrs-full_LegalProceedingsProvisionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal proceedings provision [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LegalProceedingsProvisionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LegalProceedingsProvisionAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LegalProceedingsProvisionAbstract" xlink:to="lab_ifrs-full_LegalProceedingsProvisionAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory_019c29a6-4931-771d-b2e9-1d03919f54f4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest income</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of interest income (expense) [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInterestIncomeExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInternalCreditExposuresTable_019c29a6-4798-7cd8-ab93-64c08745947c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInternalCreditExposuresTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of internal credit grades [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInternalCreditExposuresTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInternalCreditExposuresTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of internal credit grades [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInternalCreditExposuresTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInternalCreditExposuresTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInternalCreditExposuresTable" xlink:to="lab_ifrs-full_DisclosureOfInternalCreditExposuresTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BondsCorporateAndOtherMember_019c29a6-4828-7b8f-b6b2-661a9a8e07ae_terseLabel_en-US" xlink:label="lab_bbplc_BondsCorporateAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bonds - corporate and other</link:label>
    <link:label id="lab_bbplc_BondsCorporateAndOtherMember_label_en-US" xlink:label="lab_bbplc_BondsCorporateAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bonds - Corporate And Other [Member]</link:label>
    <link:label id="lab_bbplc_BondsCorporateAndOtherMember_documentation_en-US" xlink:label="lab_bbplc_BondsCorporateAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Bonds - corporate and other debt instrument.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BondsCorporateAndOtherMember" xlink:href="bbplc-20251231.xsd#bbplc_BondsCorporateAndOtherMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BondsCorporateAndOtherMember" xlink:to="lab_bbplc_BondsCorporateAndOtherMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember_019c29a6-48ae-7597-a175-9b1c5d940e78_terseLabel_en-US" xlink:label="lab_ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disposal groups classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember_label_en-US" xlink:label="lab_ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal groups classified as held for sale [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember" xlink:to="lab_ifrs-full_DisposalGroupsClassifiedAsHeldForSaleMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_019c29a6-4828-776a-92e9-f57d1c1052e5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of accrued expenses and other liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReservesWithinEquityTable_019c29a6-48ae-7aaa-9d4f-b70479bd1c70_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesWithinEquityTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReservesWithinEquityTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesWithinEquityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReservesWithinEquityTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReservesWithinEquityTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReservesWithinEquityTable" xlink:to="lab_ifrs-full_DisclosureOfReservesWithinEquityTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfLawsuitsSubjectToAppeal_019c29a6-4931-7ff8-bf57-26300bac2905_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsSubjectToAppeal" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of lawsuits subject to appeal</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsSubjectToAppeal_label_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsSubjectToAppeal" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Lawsuits Subject To Appeal</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsSubjectToAppeal_documentation_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsSubjectToAppeal" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Lawsuits Subject To Appeal</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfLawsuitsSubjectToAppeal" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfLawsuitsSubjectToAppeal"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfLawsuitsSubjectToAppeal" xlink:to="lab_bbplc_NumberOfLawsuitsSubjectToAppeal" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDefinedBenefitPlansAbstract_019c29a6-48ae-75c4-8dc6-1b1fcc6a1050_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of defined benefit plans [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDefinedBenefitPlansAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of defined benefit plans [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" xlink:to="lab_ifrs-full_DisclosureOfDefinedBenefitPlansAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AmountsNotSubjectToEnforceableNettingArrangements_019c29a6-4931-7ed1-83ed-1607da38b7e1_negatedLabel_en-US" xlink:label="lab_bbplc_AmountsNotSubjectToEnforceableNettingArrangements" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Amounts not subject to enforceable netting arrangements</link:label>
    <link:label id="lab_bbplc_AmountsNotSubjectToEnforceableNettingArrangements_label_en-US" xlink:label="lab_bbplc_AmountsNotSubjectToEnforceableNettingArrangements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts Not Subject To Enforceable Netting Arrangements</link:label>
    <link:label id="lab_bbplc_AmountsNotSubjectToEnforceableNettingArrangements_documentation_en-US" xlink:label="lab_bbplc_AmountsNotSubjectToEnforceableNettingArrangements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The financial liabilities that are not subject to an enforceable master netting arrangement or similar agreement.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AmountsNotSubjectToEnforceableNettingArrangements" xlink:href="bbplc-20251231.xsd#bbplc_AmountsNotSubjectToEnforceableNettingArrangements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AmountsNotSubjectToEnforceableNettingArrangements" xlink:to="lab_bbplc_AmountsNotSubjectToEnforceableNettingArrangements" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersFromStage3Member_019c29a6-4827-77bd-a1fd-73e8ddb2c728_terseLabel_en-US" xlink:label="lab_bbplc_TransfersFromStage3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers from Stage 3</link:label>
    <link:label id="lab_bbplc_TransfersFromStage3Member_label_en-US" xlink:label="lab_bbplc_TransfersFromStage3Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers From Stage 3 [Member]</link:label>
    <link:label id="lab_bbplc_TransfersFromStage3Member_documentation_en-US" xlink:label="lab_bbplc_TransfersFromStage3Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the transfers of financial assets from stage 3 credit impaired.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersFromStage3Member" xlink:href="bbplc-20251231.xsd#bbplc_TransfersFromStage3Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersFromStage3Member" xlink:to="lab_bbplc_TransfersFromStage3Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities_019c29a6-4828-7814-9506-0a8d9b3ab60d_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest paid, classified as financing activities</link:label>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest paid, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised_019c29a6-49d1-7a2e-9f36-d6463f5af520_terseLabel_en-US" xlink:label="lab_ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Difference between initial FV and transaction price to be recognised in profit or loss</link:label>
    <link:label id="lab_ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised_label_en-US" xlink:label="lab_ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:to="lab_ifrs-full_AggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComputerSoftwareMember_019c29a6-49d1-7170-90df-7147b63e1258_terseLabel_en-US" xlink:label="lab_ifrs-full_ComputerSoftwareMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Software</link:label>
    <link:label id="lab_ifrs-full_ComputerSoftwareMember_label_en-US" xlink:label="lab_ifrs-full_ComputerSoftwareMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Computer software [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComputerSoftwareMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComputerSoftwareMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComputerSoftwareMember" xlink:to="lab_ifrs-full_ComputerSoftwareMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LoansAndAdvancesAtAmortisedCostPercentage_019c29a6-48ae-791e-b46b-78ce14de9935_terseLabel_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAtAmortisedCostPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost, percentage</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesAtAmortisedCostPercentage_label_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAtAmortisedCostPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans And Advances At Amortised Cost, Percentage</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesAtAmortisedCostPercentage_documentation_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAtAmortisedCostPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount loans and advances at amortised cost, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LoansAndAdvancesAtAmortisedCostPercentage" xlink:href="bbplc-20251231.xsd#bbplc_LoansAndAdvancesAtAmortisedCostPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LoansAndAdvancesAtAmortisedCostPercentage" xlink:to="lab_bbplc_LoansAndAdvancesAtAmortisedCostPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FixedAssetTimingDifferencesMember_019c29a6-4828-7828-ae33-e1252d66def0_terseLabel_en-US" xlink:label="lab_bbplc_FixedAssetTimingDifferencesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed asset timing differences</link:label>
    <link:label id="lab_bbplc_FixedAssetTimingDifferencesMember_label_en-US" xlink:label="lab_bbplc_FixedAssetTimingDifferencesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Asset Timing Differences [Member]</link:label>
    <link:label id="lab_bbplc_FixedAssetTimingDifferencesMember_documentation_en-US" xlink:label="lab_bbplc_FixedAssetTimingDifferencesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for fixed asset timing differences.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FixedAssetTimingDifferencesMember" xlink:href="bbplc-20251231.xsd#bbplc_FixedAssetTimingDifferencesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FixedAssetTimingDifferencesMember" xlink:to="lab_bbplc_FixedAssetTimingDifferencesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis_019c29a6-4931-73db-b23f-5f3e454ca7c9_terseLabel_en-US" xlink:label="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit impairment of financial instruments [axis]</link:label>
    <link:label id="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis_label_en-US" xlink:label="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit impairment of financial instruments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" xlink:to="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AssetsByFunctionsAxis_019c29a6-4828-7941-b9d2-e31f4dab52b5_terseLabel_en-US" xlink:label="lab_bbplc_AssetsByFunctionsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets By Functions [Axis]</link:label>
    <link:label id="lab_bbplc_AssetsByFunctionsAxis_label_en-US" xlink:label="lab_bbplc_AssetsByFunctionsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets By Functions [Axis]</link:label>
    <link:label id="lab_bbplc_AssetsByFunctionsAxis_documentation_en-US" xlink:label="lab_bbplc_AssetsByFunctionsAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Assets By Functions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AssetsByFunctionsAxis" xlink:href="bbplc-20251231.xsd#bbplc_AssetsByFunctionsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AssetsByFunctionsAxis" xlink:to="lab_bbplc_AssetsByFunctionsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PooledCashFundsMember_019c29a6-49d1-71e0-a446-d190d33ae812_terseLabel_en-US" xlink:label="lab_bbplc_PooledCashFundsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pooled cash funds</link:label>
    <link:label id="lab_bbplc_PooledCashFundsMember_label_en-US" xlink:label="lab_bbplc_PooledCashFundsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pooled Cash Funds [Member]</link:label>
    <link:label id="lab_bbplc_PooledCashFundsMember_documentation_en-US" xlink:label="lab_bbplc_PooledCashFundsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pooled Cash Funds</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PooledCashFundsMember" xlink:href="bbplc-20251231.xsd#bbplc_PooledCashFundsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PooledCashFundsMember" xlink:to="lab_bbplc_PooledCashFundsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount_019c29a6-48ae-7d29-aac8-d371c28e0438_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount of financial assets for which loss allowance has changed to 12-month measurement</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets with modified contractual cash flows while loss allowance measured at lifetime expected credit losses for which loss allowance changed during reporting period to 12-month expected credit losses, gross carrying amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount" xlink:to="lab_ifrs-full_FinancialAssetsWithModifiedContractualCashFlowsWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesForWhichLossAllowanceChangedDuringReportingPeriodTo12monthExpectedCreditLossesGrossCarryingAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReservesWithinEquityAxis_019c29a6-4798-737e-81f7-e8d7e3de43fe_terseLabel_en-US" xlink:label="lab_ifrs-full_ReservesWithinEquityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reserves within equity [axis]</link:label>
    <link:label id="lab_ifrs-full_ReservesWithinEquityAxis_label_en-US" xlink:label="lab_ifrs-full_ReservesWithinEquityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserves within equity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReservesWithinEquityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReservesWithinEquityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReservesWithinEquityAxis" xlink:to="lab_ifrs-full_ReservesWithinEquityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MaterialsAndBuildingMember_019c29a6-4930-721b-ba66-de83c274aec4_terseLabel_en-US" xlink:label="lab_bbplc_MaterialsAndBuildingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Materials and Building</link:label>
    <link:label id="lab_bbplc_MaterialsAndBuildingMember_label_en-US" xlink:label="lab_bbplc_MaterialsAndBuildingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Materials And Building [Member]</link:label>
    <link:label id="lab_bbplc_MaterialsAndBuildingMember_documentation_en-US" xlink:label="lab_bbplc_MaterialsAndBuildingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Materials And Building</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MaterialsAndBuildingMember" xlink:href="bbplc-20251231.xsd#bbplc_MaterialsAndBuildingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MaterialsAndBuildingMember" xlink:to="lab_bbplc_MaterialsAndBuildingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityInvestmentsMember_019c29a6-4828-7203-9376-9c77b07b17a3_verboseLabel_en-US" xlink:label="lab_ifrs-full_EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Equities</link:label>
    <link:label id="lab_ifrs-full_EquityInvestmentsMember_label_en-US" xlink:label="lab_ifrs-full_EquityInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity investments [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInvestmentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityInvestmentsMember" xlink:to="lab_ifrs-full_EquityInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_019c29a6-4828-7ac4-886b-1463742ef3f3_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember_019c29a6-49d1-71fc-900f-5a6ea64b158a_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash flows</link:label>
    <link:label id="lab_ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial forecast of cash inflows (outflows) for cash-generating unit, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember" xlink:to="lab_ifrs-full_FinancialForecastOfCashFlowsForCashgeneratingUnitMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset_019c29a6-49d1-79bb-b853-5909f1316a1a_terseLabel_en-US" xlink:label="lab_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee contributions</link:label>
    <link:label id="lab_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from contributions to plan by plan participants</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfFinancialAssetsDomain_019c29a6-4828-7fb7-b400-e6dac1d56c09_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of financial assets [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfFinancialAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of financial assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfFinancialAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfFinancialAssetsDomain" xlink:to="lab_ifrs-full_TypesOfFinancialAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DownsideScenarioMember_019c29a6-49d1-7e3a-921b-1cb0c8c9f9c5_terseLabel_en-US" xlink:label="lab_bbplc_DownsideScenarioMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Downside scenario</link:label>
    <link:label id="lab_bbplc_DownsideScenarioMember_label_en-US" xlink:label="lab_bbplc_DownsideScenarioMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Downside Scenario [Member]</link:label>
    <link:label id="lab_bbplc_DownsideScenarioMember_documentation_en-US" xlink:label="lab_bbplc_DownsideScenarioMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Downside Scenario</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DownsideScenarioMember" xlink:href="bbplc-20251231.xsd#bbplc_DownsideScenarioMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DownsideScenarioMember" xlink:to="lab_bbplc_DownsideScenarioMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress_019c29a6-48ae-7131-a57d-1ea91d294373_terseLabel_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible provisions for UK customer redress</link:label>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress_label_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Non-Deductible Provisions For UK Customer Redress</link:label>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress_documentation_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to non-deductible provisionsfor UK customer redress. . [Refer: Accounting profit]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:href="bbplc-20251231.xsd#bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:to="lab_bbplc_TaxEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ValueAtRisk_019c29a6-4828-7724-ac5c-e8a52f9cc527_terseLabel_en-US" xlink:label="lab_ifrs-full_ValueAtRisk" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Value at risk</link:label>
    <link:label id="lab_ifrs-full_ValueAtRisk_label_en-US" xlink:label="lab_ifrs-full_ValueAtRisk" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Value at risk</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValueAtRisk" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValueAtRisk"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ValueAtRisk" xlink:to="lab_ifrs-full_ValueAtRisk" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LeaseLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_LeaseLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseLiabilitiesAbstract" xlink:to="lab_ifrs-full_LeaseLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-4798-7534-a6ff-99785d799a86_terseLabel_en-US" xlink:label="lab_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">4.650% Perpetual Subordinated Contingent Convertible Securities (SGD500m)</link:label>
    <link:label id="lab_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">4.650% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">4.650% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A4.650PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_019c29a6-4828-7c07-b235-d91feaf3ac0f_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency translation movements</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_019c29a6-4828-7f46-9571-ef61d54ca7fe_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Currency translation differences</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, net of tax, exchange differences on translation of foreign operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_019c29a6-4828-75d4-b282-466cd9644558_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_WholesalePortfoliosMember_019c29a6-48ae-790f-bd5a-b192c6c2ec4c_terseLabel_en-US" xlink:label="lab_bbplc_WholesalePortfoliosMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Wholesale portfolios</link:label>
    <link:label id="lab_bbplc_WholesalePortfoliosMember_label_en-US" xlink:label="lab_bbplc_WholesalePortfoliosMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Wholesale Portfolios [member]</link:label>
    <link:label id="lab_bbplc_WholesalePortfoliosMember_documentation_en-US" xlink:label="lab_bbplc_WholesalePortfoliosMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the wholesale portfolios of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_WholesalePortfoliosMember" xlink:href="bbplc-20251231.xsd#bbplc_WholesalePortfoliosMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_WholesalePortfoliosMember" xlink:to="lab_bbplc_WholesalePortfoliosMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract_019c29a6-4828-7c34-9886-637c6800ebee_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in other provisions [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in other provisions [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_019c29a6-4930-7ad1-9699-83f7d3466b4c_negatedLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Amounts reclassified in relation to cash flows affecting profit or loss</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
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    <link:label id="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitmentsMember_documentation_en-US" xlink:label="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for standby facilities, credit lines and other commitments including forward starting reverse repurchase agreements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_StandbyFacilitiesCreditLinesAndOtherCommitmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitmentsMember" xlink:to="lab_bbplc_StandbyFacilitiesCreditLinesAndOtherCommitmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DebtSecurities_019c29a6-4930-7297-9cf1-8a91fb25b1ca_verboseLabel_en-US" xlink:label="lab_ifrs-full_DebtSecurities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Debt securities</link:label>
    <link:label id="lab_ifrs-full_DebtSecurities_label_en-US" xlink:label="lab_ifrs-full_DebtSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt instruments issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtSecurities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DebtSecurities" xlink:to="lab_ifrs-full_DebtSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable_019c29a6-48ae-74b1-a84e-3d54405de33f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests_019c29a6-48ae-7b1d-b6fd-1a765172d4ea_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-controlling interests - proportion of voting interests</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests_label_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held by non-controlling interests</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests" xlink:to="lab_ifrs-full_ProportionOfVotingRightsHeldByNoncontrollingInterests" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember_019c29a6-49d1-71a0-b1b4-6a084dec1693_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Own credit reserve</link:label>
    <link:label id="lab_ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember_label_en-US" xlink:label="lab_ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of change in fair value of financial liability attributable to change in credit risk of liability [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember" xlink:to="lab_ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_019c29a6-48ae-7437-ae73-bff4fc1e132c_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_label_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent" xlink:to="lab_dei_EntityInteractiveDataCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember_019c29a6-49d1-7e04-a294-af491eb9397c_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL from individually assessed impairments</link:label>
    <link:label id="lab_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember_019c29a6-49d1-7089-9e14-aeb7362dad7e_verboseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">ECL from individually assessed exposures</link:label>
    <link:label id="lab_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember_label_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected credit losses individually assessed [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember" xlink:to="lab_ifrs-full_ExpectedCreditLossesIndividuallyAssessedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ConsiderationPaidReceived_019c29a6-4798-7ed3-8110-b450cb4bf3f7_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ConsiderationPaidReceived" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Consideration received</link:label>
    <link:label id="lab_ifrs-full_ConsiderationPaidReceived_label_en-US" xlink:label="lab_ifrs-full_ConsiderationPaidReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consideration paid (received)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ConsiderationPaidReceived" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConsiderationPaidReceived"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ConsiderationPaidReceived" xlink:to="lab_ifrs-full_ConsiderationPaidReceived" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyAxis_019c29a6-4931-7223-a58c-c6d6764a38f8_terseLabel_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [axis]</link:label>
    <link:label id="lab_ifrs-full_LevelsOfFairValueHierarchyAxis_label_en-US" xlink:label="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Levels of fair value hierarchy [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="lab_ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_019c29a6-48ae-775c-a8d9-b0707d00711b_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for offsetting financial assets and financial liabilities</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for offsetting of financial instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForOffsettingOfFinancialInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain_019c29a6-4828-70b6-9629-252d4625b039_terseLabel_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units [domain]</link:label>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain_label_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:to="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_WithinSixToTenYearsMember_019c29a6-4827-76ff-830c-06205d820513_terseLabel_en-US" xlink:label="lab_bbplc_WithinSixToTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Within six to ten years</link:label>
    <link:label id="lab_bbplc_WithinSixToTenYearsMember_label_en-US" xlink:label="lab_bbplc_WithinSixToTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Within Six To Ten Years [Member]</link:label>
    <link:label id="lab_bbplc_WithinSixToTenYearsMember_documentation_en-US" xlink:label="lab_bbplc_WithinSixToTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for expiration of carryforward within 6 to 10 years.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_WithinSixToTenYearsMember" xlink:href="bbplc-20251231.xsd#bbplc_WithinSixToTenYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_WithinSixToTenYearsMember" xlink:to="lab_bbplc_WithinSixToTenYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract_019c29a6-49d1-7bdd-ac5d-deaa5ee5cb6d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xlink:to="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IssuedDebtMember_019c29a6-4931-7aba-ba8d-23330fd03a81_terseLabel_en-US" xlink:label="lab_bbplc_IssuedDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issued debt</link:label>
    <link:label id="lab_bbplc_IssuedDebtMember_label_en-US" xlink:label="lab_bbplc_IssuedDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued Debt [Member]</link:label>
    <link:label id="lab_bbplc_IssuedDebtMember_documentation_en-US" xlink:label="lab_bbplc_IssuedDebtMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Issued Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IssuedDebtMember" xlink:href="bbplc-20251231.xsd#bbplc_IssuedDebtMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IssuedDebtMember" xlink:to="lab_bbplc_IssuedDebtMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems_019c29a6-4931-7ba3-af88-c5ecaf3742a8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedged items [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedged items [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk_019c29a6-4798-7a3a-bd2f-1f3c8e42565c_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Value mitigated by related credit derivatives, maximum exposure</link:label>
    <link:label id="lab_ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk_label_en-US" xlink:label="lab_ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amount by which credit derivatives or similar instruments related to financial assets designated as measured at fair value through profit or loss mitigate maximum exposure to credit risk</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk" xlink:to="lab_ifrs-full_AmountByWhichFinancialAssetsRelatedCreditDerivativesOrSimilarInstrumentsMitigateMaximumExposureToCreditRisk" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_019c29a6-4931-757c-8ce4-abd52d8aea14_negatedLabel_en-US" xlink:label="lab_ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Amounts offset</link:label>
    <link:label id="lab_ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_label_en-US" xlink:label="lab_ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross financial liabilities set off against financial assets subject to offsetting, enforceable master netting arrangements or similar agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:to="lab_ifrs-full_GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsPaidOtherSharesPerShare_019c29a6-49d1-7959-8dec-b179d927029f_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOtherSharesPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid on preference shares (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidOtherSharesPerShare_label_en-US" xlink:label="lab_ifrs-full_DividendsPaidOtherSharesPerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends paid, other shares per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidOtherSharesPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaidOtherSharesPerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsPaidOtherSharesPerShare" xlink:to="lab_ifrs-full_DividendsPaidOtherSharesPerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_NameOfMajorCustomerDomain_019c29a6-4931-7d9d-83ba-fef5186cba90_terseLabel_en-US" xlink:label="lab_srt_NameOfMajorCustomerDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer [Domain]</link:label>
    <link:label id="lab_srt_NameOfMajorCustomerDomain_label_en-US" xlink:label="lab_srt_NameOfMajorCustomerDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_NameOfMajorCustomerDomain" xlink:to="lab_srt_NameOfMajorCustomerDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_019c29a6-4930-7be2-9f73-25dea846915f_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK_019c29a6-48ae-73f9-ae7f-b5c7557b55cd_terseLabel_en-US" xlink:label="lab_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in recognition of deferred tax and effect of unrecognised tax losses</link:label>
    <link:label id="lab_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK_label_en-US" xlink:label="lab_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Of Changes in Recognition of Deferred Tax and Unrecognised Tax Losses And UK</link:label>
    <link:label id="lab_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK_documentation_en-US" xlink:label="lab_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Effect Of Changes in Recognition of Deferred Tax and Unrecognised Tax Losses And UK</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:href="bbplc-20251231.xsd#bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:to="lab_bbplc_TaxEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfessionalFeesExpense_019c29a6-49d1-75d8-822a-654a4c965950_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfessionalFeesExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consultancy, legal and professional fees</link:label>
    <link:label id="lab_ifrs-full_ProfessionalFeesExpense_label_en-US" xlink:label="lab_ifrs-full_ProfessionalFeesExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Professional fees expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfessionalFeesExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfessionalFeesExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfessionalFeesExpense" xlink:to="lab_ifrs-full_ProfessionalFeesExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DirectorsExpenseCompaniesAct2006_019c29a6-4931-72c2-9dd5-e9160247ec51_totalLabel_en-US" xlink:label="lab_bbplc_DirectorsExpenseCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total directors expense in accordance with companies act 2006</link:label>
    <link:label id="lab_bbplc_DirectorsExpenseCompaniesAct2006_label_en-US" xlink:label="lab_bbplc_DirectorsExpenseCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Directors Expense Companies Act 2006</link:label>
    <link:label id="lab_bbplc_DirectorsExpenseCompaniesAct2006_documentation_en-US" xlink:label="lab_bbplc_DirectorsExpenseCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of directors expenses is presented in accordance with the companies act 2006.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DirectorsExpenseCompaniesAct2006" xlink:href="bbplc-20251231.xsd#bbplc_DirectorsExpenseCompaniesAct2006"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DirectorsExpenseCompaniesAct2006" xlink:to="lab_bbplc_DirectorsExpenseCompaniesAct2006" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DepositsFromBanksAndCustomers_019c29a6-4931-793b-b6bf-4c7013834acc_terseLabel_en-US" xlink:label="lab_bbplc_DepositsFromBanksAndCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_bbplc_DepositsFromBanksAndCustomers_label_en-US" xlink:label="lab_bbplc_DepositsFromBanksAndCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_bbplc_DepositsFromBanksAndCustomers_documentation_en-US" xlink:label="lab_bbplc_DepositsFromBanksAndCustomers" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of deposit liabilities from banks and customers held by the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DepositsFromBanksAndCustomers" xlink:href="bbplc-20251231.xsd#bbplc_DepositsFromBanksAndCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DepositsFromBanksAndCustomers" xlink:to="lab_bbplc_DepositsFromBanksAndCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract_019c29a6-49d1-7b3f-8bcb-a250ca3c59da_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in deferred tax liability (asset) [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in deferred tax liability (asset) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherInvestmentProgramMember_019c29a6-4828-7399-a370-72549f9c2867_terseLabel_en-US" xlink:label="lab_bbplc_OtherInvestmentProgramMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbplc_OtherInvestmentProgramMember_label_en-US" xlink:label="lab_bbplc_OtherInvestmentProgramMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Investment Program [Member]</link:label>
    <link:label id="lab_bbplc_OtherInvestmentProgramMember_documentation_en-US" xlink:label="lab_bbplc_OtherInvestmentProgramMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other investment programs.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherInvestmentProgramMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherInvestmentProgramMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherInvestmentProgramMember" xlink:to="lab_bbplc_OtherInvestmentProgramMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_019c29a6-4798-70d4-915a-1ec969189b7a_terseLabel_en-US" xlink:label="lab_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">6.125% Perpetual Subordinated Contingent Convertible Securities (USD1,500m)</link:label>
    <link:label id="lab_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_label_en-US" xlink:label="lab_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">6.125% Perpetual Subordinated Contingent Convertible Securities Due 2025 [Member]</link:label>
    <link:label id="lab_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_documentation_en-US" xlink:label="lab_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 6.125% USD denominated currency, Fixed Rate Resetting Perpetual Subordinated Contingent Convertible Securities of the entity, with an initial call date of 2025.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:href="bbplc-20251231.xsd#bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:to="lab_bbplc_A6125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable_019c29a6-49d1-7aaa-9355-4cc5b891caa7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of continuing involvement in derecognised financial assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of continuing involvement in derecognised financial assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToAbstract_019c29a6-48ae-701e-a4dc-07737da396b7_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Attributable to:</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToAbstract_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToAbstract" xlink:to="lab_ifrs-full_ProfitLossAttributableToAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes_019c29a6-48ae-735f-b106-7698bdca6b6e_terseLabel_en-US" xlink:label="lab_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-creditable taxes including withholding taxes, percentage</link:label>
    <link:label id="lab_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes_label_en-US" xlink:label="lab_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Of Non-Creditable Taxes Including Withholding Taxes</link:label>
    <link:label id="lab_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes_documentation_en-US" xlink:label="lab_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the United Kingdom Bank levy being non-deductible. [Refer: Average effective tax rate; Applicable tax rate]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:href="bbplc-20251231.xsd#bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:to="lab_bbplc_TaxRateEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties_019c29a6-49d1-7878-822d-f0677e6fa79f_terseLabel_en-US" xlink:label="lab_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans issued during the year</link:label>
    <link:label id="lab_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties_label_en-US" xlink:label="lab_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash receipts from repayment of advances and loans made to related parties</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties" xlink:to="lab_ifrs-full_CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax_019c29a6-49d1-7336-9b21-13f511294dcb_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net gains/(losses) from changes in fair value</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax_019c29a6-49d1-7056-bb1d-68f33cffc4f6_verboseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net gains/(losses) from changes in fair value</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on cash flow hedges, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:to="lab_ifrs-full_GainsLossesOnCashFlowHedgesBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetAssetsLiabilitiesAbstract_019c29a6-48ae-7115-985d-cd1059182536_terseLabel_en-US" xlink:label="lab_ifrs-full_NetAssetsLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets (liabilities)</link:label>
    <link:label id="lab_ifrs-full_NetAssetsLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_NetAssetsLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net assets (liabilities) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetAssetsLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetAssetsLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetAssetsLiabilitiesAbstract" xlink:to="lab_ifrs-full_NetAssetsLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DiscountedCashFlowMember_019c29a6-4930-7eca-a941-f94ca22d171b_terseLabel_en-US" xlink:label="lab_ifrs-full_DiscountedCashFlowMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discounted cash flows</link:label>
    <link:label id="lab_ifrs-full_DiscountedCashFlowMember_label_en-US" xlink:label="lab_ifrs-full_DiscountedCashFlowMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discounted cash flow [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DiscountedCashFlowMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DiscountedCashFlowMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DiscountedCashFlowMember" xlink:to="lab_ifrs-full_DiscountedCashFlowMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_019c29a6-4828-7b53-ad24-6eb759d3429a_terseLabel_en-US" xlink:label="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Method of assessment of expected credit losses [axis]</link:label>
    <link:label id="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis_label_en-US" xlink:label="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Method of assessment of expected credit losses [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis" xlink:to="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes_019c29a6-49d1-7795-8c34-716f05068890_terseLabel_en-US" xlink:label="lab_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-creditable taxes including withholding taxes</link:label>
    <link:label id="lab_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes_label_en-US" xlink:label="lab_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Of Non-Creditable Taxes Including Withholding Taxes</link:label>
    <link:label id="lab_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes_documentation_en-US" xlink:label="lab_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to non-creditable expenses including withholding taxes. [Refer: Accounting profit]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:href="bbplc-20251231.xsd#bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:to="lab_bbplc_TaxEffectOfNonCreditableTaxesIncludingWithholdingTaxes" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock_019c29a6-4930-7a67-b451-2dc7e9f3a13f_terseLabel_en-US" xlink:label="lab_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of staff costs</link:label>
    <link:label id="lab_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock_label_en-US" xlink:label="lab_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule Of Short-Term Employee Benefits Explanatory [Table Text Block]</link:label>
    <link:label id="lab_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of short-term employee benefits.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock" xlink:to="lab_bbplc_ScheduleOfShortTermEmployeeBenefitsExplanatoryTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember_019c29a6-4828-7343-a88c-d3ba862eec37_terseLabel_en-US" xlink:label="lab_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Guarantees and letters of credit pledged as collateral security</link:label>
    <link:label id="lab_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember_label_en-US" xlink:label="lab_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Guarantees And Letters Of Credit Pledged As Collateral Security [Member]</link:label>
    <link:label id="lab_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember_documentation_en-US" xlink:label="lab_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for guarantees and letters of credit pledged as collateral security.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember" xlink:href="bbplc-20251231.xsd#bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember" xlink:to="lab_bbplc_GuaranteesAndLettersOfCreditPledgedAsCollateralSecurityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CommunicationAndNetworkEquipmentMember_019c29a6-48ae-79a4-ae6b-2c7d234c7114_terseLabel_en-US" xlink:label="lab_ifrs-full_CommunicationAndNetworkEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equipment installed in freehold and leasehold property</link:label>
    <link:label id="lab_ifrs-full_CommunicationAndNetworkEquipmentMember_019c29a6-48ae-7db9-bbdb-ebe9de210a72_verboseLabel_en-US" xlink:label="lab_ifrs-full_CommunicationAndNetworkEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Equipment</link:label>
    <link:label id="lab_ifrs-full_CommunicationAndNetworkEquipmentMember_label_en-US" xlink:label="lab_ifrs-full_CommunicationAndNetworkEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Communication and network equipment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CommunicationAndNetworkEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CommunicationAndNetworkEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CommunicationAndNetworkEquipmentMember" xlink:to="lab_ifrs-full_CommunicationAndNetworkEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities_019c29a6-48ae-7f7e-8646-7c9ea615b55b_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total assets of the entity</link:label>
    <link:label id="lab_ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities_label_en-US" xlink:label="lab_ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets recognised in entity's financial statements in relation to structured entities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities" xlink:to="lab_ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfLeasesExplanatory_019c29a6-4931-75dc-8774-76db7a26e352_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leases</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfLeasesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of leases [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfLeasesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfLeasesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfLeasesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfLeasesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember_019c29a6-4828-704e-99e4-d12d0c8cdcfa_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Liabilities held for trading</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember_019c29a6-4828-77cd-b05c-8515dc0e1f4f_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss that meet definition of held for trading, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory_019c29a6-48ae-7314-a9c4-462145f8d03b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of principal subsidiaries</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about consolidated structured entities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract_019c29a6-48ae-7924-965c-050f5a1b5591_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of information about consolidated structured entities [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about consolidated structured entities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019c29a6-4931-7a97-a850-51df9af41f11_totalLabel_en-US" xlink:label="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total comprehensive (loss)/income from continuing operations</link:label>
    <link:label id="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of total comprehensive income of associates and joint ventures accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PreferenceSharesPrincipalOutstanding_019c29a6-4798-7815-b1f5-a8473c21a243_terseLabel_en-US" xlink:label="lab_bbplc_PreferenceSharesPrincipalOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference shares, principal outstanding</link:label>
    <link:label id="lab_bbplc_PreferenceSharesPrincipalOutstanding_label_en-US" xlink:label="lab_bbplc_PreferenceSharesPrincipalOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference Shares, Principal Outstanding</link:label>
    <link:label id="lab_bbplc_PreferenceSharesPrincipalOutstanding_documentation_en-US" xlink:label="lab_bbplc_PreferenceSharesPrincipalOutstanding" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preference Shares, Principal Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PreferenceSharesPrincipalOutstanding" xlink:href="bbplc-20251231.xsd#bbplc_PreferenceSharesPrincipalOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PreferenceSharesPrincipalOutstanding" xlink:to="lab_bbplc_PreferenceSharesPrincipalOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BondsIndexLinkedGovernmentMember_019c29a6-48ae-71fb-890a-66b8b9f23e69_terseLabel_en-US" xlink:label="lab_bbplc_BondsIndexLinkedGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bonds - index-linked government</link:label>
    <link:label id="lab_bbplc_BondsIndexLinkedGovernmentMember_label_en-US" xlink:label="lab_bbplc_BondsIndexLinkedGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bonds Index Linked Government [Member]</link:label>
    <link:label id="lab_bbplc_BondsIndexLinkedGovernmentMember_documentation_en-US" xlink:label="lab_bbplc_BondsIndexLinkedGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Bonds - index linked government debt instruments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BondsIndexLinkedGovernmentMember" xlink:href="bbplc-20251231.xsd#bbplc_BondsIndexLinkedGovernmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BondsIndexLinkedGovernmentMember" xlink:to="lab_bbplc_BondsIndexLinkedGovernmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation_019c29a6-49d1-7c71-9500-eb59298e088c_terseLabel_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible provisions for investigations and litigation</link:label>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation_label_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Non-Deductible Provisions For Investigations And Litigation</link:label>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation_documentation_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to non-deductible provisions for investigations and litigation. [Refer: Accounting profit]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:href="bbplc-20251231.xsd#bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:to="lab_bbplc_TaxEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfCashFlowsAbstract_019c29a6-4828-7859-8225-c310edc28b14_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of cash flows [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfCashFlowsAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of cash flows [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfCashFlowsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfCashFlowsAbstract" xlink:to="lab_ifrs-full_StatementOfCashFlowsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax_019c29a6-4930-74b5-b1e7-e1f1f2c088b1_terseLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount recycled from OCI due to hedged item affecting income statement, cash flow hedges</link:label>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax_label_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification adjustments on cash flow hedges for which hedged item affected profit or loss, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax" xlink:to="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedItemAffectedProfitOrLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis_019c29a6-4931-7e2b-a2e3-d7a7a8185887_terseLabel_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [axis]</link:label>
    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis_label_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:to="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityListingsLineItems_019c29a6-48ae-7f52-a8c3-c245851795e3_terseLabel_en-US" xlink:label="lab_dei_EntityListingsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Listings [Line Items]</link:label>
    <link:label id="lab_dei_EntityListingsLineItems_label_en-US" xlink:label="lab_dei_EntityListingsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Listings [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsLineItems" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityListingsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityListingsLineItems" xlink:to="lab_dei_EntityListingsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherAuditRelatedFeesMember_019c29a6-49d1-78b9-9872-fb4e63cda8b4_terseLabel_en-US" xlink:label="lab_bbplc_OtherAuditRelatedFeesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other audit related fees</link:label>
    <link:label id="lab_bbplc_OtherAuditRelatedFeesMember_label_en-US" xlink:label="lab_bbplc_OtherAuditRelatedFeesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Audit Related Fees [Member]</link:label>
    <link:label id="lab_bbplc_OtherAuditRelatedFeesMember_documentation_en-US" xlink:label="lab_bbplc_OtherAuditRelatedFeesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other audit related fees.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherAuditRelatedFeesMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherAuditRelatedFeesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherAuditRelatedFeesMember" xlink:to="lab_bbplc_OtherAuditRelatedFeesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod_019c29a6-4931-7bff-901e-c69434a14351_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments in respect of prior years</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for current tax of prior periods</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:to="lab_ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost_019c29a6-4827-7d7c-b6e1-52e866627e87_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost to banks and customers</link:label>
    <link:label id="lab_ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest revenue for financial assets measured at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost" xlink:to="lab_ifrs-full_InterestIncomeForFinancialAssetsMeasuredAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember_019c29a6-48ae-7b4d-a76d-58a75ffeed7d_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.15 to 0.30%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Point One Five To Point Three Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale retail lending with a default grade betweeen 6 and 8. A probability of default between 0.15% and 0.30%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultPointOneFiveToPointThreePercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DeferredMembersNonAfterworkMember_019c29a6-4798-7cbb-b4e9-12820eeb17fa_terseLabel_en-US" xlink:label="lab_bbplc_DeferredMembersNonAfterworkMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred members (Non-Afterwork)</link:label>
    <link:label id="lab_bbplc_DeferredMembersNonAfterworkMember_label_en-US" xlink:label="lab_bbplc_DeferredMembersNonAfterworkMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Members, Non-Afterwork [Member]</link:label>
    <link:label id="lab_bbplc_DeferredMembersNonAfterworkMember_documentation_en-US" xlink:label="lab_bbplc_DeferredMembersNonAfterworkMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred Members, Non-Afterwork</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DeferredMembersNonAfterworkMember" xlink:href="bbplc-20251231.xsd#bbplc_DeferredMembersNonAfterworkMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DeferredMembersNonAfterworkMember" xlink:to="lab_bbplc_DeferredMembersNonAfterworkMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_019c29a6-4828-7d95-a54d-a1abf994e093_terseLabel_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_label_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:to="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities_019c29a6-48ae-728b-a39c-9b9acaf8e2a6_terseLabel_en-US" xlink:label="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accruals and deferred income</link:label>
    <link:label id="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities_label_en-US" xlink:label="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accruals and deferred income including contract liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities" xlink:to="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TangibleEquity_019c29a6-4798-7709-a12e-c97b9ff49f79_terseLabel_en-US" xlink:label="lab_bbplc_TangibleEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tangible equity</link:label>
    <link:label id="lab_bbplc_TangibleEquity_label_en-US" xlink:label="lab_bbplc_TangibleEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tangible Equity</link:label>
    <link:label id="lab_bbplc_TangibleEquity_documentation_en-US" xlink:label="lab_bbplc_TangibleEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tangible Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TangibleEquity" xlink:href="bbplc-20251231.xsd#bbplc_TangibleEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TangibleEquity" xlink:to="lab_bbplc_TangibleEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost_019c29a6-48ae-7ed2-a7b9-d25c4b3a552e_terseLabel_en-US" xlink:label="lab_ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net losses from disposals of financial assets and liabilities measured at amortised cost</link:label>
    <link:label id="lab_ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) arising from derecognition of financial assets measured at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost" xlink:to="lab_ifrs-full_GainLossArisingFromDerecognitionOfFinancialAssetsMeasuredAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxEffectOfForeignTaxRates_019c29a6-4931-7474-bffb-aa37f3df3aca_verboseLabel_en-US" xlink:label="lab_ifrs-full_TaxEffectOfForeignTaxRates" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Impact of profits/losses earned in territories with different statutory rates to the UK (weighted average tax rate is 23.5% (2024: 23%, 2023: 23.6%))</link:label>
    <link:label id="lab_ifrs-full_TaxEffectOfForeignTaxRates_label_en-US" xlink:label="lab_ifrs-full_TaxEffectOfForeignTaxRates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax effect of foreign tax rates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxEffectOfForeignTaxRates" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectOfForeignTaxRates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectOfForeignTaxRates" xlink:to="lab_ifrs-full_TaxEffectOfForeignTaxRates" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-4930-782b-a696-6e3801ec68cb_terseLabel_en-US" xlink:label="lab_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">8.000% Perpetual Subordinated Contingent Convertible Securities (USD2,000m)</link:label>
    <link:label id="lab_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">8.000% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">8.000% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A8000PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock_019c29a6-49d1-7cd9-8281-2db0606b7545_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure required by the Companies Act 2006</link:label>
    <link:label id="lab_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Required By Companies Act 2006 [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure presents information regarding directors in accordance with companies act 2006.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock" xlink:to="lab_bbplc_DisclosureRequiredByCompaniesAct2006TableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfProductsAndServicesLineItems_019c29a6-48ae-7fbb-beba-2fa53b57b966_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfProductsAndServicesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of products and services [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfProductsAndServicesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfProductsAndServicesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of products and services [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProductsAndServicesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfProductsAndServicesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfProductsAndServicesLineItems" xlink:to="lab_ifrs-full_DisclosureOfProductsAndServicesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherEmployeeExpense_019c29a6-4798-74e0-8be1-7347f7f46bd8_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherEmployeeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other compensation costs</link:label>
    <link:label id="lab_ifrs-full_OtherEmployeeExpense_label_en-US" xlink:label="lab_ifrs-full_OtherEmployeeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other employee expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEmployeeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEmployeeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherEmployeeExpense" xlink:to="lab_ifrs-full_OtherEmployeeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost_019c29a6-4931-7709-ae74-5e68acb89bff_terseLabel_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost to customers</link:label>
    <link:label id="lab_ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and advances to customers at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost" xlink:to="lab_ifrs-full_LoansAndAdvancesToCustomersAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_019c29a6-49d1-703d-9c0a-cd95a124f770_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Own credit</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, before tax, change in fair value of financial liability attributable to change in credit risk of liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LoanAssetsReclassifiedToBonds_019c29a6-4798-78d9-8362-c7891fa149b2_terseLabel_en-US" xlink:label="lab_bbplc_LoanAssetsReclassifiedToBonds" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reclassification of loan asset</link:label>
    <link:label id="lab_bbplc_LoanAssetsReclassifiedToBonds_label_en-US" xlink:label="lab_bbplc_LoanAssetsReclassifiedToBonds" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loan Assets Reclassified To Bonds</link:label>
    <link:label id="lab_bbplc_LoanAssetsReclassifiedToBonds_documentation_en-US" xlink:label="lab_bbplc_LoanAssetsReclassifiedToBonds" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loan Assets Reclassified To Bonds</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LoanAssetsReclassifiedToBonds" xlink:href="bbplc-20251231.xsd#bbplc_LoanAssetsReclassifiedToBonds"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LoanAssetsReclassifiedToBonds" xlink:to="lab_bbplc_LoanAssetsReclassifiedToBonds" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_019c29a6-48ae-7251-a15f-871c6c7d7dc0_verboseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investments in associates and joint ventures</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_019c29a6-48ae-7fa4-8d20-371647e75eac_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in associates and joint ventures</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_019c29a6-48ae-7323-9d1d-933ab55870a6_totalLabel_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total investments accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities_019c29a6-48ae-7b5b-839b-7a0d7a296227_negatedLabel_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases, fair value measurement, liabilities</link:label>
    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchases, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchasesFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_PurchasesFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome_019c29a6-48ae-7751-8c8b-b356919ee322_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income tax relating to cash flow hedges included in other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome" xlink:to="lab_ifrs-full_IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TemporaryDifferenceMember_019c29a6-4798-735c-ac0b-71e4e0113970_terseLabel_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Temporary differences</link:label>
    <link:label id="lab_ifrs-full_TemporaryDifferenceMember_label_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Temporary differences [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TemporaryDifferenceMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TemporaryDifferenceMember" xlink:to="lab_ifrs-full_TemporaryDifferenceMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherSchemesMember_019c29a6-48ae-7e4d-91e3-7ef7d5f87133_terseLabel_en-US" xlink:label="lab_bbplc_OtherSchemesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Others</link:label>
    <link:label id="lab_bbplc_OtherSchemesMember_label_en-US" xlink:label="lab_bbplc_OtherSchemesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Schemes [Member]</link:label>
    <link:label id="lab_bbplc_OtherSchemesMember_documentation_en-US" xlink:label="lab_bbplc_OtherSchemesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The member represents other schemes, included are Sharesave (both UK and overseas), Sharepurchase (both UK and overseas), the Barclays' Long Term Incentive Plan, and the Share Incentive Award.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherSchemesMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherSchemesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherSchemesMember" xlink:to="lab_bbplc_OtherSchemesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_019c29a6-4798-743d-8266-d52c25ea67b8_terseLabel_en-US" xlink:label="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of reasonably possible decrease in actuarial assumption</link:label>
    <link:label id="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_label_en-US" xlink:label="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of reasonably possible decrease in actuarial assumption</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:to="lab_ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods_019c29a6-49d1-7e3a-b1a6-389709d3283a_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments in respect of prior years</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for deferred tax of prior periods</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xlink:to="lab_ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory_019c29a6-48ae-7e6a-89da-6ef08a2d3caa_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of share-based payment schemes</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RepoRateShareOptionsGranted_019c29a6-4828-7096-9315-3628ccd28546_terseLabel_en-US" xlink:label="lab_bbplc_RepoRateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repo rates</link:label>
    <link:label id="lab_bbplc_RepoRateShareOptionsGranted_label_en-US" xlink:label="lab_bbplc_RepoRateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repo Rate, Share Options Granted</link:label>
    <link:label id="lab_bbplc_RepoRateShareOptionsGranted_documentation_en-US" xlink:label="lab_bbplc_RepoRateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Repo Rate, Share Options Granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RepoRateShareOptionsGranted" xlink:href="bbplc-20251231.xsd#bbplc_RepoRateShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RepoRateShareOptionsGranted" xlink:to="lab_bbplc_RepoRateShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember_019c29a6-48ae-7524-8f43-ff1b64f5f1ce_terseLabel_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.25% change in discount rate per annum</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember_label_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial Assumption Of Change In Discount Rate By Twenty Five Basis Points [Member]</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember_documentation_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Actuarial Assumption Of Change in Discount Rate by Twenty Five Basis Points.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember" xlink:href="bbplc-20251231.xsd#bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember" xlink:to="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByTwentyFiveBasisPointsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisposalsOfBusinessesAbstract_label_en-US" xlink:label="lab_bbplc_DisposalsOfBusinessesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals Of Businesses [Abstract]</link:label>
    <link:label id="lab_bbplc_DisposalsOfBusinessesAbstract_documentation_en-US" xlink:label="lab_bbplc_DisposalsOfBusinessesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposals Of Businesses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisposalsOfBusinessesAbstract" xlink:href="bbplc-20251231.xsd#bbplc_DisposalsOfBusinessesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisposalsOfBusinessesAbstract" xlink:to="lab_bbplc_DisposalsOfBusinessesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfContingentLiabilitiesDomain_019c29a6-4930-7e24-8814-80e7e2b7023b_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of contingent liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfContingentLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of contingent liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfContingentLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock_019c29a6-4828-70b5-9b47-045f9f3f18b0_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in associates and joint ventures</link:label>
    <link:label id="lab_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Investments In Associates And Joint Ventures [Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The entire disclosure investments in associates and joint ventures.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock" xlink:to="lab_bbplc_DisclosureOfInvestmentsInAssociatesAndJointVenturesTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseThroughRedemptionOfPreferenceShares_019c29a6-4798-7ca9-9d14-1c749c04463a_negatedTerseLabel_en-US" xlink:label="lab_bbplc_DecreaseThroughRedemptionOfPreferenceShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Redemption of preference shares</link:label>
    <link:label id="lab_bbplc_DecreaseThroughRedemptionOfPreferenceShares_label_en-US" xlink:label="lab_bbplc_DecreaseThroughRedemptionOfPreferenceShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Redemption of Preference Shares</link:label>
    <link:label id="lab_bbplc_DecreaseThroughRedemptionOfPreferenceShares_documentation_en-US" xlink:label="lab_bbplc_DecreaseThroughRedemptionOfPreferenceShares" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Redemption of Preference Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseThroughRedemptionOfPreferenceShares" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseThroughRedemptionOfPreferenceShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseThroughRedemptionOfPreferenceShares" xlink:to="lab_bbplc_DecreaseThroughRedemptionOfPreferenceShares" xlink:type="arc" order="1"/>
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    <link:label id="lab_dei_DocumentShellCompanyReport_label_en-US" xlink:label="lab_dei_DocumentShellCompanyReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Shell Company Report</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfOtherProvisionsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other provisions [line items]</link:label>
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    <link:label id="lab_ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset_019c29a6-4931-78b9-af0e-175b638909ca_terseLabel_en-US" xlink:label="lab_ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employer contribution</link:label>
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    <link:label id="lab_ifrs-full_OtherPriceRiskMember_019c29a6-49d1-79d8-a60d-e9a51c937178_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inflation risk</link:label>
    <link:label id="lab_ifrs-full_OtherPriceRiskMember_label_en-US" xlink:label="lab_ifrs-full_OtherPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other price risk [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherPriceRiskMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherPriceRiskMember"/>
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    <link:label id="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of other comprehensive income by item [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory"/>
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    <link:label id="lab_ifrs-full_AverageNumberOfEmployees_019c29a6-4828-726b-a34a-f57c1d876019_terseLabel_en-US" xlink:label="lab_ifrs-full_AverageNumberOfEmployees" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average number of employees (headcount)</link:label>
    <link:label id="lab_ifrs-full_AverageNumberOfEmployees_label_en-US" xlink:label="lab_ifrs-full_AverageNumberOfEmployees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Average number of employees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AverageNumberOfEmployees" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AverageNumberOfEmployees"/>
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    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory_019c29a6-4828-7259-923a-08fb58948346_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transfers of financial assets that do not result in derecognition</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transferred financial assets that are not derecognised in their entirety [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_019c29a6-48ae-7258-b2b9-b050c8a2e8c6_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for derivatives</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for derivative financial instruments and hedging [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsAndHedgingExplanatory"/>
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    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedgesContinuingHedges_019c29a6-48ae-7373-bf7e-91be06d5dd3c_negatedLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedgesContinuingHedges" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Balance in cash flow hedging reserve for continuing hedges</link:label>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedgesContinuingHedges_label_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedgesContinuingHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of cash flow hedges, continuing hedges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfCashFlowHedgesContinuingHedges" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfCashFlowHedgesContinuingHedges"/>
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    <link:label id="lab_bbplc_NumberOfLongevityReinsuranceContracts_019c29a6-4930-7739-bd08-4ae80457d465_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfLongevityReinsuranceContracts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of longevity reinsurance contracts</link:label>
    <link:label id="lab_bbplc_NumberOfLongevityReinsuranceContracts_label_en-US" xlink:label="lab_bbplc_NumberOfLongevityReinsuranceContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Longevity Reinsurance Contracts</link:label>
    <link:label id="lab_bbplc_NumberOfLongevityReinsuranceContracts_documentation_en-US" xlink:label="lab_bbplc_NumberOfLongevityReinsuranceContracts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Longevity Reinsurance Contracts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfLongevityReinsuranceContracts" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfLongevityReinsuranceContracts"/>
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    <link:label id="lab_ifrs-full_ActuarialAssumptionOfDiscountRates_019c29a6-4931-7a42-b659-c43587a292c8_terseLabel_en-US" xlink:label="lab_ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discount rate</link:label>
    <link:label id="lab_ifrs-full_ActuarialAssumptionOfDiscountRates_label_en-US" xlink:label="lab_ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial assumption of discount rates</link:label>
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    <link:label id="lab_ifrs-full_TypesOfFinancialLiabilitiesAxis_019c29a6-4828-7e66-9646-9ca9b3a1df4c_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of financial liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfFinancialLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of financial liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfFinancialLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfFinancialLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_TypesOfFinancialLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InfrastructureAdministrationAndGeneralExpenses_019c29a6-4798-7ded-b78b-a1fc2124e3d8_totalLabel_en-US" xlink:label="lab_bbplc_InfrastructureAdministrationAndGeneralExpenses" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total infrastructure, administration and general expenses</link:label>
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    <link:label id="lab_bbplc_InfrastructureAdministrationAndGeneralExpenses_documentation_en-US" xlink:label="lab_bbplc_InfrastructureAdministrationAndGeneralExpenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Infrastructure, Administration And General Expenses</link:label>
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    <link:label id="lab_bbplc_OtherIncomeExpense_019c29a6-49d1-72d5-82b8-643b3dd26bd1_terseLabel_en-US" xlink:label="lab_bbplc_OtherIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-interest income</link:label>
    <link:label id="lab_bbplc_OtherIncomeExpense_label_en-US" xlink:label="lab_bbplc_OtherIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Income (Expense)</link:label>
    <link:label id="lab_bbplc_OtherIncomeExpense_documentation_en-US" xlink:label="lab_bbplc_OtherIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Income (Expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherIncomeExpense" xlink:href="bbplc-20251231.xsd#bbplc_OtherIncomeExpense"/>
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    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill_019c29a6-4930-7ca2-8eaf-a4461e07e902_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Disposals</link:label>
    <link:label id="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsIntangibleAssetsAndGoodwill"/>
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    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_019c29a6-49d1-7d00-80df-f3328ae07445_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncome"/>
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    <link:label id="lab_bbplc_NetExposureToCreditRisk_019c29a6-4931-7e8a-9d92-117c708f4efe_totalLabel_en-US" xlink:label="lab_bbplc_NetExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Exposure net of risk mitigation</link:label>
    <link:label id="lab_bbplc_NetExposureToCreditRisk_label_en-US" xlink:label="lab_bbplc_NetExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Exposure To Credit Risk</link:label>
    <link:label id="lab_bbplc_NetExposureToCreditRisk_documentation_en-US" xlink:label="lab_bbplc_NetExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The net amount of exposure to credit risk.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NetExposureToCreditRisk" xlink:href="bbplc-20251231.xsd#bbplc_NetExposureToCreditRisk"/>
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    <link:label id="lab_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory_019c29a6-49d1-7c2c-b772-0c93bd2e0499_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subordinated liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSubordinatedLiabilitiesExplanatory"/>
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    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_019c29a6-4828-7390-9031-ca32cbfb4f16_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill and intangible assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of intangible assets and goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsAndGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_019c29a6-4930-751c-a645-af01e55d1471_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting of Barclays PLC shares under share-based payment schemes</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through exercise of options, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughExerciseOfOptions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughExerciseOfOptions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_019c29a6-48ae-7698-b463-afa8fd12493c_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total gains and losses in the period recognised in the income statement, assets</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:to="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember_019c29a6-4828-7218-be6d-e20e740b1539_terseLabel_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category other income</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember_label_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Fair Value Through Profit Or Loss, Category Other Income [Member]</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember_documentation_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the financial liabilities at fair value through profit or loss category, located in other income. [Refer: Financial liabilities at fair value through profit or loss]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:to="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherPensionSchemesMember_019c29a6-4828-7259-9918-699d6f942041_terseLabel_en-US" xlink:label="lab_bbplc_OtherPensionSchemesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbplc_OtherPensionSchemesMember_label_en-US" xlink:label="lab_bbplc_OtherPensionSchemesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Pension Schemes [Member]</link:label>
    <link:label id="lab_bbplc_OtherPensionSchemesMember_documentation_en-US" xlink:label="lab_bbplc_OtherPensionSchemesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a number of smaller pension and long-term employee benefits and post-retirement healthcare plans globally.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherPensionSchemesMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherPensionSchemesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherPensionSchemesMember" xlink:to="lab_bbplc_OtherPensionSchemesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CoBrandedCardPortfolioMember_019c29a6-4798-7835-b4a6-0e701b27512e_terseLabel_en-US" xlink:label="lab_bbplc_CoBrandedCardPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Co-branded card portfolio</link:label>
    <link:label id="lab_bbplc_CoBrandedCardPortfolioMember_label_en-US" xlink:label="lab_bbplc_CoBrandedCardPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Co-Branded Card Portfolio [Member]</link:label>
    <link:label id="lab_bbplc_CoBrandedCardPortfolioMember_documentation_en-US" xlink:label="lab_bbplc_CoBrandedCardPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Co-Branded Card Portfolio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CoBrandedCardPortfolioMember" xlink:href="bbplc-20251231.xsd#bbplc_CoBrandedCardPortfolioMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CoBrandedCardPortfolioMember" xlink:to="lab_bbplc_CoBrandedCardPortfolioMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax_019c29a6-4827-7a2d-b5ec-f0b32e546f5e_verboseLabel_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Amount recycled from OCI due to sale of investment, or cash flows no longer expected to occur, hedges of net investments in foreign operations</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax_label_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification Adjustments On Hedges Of Net Investments In Foreign Operations For Which Hedged Future Cash Flows Are No Longer Expected To Occur, Net Of Tax</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax_documentation_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of reclassification adjustments on hedges of net investments in foreign operations for which the hedged future cash flows are no longer expected to occur, net of tax.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:href="bbplc-20251231.xsd#bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:to="lab_bbplc_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherTemporaryDifferencesMember_019c29a6-48ae-78a6-9cc6-247a2a7c20a9_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherTemporaryDifferencesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other temporary differences</link:label>
    <link:label id="lab_ifrs-full_OtherTemporaryDifferencesMember_label_en-US" xlink:label="lab_ifrs-full_OtherTemporaryDifferencesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other temporary differences [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherTemporaryDifferencesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherTemporaryDifferencesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherTemporaryDifferencesMember" xlink:to="lab_ifrs-full_OtherTemporaryDifferencesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReservesWithinEquityLineItems_019c29a6-4931-7fba-a51b-cf0a9eccca47_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesWithinEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReservesWithinEquityLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesWithinEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReservesWithinEquityLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReservesWithinEquityLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReservesWithinEquityLineItems" xlink:to="lab_ifrs-full_DisclosureOfReservesWithinEquityLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RentDeferredIncome_019c29a6-49d1-792d-8381-1089e408d949_verboseLabel_en-US" xlink:label="lab_ifrs-full_RentDeferredIncome" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities (refer to Note 19)</link:label>
    <link:label id="lab_ifrs-full_RentDeferredIncome_label_en-US" xlink:label="lab_ifrs-full_RentDeferredIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Rent deferred income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RentDeferredIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RentDeferredIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RentDeferredIncome" xlink:to="lab_ifrs-full_RentDeferredIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock_019c29a6-4931-7555-abf9-22a123a6786c_terseLabel_en-US" xlink:label="lab_bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of investments in associates and joint ventures</link:label>
    <link:label id="lab_bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock_label_en-US" xlink:label="lab_bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Detailed Information About Investments In Associates And Joint Ventures [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of detailed information about investments in associates and joint ventures.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DetailedInformationAboutInvestmentsInAssociatesAndJointVenturesTableTextBlock"/>
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    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_019c29a6-4931-7f0c-ab5f-fe2c0333361e_terseLabel_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash-generating units [domain]</link:label>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain_label_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash-generating units [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesDomain"/>
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    <link:label id="lab_bbplc_NetInvestmentIncomeExpense_019c29a6-4828-7ee6-89ef-79115234ac77_verboseLabel_en-US" xlink:label="lab_bbplc_NetInvestmentIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net investment (expense)/income</link:label>
    <link:label id="lab_bbplc_NetInvestmentIncomeExpense_019c29a6-4828-7f62-99a1-1eaa92371343_totalLabel_en-US" xlink:label="lab_bbplc_NetInvestmentIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net investment (expense)/income</link:label>
    <link:label id="lab_bbplc_NetInvestmentIncomeExpense_label_en-US" xlink:label="lab_bbplc_NetInvestmentIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Investment Income (Expense)</link:label>
    <link:label id="lab_bbplc_NetInvestmentIncomeExpense_documentation_en-US" xlink:label="lab_bbplc_NetInvestmentIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of income or (expense) arising from investments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NetInvestmentIncomeExpense" xlink:href="bbplc-20251231.xsd#bbplc_NetInvestmentIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NetInvestmentIncomeExpense" xlink:to="lab_bbplc_NetInvestmentIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems_019c29a6-48ae-7d18-8880-4a9d694951e7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of unconsolidated structured entities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of unconsolidated structured entities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MemberNominatedDirectorMember_019c29a6-4828-7190-b366-62b11b18f511_terseLabel_en-US" xlink:label="lab_bbplc_MemberNominatedDirectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Member nominated director</link:label>
    <link:label id="lab_bbplc_MemberNominatedDirectorMember_label_en-US" xlink:label="lab_bbplc_MemberNominatedDirectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Member Nominated Director [Member]</link:label>
    <link:label id="lab_bbplc_MemberNominatedDirectorMember_documentation_en-US" xlink:label="lab_bbplc_MemberNominatedDirectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Member Nominated Director</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MemberNominatedDirectorMember" xlink:href="bbplc-20251231.xsd#bbplc_MemberNominatedDirectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MemberNominatedDirectorMember" xlink:to="lab_bbplc_MemberNominatedDirectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfEmployees_019c29a6-49d1-7895-b36f-8e179f39bd96_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfEmployees" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of employees (full time equivalent)</link:label>
    <link:label id="lab_ifrs-full_NumberOfEmployees_label_en-US" xlink:label="lab_ifrs-full_NumberOfEmployees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of employees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfEmployees" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfEmployees"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfEmployees" xlink:to="lab_ifrs-full_NumberOfEmployees" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct_019c29a6-48ae-7dfa-9446-3ef247b0460b_negatedTerseLabel_en-US" xlink:label="lab_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Operating costs</link:label>
    <link:label id="lab_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct_label_en-US" xlink:label="lab_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Expenses Excluding Regulatory Levies, Litigation And Conduct</link:label>
    <link:label id="lab_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct_documentation_en-US" xlink:label="lab_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating Expenses Excluding Regulatory Levies, Litigation And Conduct</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct" xlink:href="bbplc-20251231.xsd#bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct" xlink:to="lab_bbplc_OperatingExpensesExcludingRegulatoryLeviesLitigationAndConduct" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_019c29a6-48ae-7349-8dac-4340e360e763_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019c29a6-4931-723a-8865-d632613f0e09_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share of post-tax results of associates and joint ventures</link:label>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of profit (loss) of associates and joint ventures accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SellingGeneralAndAdministrativeExpense_019c29a6-48ae-7944-a1f3-fa4f1f152b32_negatedLabel_en-US" xlink:label="lab_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Administration and general expenses</link:label>
    <link:label id="lab_ifrs-full_SellingGeneralAndAdministrativeExpense_019c29a6-48ae-7433-987f-d1e7ab9f82f9_totalLabel_en-US" xlink:label="lab_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total administration and general expenses</link:label>
    <link:label id="lab_ifrs-full_SellingGeneralAndAdministrativeExpense_label_en-US" xlink:label="lab_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, general and administrative expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SellingGeneralAndAdministrativeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:to="lab_ifrs-full_SellingGeneralAndAdministrativeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_019c29a6-48ae-7e6a-a36f-19d963ece0ed_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NotLaterThanThreeMonthsMember_019c29a6-48ae-7eb7-a29a-51ac10412470_terseLabel_en-US" xlink:label="lab_ifrs-full_NotLaterThanThreeMonthsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Not later than three months</link:label>
    <link:label id="lab_ifrs-full_NotLaterThanThreeMonthsMember_label_en-US" xlink:label="lab_ifrs-full_NotLaterThanThreeMonthsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Not later than three months [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotLaterThanThreeMonthsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotLaterThanThreeMonthsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotLaterThanThreeMonthsMember" xlink:to="lab_ifrs-full_NotLaterThanThreeMonthsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGoodwillExplanatory_019c29a6-4798-7d7b-8014-25a21a67b820_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of goodwill allocated to business operations according to business segments</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges_019c29a6-48ae-7446-9e74-cb58272b55f9_terseLabel_en-US" xlink:label="lab_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial instrument which hedge net investments</link:label>
    <link:label id="lab_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges_label_en-US" xlink:label="lab_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instrument Which Hedge Net Investments, Hedges</link:label>
    <link:label id="lab_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges_documentation_en-US" xlink:label="lab_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Instrument Which Hedge Net Investments, Hedges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges" xlink:href="bbplc-20251231.xsd#bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges" xlink:to="lab_bbplc_FinancialInstrumentWhichHedgeNetInvestmentsHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialInstrumentsAxis_019c29a6-4798-7bb9-b180-51800432504c_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial instruments [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialInstrumentsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial instruments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ShareValuePlanMember_019c3071-4b5c-78a3-aa08-b28fabd0ec30_terseLabel_en-US" xlink:label="lab_bbplc_ShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Value Plan</link:label>
    <link:label id="lab_bbplc_ShareValuePlanMember_label_en-US" xlink:label="lab_bbplc_ShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Value Plan [Member]</link:label>
    <link:label id="lab_bbplc_ShareValuePlanMember_documentation_en-US" xlink:label="lab_bbplc_ShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share Value Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ShareValuePlanMember" xlink:href="bbplc-20251231.xsd#bbplc_ShareValuePlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ShareValuePlanMember" xlink:to="lab_bbplc_ShareValuePlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss_019c29a6-4930-767a-930b-9a098b854fc3_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Recoveries and reimbursements</link:label>
    <link:label id="lab_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reversal of impairment loss recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_ReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HedgedItemsNet_019c29a6-4828-7b9a-a368-4f21b36d0b2f_totalLabel_en-US" xlink:label="lab_bbplc_HedgedItemsNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total hedged items</link:label>
    <link:label id="lab_bbplc_HedgedItemsNet_label_en-US" xlink:label="lab_bbplc_HedgedItemsNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedged Items, Net</link:label>
    <link:label id="lab_bbplc_HedgedItemsNet_documentation_en-US" xlink:label="lab_bbplc_HedgedItemsNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of a hedged item, recognised as an assets less liabilities. [Refer: Hedged items [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HedgedItemsNet" xlink:href="bbplc-20251231.xsd#bbplc_HedgedItemsNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HedgedItemsNet" xlink:to="lab_bbplc_HedgedItemsNet" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductOrServiceAxis_019c29a6-48ae-7071-be34-a8e628079e3a_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:label id="lab_srt_ProductOrServiceAxis_label_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductOrServiceAxis" xlink:to="lab_srt_ProductOrServiceAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember_019c29a6-48ae-7261-bf01-875c30005768_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.60 to 2.15%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Point Sixty To Two Point One Five Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale retail lending with a default grade betweeen 12 and 14. A probability of default between 0.60% and 2.15%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultPointSixtyToTwoPointOneFivePercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsAxis_019c29a6-4930-7170-a5cb-cbaac0d16b64_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial assets [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossLeaseLiabilities_019c29a6-4930-7cc1-9d38-46df7a17625a_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total undiscounted lease liabilities</link:label>
    <link:label id="lab_ifrs-full_GrossLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_GrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossLeaseLiabilities" xlink:to="lab_ifrs-full_GrossLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DebtInstrumentsHeldAtAmortisedCost_019c29a6-4931-77d7-9880-d38bdcc7186d_verboseLabel_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsHeldAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Debt securities at amortised cost</link:label>
    <link:label id="lab_ifrs-full_DebtInstrumentsHeldAtAmortisedCost_019c29a6-4931-7ef3-abb7-d28b1be2ff0c_terseLabel_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsHeldAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt instruments held at amortised cost</link:label>
    <link:label id="lab_ifrs-full_DebtInstrumentsHeldAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsHeldAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt instruments held at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtInstrumentsHeldAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsHeldAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DebtInstrumentsHeldAtAmortisedCost" xlink:to="lab_ifrs-full_DebtInstrumentsHeldAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_019c29a6-4798-7352-b321-1c4b411764f5_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for financial instruments at fair value</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for financial instruments at fair value through profit or loss [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedges_019c29a6-4828-7693-8296-609ba61f613d_periodStartLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedges" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Reserve of cash flow hedges, beginning of period</link:label>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedges_019c29a6-4828-7eed-9d6d-109c2a07ea84_periodEndLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedges" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Reserve of cash flow hedges, end of period</link:label>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedges_label_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of cash flow hedges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfCashFlowHedges" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfCashFlowHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfCashFlowHedges" xlink:to="lab_ifrs-full_ReserveOfCashFlowHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeAxis_019c29a6-49d1-7c1e-bd5d-1931227bf1ea_terseLabel_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:label id="lab_srt_RangeAxis_label_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeAxis" xlink:to="lab_srt_RangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember_019c29a6-4930-7d69-90eb-dd0fe08d96a7_terseLabel_en-US" xlink:label="lab_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2030</link:label>
    <link:label id="lab_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember_label_en-US" xlink:label="lab_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later Than Five Years And Not Later Than Six Years [Member]</link:label>
    <link:label id="lab_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember_documentation_en-US" xlink:label="lab_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a time band of later than five years and not later than six years.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:href="bbplc-20251231.xsd#bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:to="lab_bbplc_LaterThanFiveYearsAndNotLaterThanSixYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ItalianRetailMarketPortfolioMember_019c29a6-4798-776c-ab84-c708171f42b1_terseLabel_en-US" xlink:label="lab_bbplc_ItalianRetailMarketPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Italian retail market portfolio</link:label>
    <link:label id="lab_bbplc_ItalianRetailMarketPortfolioMember_label_en-US" xlink:label="lab_bbplc_ItalianRetailMarketPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Italian Retail Market Portfolio [Member]</link:label>
    <link:label id="lab_bbplc_ItalianRetailMarketPortfolioMember_documentation_en-US" xlink:label="lab_bbplc_ItalianRetailMarketPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Italian Retail Market Portfolio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ItalianRetailMarketPortfolioMember" xlink:href="bbplc-20251231.xsd#bbplc_ItalianRetailMarketPortfolioMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ItalianRetailMarketPortfolioMember" xlink:to="lab_bbplc_ItalianRetailMarketPortfolioMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfAssetsAxis_019c29a6-4798-7453-99cb-ea47fddcd873_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of assets [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsAxis" xlink:to="lab_ifrs-full_ClassesOfAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OperatingSegmentsMember_019c29a6-49d1-76be-9aee-0be345a4da76_terseLabel_en-US" xlink:label="lab_ifrs-full_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating segments</link:label>
    <link:label id="lab_ifrs-full_OperatingSegmentsMember_label_en-US" xlink:label="lab_ifrs-full_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating segments [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingSegmentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingSegmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingSegmentsMember" xlink:to="lab_ifrs-full_OperatingSegmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows_019c29a6-48ae-7089-81a3-ebedb35c7f58_terseLabel_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio liabilities, undiscounted</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows_label_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Fair Value Through Profit Or Loss That Meet Definition Of Held For Trading, Undiscounted Cash Flows</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows_documentation_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to financial liabilities at fair value through profit or loss that meet definition of held for trading.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows" xlink:href="bbplc-20251231.xsd#bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows" xlink:to="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_019c29a6-48ae-7403-8532-e24b74e29020_verboseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Four to five years</link:label>
    <link:label id="lab_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_019c29a6-48ae-711b-8bfc-bfa86de7c58a_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2029</link:label>
    <link:label id="lab_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than four years and not later than five years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:to="lab_ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue_019c29a6-4828-7938-89e9-0f96a5cdfa79_terseLabel_en-US" xlink:label="lab_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Damages sought</link:label>
    <link:label id="lab_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue_label_en-US" xlink:label="lab_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Contingency, Damages Sought, Claimed Amounts, Value</link:label>
    <link:label id="lab_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue_documentation_en-US" xlink:label="lab_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The monetary value of the award the plaintiff seeks in the legal matter, in addition to any interest, costs, and punitive damages.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue" xlink:href="bbplc-20251231.xsd#bbplc_LossContingencyDamagesSoughtClaimedAmountsValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue" xlink:to="lab_bbplc_LossContingencyDamagesSoughtClaimedAmountsValue" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TermAtWhichScenarioConvergesToSteadyState_019c29a6-4828-78ee-a767-146cae53e3de_terseLabel_en-US" xlink:label="lab_bbplc_TermAtWhichScenarioConvergesToSteadyState" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Term at which scenario converges to steady state</link:label>
    <link:label id="lab_bbplc_TermAtWhichScenarioConvergesToSteadyState_label_en-US" xlink:label="lab_bbplc_TermAtWhichScenarioConvergesToSteadyState" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Term At Which Scenario Converges To Steady State</link:label>
    <link:label id="lab_bbplc_TermAtWhichScenarioConvergesToSteadyState_documentation_en-US" xlink:label="lab_bbplc_TermAtWhichScenarioConvergesToSteadyState" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The term all five scenarios of model to calculate expected credit losses converge to a steady state.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TermAtWhichScenarioConvergesToSteadyState" xlink:href="bbplc-20251231.xsd#bbplc_TermAtWhichScenarioConvergesToSteadyState"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TermAtWhichScenarioConvergesToSteadyState" xlink:to="lab_bbplc_TermAtWhichScenarioConvergesToSteadyState" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_019c29a6-4828-71f5-aec4-b0f521feeba7_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:to="lab_ifrs-full_IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RangeAxis_019c29a6-4828-7061-9a72-0ac733394a1f_terseLabel_en-US" xlink:label="lab_ifrs-full_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Range [axis]</link:label>
    <link:label id="lab_ifrs-full_RangeAxis_label_en-US" xlink:label="lab_ifrs-full_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RangeAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangeAxis" xlink:to="lab_ifrs-full_RangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FixedInterestRateMember_019c29a6-4828-76c3-a335-96e8eb44abe2_terseLabel_en-US" xlink:label="lab_ifrs-full_FixedInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed interest rate</link:label>
    <link:label id="lab_ifrs-full_FixedInterestRateMember_label_en-US" xlink:label="lab_ifrs-full_FixedInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed interest rate [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FixedInterestRateMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FixedInterestRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FixedInterestRateMember" xlink:to="lab_ifrs-full_FixedInterestRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_019c29a6-4798-7f06-b2be-dc2d4092d272_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities designated at fair value</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock_019c29a6-48ae-777a-9e95-5b69f129bf1d_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of total derivatives</link:label>
    <link:label id="lab_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Summary Of Derivative Assets And Liabilities [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure summarizing derivative financial assets and liabilities of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock" xlink:to="lab_bbplc_DisclosureOfSummaryOfDerivativeAssetsAndLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_019c29a6-48ae-76fd-bac6-789186fc1f33_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Profit/(loss) before tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_019c29a6-48ae-7fce-a224-2719b1c3ccf4_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Profit before tax</link:label>
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    <link:label id="lab_ifrs-full_ProfitLossBeforeTax_label_en-US" xlink:label="lab_ifrs-full_ProfitLossBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss) before tax</link:label>
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    <link:label id="lab_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from losing control of subsidiaries or other businesses, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
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    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances_019c29a6-4930-74dc-9da2-bedfa9a8a4f1_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net (increase)/decrease in loans and advances at amortised cost</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances_019c29a6-4930-7a40-85b5-36dd924ca528_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (increase)/decrease in loans and advances at amortised cost</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in loans and advances</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInLoansAndAdvances"/>
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    <link:label id="lab_bbplc_RecurringItemsPercentagesAbstract_019c29a6-4828-73c4-9dab-58e823bc2e82_terseLabel_en-US" xlink:label="lab_bbplc_RecurringItemsPercentagesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recurring items, percentages</link:label>
    <link:label id="lab_bbplc_RecurringItemsPercentagesAbstract_label_en-US" xlink:label="lab_bbplc_RecurringItemsPercentagesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recurring Items, Percentages [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RecurringItemsPercentagesAbstract" xlink:href="bbplc-20251231.xsd#bbplc_RecurringItemsPercentagesAbstract"/>
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    <link:label id="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_019c29a6-4931-706b-b328-0b9cc762aa55_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of AT1 equity instruments</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of share capital, reserves and other equity interest [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory"/>
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    <link:label id="lab_bbplc_AuditFeeRelatingToPreviousYearMember_019c29a6-4930-77c7-b877-232206aeaa51_terseLabel_en-US" xlink:label="lab_bbplc_AuditFeeRelatingToPreviousYearMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Audit fee relating to previous year</link:label>
    <link:label id="lab_bbplc_AuditFeeRelatingToPreviousYearMember_label_en-US" xlink:label="lab_bbplc_AuditFeeRelatingToPreviousYearMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Audit Fee Relating To Previous Year [Member]</link:label>
    <link:label id="lab_bbplc_AuditFeeRelatingToPreviousYearMember_documentation_en-US" xlink:label="lab_bbplc_AuditFeeRelatingToPreviousYearMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Audit Fee Relating To Previous Year</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AuditFeeRelatingToPreviousYearMember" xlink:href="bbplc-20251231.xsd#bbplc_AuditFeeRelatingToPreviousYearMember"/>
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    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_019c29a6-4930-797d-8269-911f21b647ab_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow statement</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for cash flows [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForCashFlowsExplanatory"/>
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    <link:label id="lab_ifrs-full_JointVenturesMember_019c29a6-4828-748f-896a-67ae399687c9_terseLabel_en-US" xlink:label="lab_ifrs-full_JointVenturesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint ventures</link:label>
    <link:label id="lab_ifrs-full_JointVenturesMember_label_en-US" xlink:label="lab_ifrs-full_JointVenturesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total for all joint ventures [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_JointVenturesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesMember"/>
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    <link:label id="lab_ifrs-full_DisclosureOfOtherProvisionsTable_019c29a6-4798-745d-b615-bc38e80c0a0e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of other provisions [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOtherProvisionsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other provisions [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsTable"/>
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    <link:label id="lab_ifrs-full_ClassesOfFinancialInstrumentsDomain_019c29a6-4930-7d42-8bb3-7778ad001d93_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial instruments [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialInstrumentsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial instruments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialInstrumentsDomain"/>
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    <link:label id="lab_ifrs-full_MaximumExposureToLossFromInterestsInStructuredEntities_019c29a6-4798-71d2-8e75-c96ad1166429_totalLabel_en-US" xlink:label="lab_ifrs-full_MaximumExposureToLossFromInterestsInStructuredEntities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Maximum exposure to loss</link:label>
    <link:label id="lab_ifrs-full_MaximumExposureToLossFromInterestsInStructuredEntities_label_en-US" xlink:label="lab_ifrs-full_MaximumExposureToLossFromInterestsInStructuredEntities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum exposure to loss from interests in structured entities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaximumExposureToLossFromInterestsInStructuredEntities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaximumExposureToLossFromInterestsInStructuredEntities"/>
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    <link:label id="lab_bbplc_YieldMeasurementInputMember_019c29a6-48ae-7140-bf4d-55628b2f820b_terseLabel_en-US" xlink:label="lab_bbplc_YieldMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Yield</link:label>
    <link:label id="lab_bbplc_YieldMeasurementInputMember_label_en-US" xlink:label="lab_bbplc_YieldMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Yield, Measurement Input [Member]</link:label>
    <link:label id="lab_bbplc_YieldMeasurementInputMember_documentation_en-US" xlink:label="lab_bbplc_YieldMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Yield, Measurement Input</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_YieldMeasurementInputMember" xlink:href="bbplc-20251231.xsd#bbplc_YieldMeasurementInputMember"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseInExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContractsAbstract_019c29a6-4828-7441-a821-353457cd4a9d_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loan commitments and financial guarantee contracts</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContractsAbstract_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContractsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in exposure to credit risk on loan commitments and financial guarantee contracts [abstract]</link:label>
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    <link:label id="lab_ifrs-full_ReductionOfIssuedCapital_019c29a6-49d1-7553-982e-13828fdba86d_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ReductionOfIssuedCapital" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">AT1 securities redemption</link:label>
    <link:label id="lab_ifrs-full_ReductionOfIssuedCapital_label_en-US" xlink:label="lab_ifrs-full_ReductionOfIssuedCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reduction of issued capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReductionOfIssuedCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReductionOfIssuedCapital"/>
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    <link:label id="lab_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_019c29a6-49d1-7849-83f1-3a34c8bbfc20_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest received, classified as operating activities</link:label>
    <link:label id="lab_ifrs-full_InterestReceivedClassifiedAsOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest received, classified as operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestReceivedClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestReceivedClassifiedAsOperatingActivities"/>
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    <link:label id="lab_ifrs-full_ProductsAndServicesDomain_019c29a6-4828-72d0-9b14-2149aa037df5_terseLabel_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Products and services [domain]</link:label>
    <link:label id="lab_ifrs-full_ProductsAndServicesDomain_label_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Products and services [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProductsAndServicesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesDomain"/>
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    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory_019c29a6-48ae-7ac4-a70f-c571344ffadc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of results by business</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [text block]</link:label>
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    <link:label id="lab_bbplc_A525FixedRateSubordinatedNotesDue2045Member_019c29a6-4798-7be8-8627-8a6557d379b7_terseLabel_en-US" xlink:label="lab_bbplc_A525FixedRateSubordinatedNotesDue2045Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.25% Fixed Rate Subordinated Notes (USD 827m)</link:label>
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    <link:label id="lab_bbplc_A525FixedRateSubordinatedNotesDue2045Member_documentation_en-US" xlink:label="lab_bbplc_A525FixedRateSubordinatedNotesDue2045Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 5.25% Subordinated Notes, maturing in 2045 and denominated in United States of America, Dollars currency.</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A525FixedRateSubordinatedNotesDue2045Member" xlink:to="lab_bbplc_A525FixedRateSubordinatedNotesDue2045Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_019c29a6-4828-7a17-a64b-250c5a4df16c_totalLabel_en-US" xlink:label="lab_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Value in use</link:label>
    <link:label id="lab_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_019c29a6-4828-7dc0-ac76-686ea3faece8_terseLabel_en-US" xlink:label="lab_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Value in use</link:label>
    <link:label id="lab_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit_label_en-US" xlink:label="lab_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recoverable amount of asset or cash-generating unit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecoverableAmountOfAssetOrCashgeneratingUnit"/>
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    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_019c29a6-48ae-7cab-90f9-3c8ed1918b13_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of movements on deferred tax assets and liabilities during the year before offsetting</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialLiabilitiesSubjectToOffsettingMember_019c29a6-48ae-7ff2-a7fe-f2458a5cea2a_terseLabel_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesSubjectToOffsettingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesSubjectToOffsettingMember_label_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesSubjectToOffsettingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities Subject To Offsetting [Member]</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesSubjectToOffsettingMember_documentation_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesSubjectToOffsettingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Liabilities Subject To Offsetting</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialLiabilitiesSubjectToOffsettingMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialLiabilitiesSubjectToOffsettingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialLiabilitiesSubjectToOffsettingMember" xlink:to="lab_bbplc_FinancialLiabilitiesSubjectToOffsettingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember_019c29a6-49d1-799c-9dff-ca831792c9c3_terseLabel_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, category trading</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember_label_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Fair Value Through Profit Or Loss, Category Trading [Member]</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember_documentation_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the financial liabilities at fair value through profit or loss category, located in trading income. [Refer: Financial liabilities at fair value through profit or loss]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:to="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock_019c29a6-49d1-7057-844c-f709fe2071df_terseLabel_en-US" xlink:label="lab_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">New and amended standards and interpretations</link:label>
    <link:label id="lab_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock_label_en-US" xlink:label="lab_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description Of Accounting Policy For New And Amended Standards And Interpretations [Policy Text Block]</link:label>
    <link:label id="lab_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock_documentation_en-US" xlink:label="lab_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Description Of Accounting Policy For New And Amended Standards And Interpretations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock" xlink:to="lab_bbplc_DescriptionOfAccountingPolicyForNewAndAmendedStandardsAndInterpretationsPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherReserves_019c29a6-49d1-7e8c-bb19-e5220b2c37fc_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherReserves" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other reserves</link:label>
    <link:label id="lab_ifrs-full_OtherReserves_019c29a6-49d1-7940-8fc7-99abd91557d0_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherReserves" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_OtherReserves_label_en-US" xlink:label="lab_ifrs-full_OtherReserves" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other reserves</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReserves" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReserves"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherReserves" xlink:to="lab_ifrs-full_OtherReserves" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock_019c29a6-4798-7550-9afc-2dd37b7ede08_terseLabel_en-US" xlink:label="lab_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summarised financial information, equity accounted associates and joint ventures</link:label>
    <link:label id="lab_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock_label_en-US" xlink:label="lab_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Summarised Financial Information Associates And Joint Ventures [Table Text Block]</link:label>
    <link:label id="lab_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of detailed information on equity accounted associates and joint ventures.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock" xlink:to="lab_bbplc_SummarisedFinancialInformationAssociatesAndJointVenturesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InterestExpenseOnCashCollateral_019c29a6-48ae-79d7-8b88-d584c71c9913_negatedLabel_en-US" xlink:label="lab_bbplc_InterestExpenseOnCashCollateral" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cash collateral</link:label>
    <link:label id="lab_bbplc_InterestExpenseOnCashCollateral_label_en-US" xlink:label="lab_bbplc_InterestExpenseOnCashCollateral" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense On Cash Collateral</link:label>
    <link:label id="lab_bbplc_InterestExpenseOnCashCollateral_documentation_en-US" xlink:label="lab_bbplc_InterestExpenseOnCashCollateral" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Expense On Cash Collateral</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InterestExpenseOnCashCollateral" xlink:href="bbplc-20251231.xsd#bbplc_InterestExpenseOnCashCollateral"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InterestExpenseOnCashCollateral" xlink:to="lab_bbplc_InterestExpenseOnCashCollateral" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_019c29a6-49d1-7dda-bd99-f6eb5609b947_verboseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Treasury and other eligible bills with original maturity of three months or less</link:label>
    <link:label id="lab_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term investments, classified as cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermInvestmentsClassifiedAsCashEquivalents"/>
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    <link:label id="lab_bbplc_PersonalLoansMember_019c29a6-49d1-7bb4-a69c-5a5058c3b126_terseLabel_en-US" xlink:label="lab_bbplc_PersonalLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Personal Loans</link:label>
    <link:label id="lab_bbplc_PersonalLoansMember_label_en-US" xlink:label="lab_bbplc_PersonalLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Personal Loans [Member]</link:label>
    <link:label id="lab_bbplc_PersonalLoansMember_documentation_en-US" xlink:label="lab_bbplc_PersonalLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Personal Loans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PersonalLoansMember" xlink:href="bbplc-20251231.xsd#bbplc_PersonalLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PersonalLoansMember" xlink:to="lab_bbplc_PersonalLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LoanCommitmentsMember_019c29a6-48ae-7da5-9b8c-14546961734a_netLabel_en-US" xlink:label="lab_ifrs-full_LoanCommitmentsMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Loan commitments</link:label>
    <link:label id="lab_ifrs-full_LoanCommitmentsMember_019c29a6-48ae-7ab7-a387-1c82c7956d22_verboseLabel_en-US" xlink:label="lab_ifrs-full_LoanCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loan liabilities</link:label>
    <link:label id="lab_ifrs-full_LoanCommitmentsMember_019c29a6-48ae-7ae8-a41b-79782335f36c_terseLabel_en-US" xlink:label="lab_ifrs-full_LoanCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments</link:label>
    <link:label id="lab_ifrs-full_LoanCommitmentsMember_label_en-US" xlink:label="lab_ifrs-full_LoanCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loan commitments [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoanCommitmentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoanCommitmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoanCommitmentsMember" xlink:to="lab_ifrs-full_LoanCommitmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_019c29a6-4828-7920-b71a-897a2f2e7303_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of options exercisable (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options exercisable in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract_019c29a6-4931-79c4-bc62-8b1269f0fcd0_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in subsidiaries, joint ventures and associates [abstract]</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract_label_en-US" xlink:label="lab_ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" xlink:to="lab_ifrs-full_InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets_019c29a6-49d1-7ac7-9f41-8e32ea859fb7_verboseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Refinements to models used for calculation</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through changes in models or risk parameters, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInModelsOrRiskParametersFinancialAssets"/>
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    <link:label id="lab_bbplc_FixedToFloatingInterestRateMember_019c29a6-49d1-70c5-b494-ae141f568a1e_terseLabel_en-US" xlink:label="lab_bbplc_FixedToFloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed-to-Floating Interest Rate</link:label>
    <link:label id="lab_bbplc_FixedToFloatingInterestRateMember_label_en-US" xlink:label="lab_bbplc_FixedToFloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed-To-Floating Interest Rate [Member]</link:label>
    <link:label id="lab_bbplc_FixedToFloatingInterestRateMember_documentation_en-US" xlink:label="lab_bbplc_FixedToFloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the conversion of interest rates from fixed to floating interest rate.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FixedToFloatingInterestRateMember" xlink:href="bbplc-20251231.xsd#bbplc_FixedToFloatingInterestRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FixedToFloatingInterestRateMember" xlink:to="lab_bbplc_FixedToFloatingInterestRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting_019c29a6-4930-761e-810b-ddfec4dfc5c5_negatedPeriodStartLabel_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="resource" xml:lang="en-US">Assets (liabilities), beginning balance</link:label>
    <link:label id="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting_019c29a6-4930-7934-993a-26946c678bbe_negatedPeriodEndLabel_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="resource" xml:lang="en-US">Assets (liabilities), ending balance</link:label>
    <link:label id="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting_label_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liability (Asset), Before Offsetting</link:label>
    <link:label id="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting_documentation_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of deferred tax liabilities or assets before offsetting asset and liability balances where there is a legal right to set-off and an intention to settle on a net basis.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting" xlink:href="bbplc-20251231.xsd#bbplc_DeferredTaxLiabilityAssetBeforeOffsetting"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting" xlink:to="lab_bbplc_DeferredTaxLiabilityAssetBeforeOffsetting" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BankRateMember_019c29a6-4798-7f0e-a5c1-34bb0b8d6fe4_terseLabel_en-US" xlink:label="lab_bbplc_BankRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bank rate</link:label>
    <link:label id="lab_bbplc_BankRateMember_label_en-US" xlink:label="lab_bbplc_BankRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank Rate [Member]</link:label>
    <link:label id="lab_bbplc_BankRateMember_documentation_en-US" xlink:label="lab_bbplc_BankRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for bank rate.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BankRateMember" xlink:href="bbplc-20251231.xsd#bbplc_BankRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BankRateMember" xlink:to="lab_bbplc_BankRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_019c29a6-49d1-7685-952f-a9a5f3d6016e_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash from financing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService_019c29a6-4828-79a1-9155-777badf63348_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of final decisions by the UK FCO</link:label>
    <link:label id="lab_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService_label_en-US" xlink:label="lab_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Final Decisions By The UK Financial Ombudsman Service</link:label>
    <link:label id="lab_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService_documentation_en-US" xlink:label="lab_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Final Decisions By The UK Financial Ombudsman Service</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService" xlink:to="lab_bbplc_NumberOfFinalDecisionsByTheUKFinancialOmbudsmanService" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CounterpartiesAxis_019c29a6-48ae-7b37-8571-7e6001b4346b_terseLabel_en-US" xlink:label="lab_ifrs-full_CounterpartiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparties [axis]</link:label>
    <link:label id="lab_ifrs-full_CounterpartiesAxis_label_en-US" xlink:label="lab_ifrs-full_CounterpartiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparties [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CounterpartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CounterpartiesAxis" xlink:to="lab_ifrs-full_CounterpartiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PreferenceSharesMember_019c29a6-49d1-7652-83ff-887d00d89c34_terseLabel_en-US" xlink:label="lab_ifrs-full_PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference share capital</link:label>
    <link:label id="lab_ifrs-full_PreferenceSharesMember_label_en-US" xlink:label="lab_ifrs-full_PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference shares [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PreferenceSharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PreferenceSharesMember" xlink:to="lab_ifrs-full_PreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_019c29a6-4798-7219-b602-e227bdbfc905_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated depreciation and impairment</link:label>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_019c29a6-4798-7ffa-9cba-a5b82e012522_verboseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated amortisation and impairment</link:label>
    <link:label id="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember_label_en-US" xlink:label="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated depreciation, amortisation and impairment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:to="lab_ifrs-full_AccumulatedDepreciationAmortisationAndImpairmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_AsiaMember_019c29a6-48ae-7b18-ab02-5543f8e9148b_terseLabel_en-US" xlink:label="lab_srt_AsiaMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asia</link:label>
    <link:label id="lab_srt_AsiaMember_label_en-US" xlink:label="lab_srt_AsiaMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asia [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AsiaMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_AsiaMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_AsiaMember" xlink:to="lab_srt_AsiaMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PlanAssetsAtFairValue_019c29a6-49d1-760c-a6c6-37d6369dd672_totalLabel_en-US" xlink:label="lab_ifrs-full_PlanAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Fair value of scheme assets</link:label>
    <link:label id="lab_ifrs-full_PlanAssetsAtFairValue_label_en-US" xlink:label="lab_ifrs-full_PlanAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan assets, at fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PlanAssetsAtFairValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PlanAssetsAtFairValue" xlink:to="lab_ifrs-full_PlanAssetsAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityTable_019c29a6-4931-7eb8-a682-b5ceeb428aaf_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [table]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityTable_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityTable" xlink:to="lab_ifrs-full_StatementOfChangesInEquityTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ActuarialAssumptionsAxis_019c29a6-4930-773f-904d-5e95fbc437f3_terseLabel_en-US" xlink:label="lab_ifrs-full_ActuarialAssumptionsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Actuarial assumptions [axis]</link:label>
    <link:label id="lab_ifrs-full_ActuarialAssumptionsAxis_label_en-US" xlink:label="lab_ifrs-full_ActuarialAssumptionsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial assumptions [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialAssumptionsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ActuarialAssumptionsAxis" xlink:to="lab_ifrs-full_ActuarialAssumptionsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember_019c29a6-49d1-763a-a3a0-16ea45dcacfa_terseLabel_en-US" xlink:label="lab_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Woori BC Pegasus Securitization Specialty Co. Ltd</link:label>
    <link:label id="lab_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember_label_en-US" xlink:label="lab_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Woori BC Pegasus Securitization Specialty Co. Ltd [Member]</link:label>
    <link:label id="lab_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember_documentation_en-US" xlink:label="lab_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Woori BC Pegasus Securitization Specialty Co. Ltd</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember" xlink:href="bbplc-20251231.xsd#bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember" xlink:to="lab_bbplc_WooriBCPegasusSecuritizationSpecialtyCo.LtdMember" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_CAD_019c29a6-4931-7c12-91a9-14d6eb58b12d_verboseLabel_en-US" xlink:label="lab_currency_CAD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">CAD</link:label>
    <link:label id="lab_currency_CAD_label_en-US" xlink:label="lab_currency_CAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Canada, Dollars</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_CAD" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_CAD"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_CAD" xlink:to="lab_currency_CAD" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember_019c29a6-4827-7501-8ac6-4f8cc2b919a8_terseLabel_en-US" xlink:label="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity volatility</link:label>
    <link:label id="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Historical volatility for shares, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xlink:to="lab_ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfAssetsDomain_019c29a6-49d1-774d-b092-25e31b997c88_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of assets [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfAssetsDomain" xlink:to="lab_ifrs-full_ClassesOfAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ExternalCustomersMember_019c29a6-4930-777a-a6ac-e3431ae25915_terseLabel_en-US" xlink:label="lab_bbplc_ExternalCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank PLC externally issued</link:label>
    <link:label id="lab_bbplc_ExternalCustomersMember_label_en-US" xlink:label="lab_bbplc_ExternalCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">External Customers [Member]</link:label>
    <link:label id="lab_bbplc_ExternalCustomersMember_documentation_en-US" xlink:label="lab_bbplc_ExternalCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for external customers of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ExternalCustomersMember" xlink:href="bbplc-20251231.xsd#bbplc_ExternalCustomersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ExternalCustomersMember" xlink:to="lab_bbplc_ExternalCustomersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HedgedLiabilitiesMember_019c29a6-4798-73d4-a93d-1cec751cb8b1_terseLabel_en-US" xlink:label="lab_bbplc_HedgedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedged liabilities</link:label>
    <link:label id="lab_bbplc_HedgedLiabilitiesMember_label_en-US" xlink:label="lab_bbplc_HedgedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedged Liabilities [Member]</link:label>
    <link:label id="lab_bbplc_HedgedLiabilitiesMember_documentation_en-US" xlink:label="lab_bbplc_HedgedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The hedged item, recognised as a liability. [Refer: Hedged items [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HedgedLiabilitiesMember" xlink:href="bbplc-20251231.xsd#bbplc_HedgedLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HedgedLiabilitiesMember" xlink:to="lab_bbplc_HedgedLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfHedgesDomain_019c29a6-49d1-7f7c-b67f-b35b3407532f_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of hedges [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfHedgesDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of hedges [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfHedgesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfHedgesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfHedgesDomain" xlink:to="lab_ifrs-full_TypesOfHedgesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AgricultureFoodAndForestProductsMember_019c29a6-4798-7a1e-a705-8277ffb50fb4_terseLabel_en-US" xlink:label="lab_bbplc_AgricultureFoodAndForestProductsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Agriculture, Food and Forest Products</link:label>
    <link:label id="lab_bbplc_AgricultureFoodAndForestProductsMember_label_en-US" xlink:label="lab_bbplc_AgricultureFoodAndForestProductsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Agriculture, Food And Forest Products [Member]</link:label>
    <link:label id="lab_bbplc_AgricultureFoodAndForestProductsMember_documentation_en-US" xlink:label="lab_bbplc_AgricultureFoodAndForestProductsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Agriculture, Food And Forest Products</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AgricultureFoodAndForestProductsMember" xlink:href="bbplc-20251231.xsd#bbplc_AgricultureFoodAndForestProductsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AgricultureFoodAndForestProductsMember" xlink:to="lab_bbplc_AgricultureFoodAndForestProductsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount_019c29a6-4930-7d81-97e3-e4f36ded2a0c_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change required to reduce headroom to zero</link:label>
    <link:label id="lab_ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount_label_en-US" xlink:label="lab_ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amount by which value assigned to key assumption must change in order for unit's recoverable amount to be equal to carrying amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount" xlink:to="lab_ifrs-full_AmountByWhichValueAssignedToKeyAssumptionMustChangeInOrderForUnitsRecoverableAmountToBeEqualToCarryingAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BottomOfRangeMember_019c29a6-4828-7d87-aa3e-710c21e99164_terseLabel_en-US" xlink:label="lab_ifrs-full_BottomOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Low</link:label>
    <link:label id="lab_ifrs-full_BottomOfRangeMember_019c29a6-4828-77df-99b0-4b582633afd3_verboseLabel_en-US" xlink:label="lab_ifrs-full_BottomOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Bottom of range</link:label>
    <link:label id="lab_ifrs-full_BottomOfRangeMember_019c29a6-4828-7970-963e-84a89c1b69ae_netLabel_en-US" xlink:label="lab_ifrs-full_BottomOfRangeMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Min</link:label>
    <link:label id="lab_ifrs-full_BottomOfRangeMember_label_en-US" xlink:label="lab_ifrs-full_BottomOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bottom of range [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BottomOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BottomOfRangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BottomOfRangeMember" xlink:to="lab_ifrs-full_BottomOfRangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesAxis_019c29a6-4798-7ce6-b0d9-05e6040f8999_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of related parties [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of related parties [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InterestsInOtherEntitiesAbstract_label_en-US" xlink:label="lab_bbplc_InterestsInOtherEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interests In Other Entities [Abstract]</link:label>
    <link:label id="lab_bbplc_InterestsInOtherEntitiesAbstract_documentation_en-US" xlink:label="lab_bbplc_InterestsInOtherEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interests In Other Entities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InterestsInOtherEntitiesAbstract" xlink:href="bbplc-20251231.xsd#bbplc_InterestsInOtherEntitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InterestsInOtherEntitiesAbstract" xlink:to="lab_bbplc_InterestsInOtherEntitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLoss_019c29a6-4798-7eb1-aa37-bb717e017ac8_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Profit after tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_019c29a6-4798-79b6-a3c2-967bdc4ebd25_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit after tax</link:label>
    <link:label id="lab_ifrs-full_ProfitLoss_label_en-US" xlink:label="lab_ifrs-full_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLoss" xlink:to="lab_ifrs-full_ProfitLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TypeOfUKRFObligationAxis_019c29a6-4798-7dd6-aab4-5f82cb30abbc_terseLabel_en-US" xlink:label="lab_bbplc_TypeOfUKRFObligationAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Type Of UKRF Obligation [Axis]</link:label>
    <link:label id="lab_bbplc_TypeOfUKRFObligationAxis_label_en-US" xlink:label="lab_bbplc_TypeOfUKRFObligationAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Type Of UKRF Obligation [Axis]</link:label>
    <link:label id="lab_bbplc_TypeOfUKRFObligationAxis_documentation_en-US" xlink:label="lab_bbplc_TypeOfUKRFObligationAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Type Of UKRF Obligation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TypeOfUKRFObligationAxis" xlink:href="bbplc-20251231.xsd#bbplc_TypeOfUKRFObligationAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TypeOfUKRFObligationAxis" xlink:to="lab_bbplc_TypeOfUKRFObligationAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_019c29a6-48ae-7ad1-a751-42bdb2564c29_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow hedges</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, net of tax, cash flow hedges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxCashFlowHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract_019c29a6-4930-772e-a3eb-b271b914594f_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value through other comprehensive income reserve movement relating to debt securities</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets measured at fair value through other comprehensive income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:to="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock_019c29a6-48ae-787f-911e-38fe1fc48c21_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of net investment (expense) / income</link:label>
    <link:label id="lab_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Net Investment Income [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of net fee and commission income. [Refer: Fee and commission income (expense)]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock" xlink:to="lab_bbplc_DisclosureOfNetInvestmentIncomeTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysBankSectionPlanMember_019c29a6-4798-7088-ad16-791ec5b43c19_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysBankSectionPlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank Section</link:label>
    <link:label id="lab_bbplc_BarclaysBankSectionPlanMember_label_en-US" xlink:label="lab_bbplc_BarclaysBankSectionPlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Bank Section Plan [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysBankSectionPlanMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysBankSectionPlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Bank Section Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysBankSectionPlanMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysBankSectionPlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysBankSectionPlanMember" xlink:to="lab_bbplc_BarclaysBankSectionPlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentRegistrationStatement_019c29a6-4798-75a5-b03d-577722dc6d02_terseLabel_en-US" xlink:label="lab_dei_DocumentRegistrationStatement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Registration Statement</link:label>
    <link:label id="lab_dei_DocumentRegistrationStatement_label_en-US" xlink:label="lab_dei_DocumentRegistrationStatement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Registration Statement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentRegistrationStatement" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentRegistrationStatement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentRegistrationStatement" xlink:to="lab_dei_DocumentRegistrationStatement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_019c29a6-4798-70bd-a534-4b95521229b3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segmental reporting</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of entity's operating segments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEntitysReportableSegmentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssociatesMember_019c29a6-4930-7b7a-9741-9eed6450fdb6_terseLabel_en-US" xlink:label="lab_ifrs-full_AssociatesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Associates</link:label>
    <link:label id="lab_ifrs-full_AssociatesMember_019c29a6-4930-7f6b-9bb9-9a21bf3d472a_verboseLabel_en-US" xlink:label="lab_ifrs-full_AssociatesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other related parties</link:label>
    <link:label id="lab_ifrs-full_AssociatesMember_label_en-US" xlink:label="lab_ifrs-full_AssociatesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total for all associates [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssociatesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssociatesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssociatesMember" xlink:to="lab_ifrs-full_AssociatesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_VestingPeriodFourMember_019c3071-4b5c-7520-ab95-358de3009cfd_terseLabel_en-US" xlink:label="lab_bbplc_VestingPeriodFourMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period four</link:label>
    <link:label id="lab_bbplc_VestingPeriodFourMember_label_en-US" xlink:label="lab_bbplc_VestingPeriodFourMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting Period Four [Member]</link:label>
    <link:label id="lab_bbplc_VestingPeriodFourMember_documentation_en-US" xlink:label="lab_bbplc_VestingPeriodFourMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Vesting Period Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VestingPeriodFourMember" xlink:href="bbplc-20251231.xsd#bbplc_VestingPeriodFourMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_VestingPeriodFourMember" xlink:to="lab_bbplc_VestingPeriodFourMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding_019c29a6-4827-7bcf-8252-b75949c9ee4c_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets written and subject to enforcement activity, contractual amount outstanding</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets written off during reporting period and still subject to enforcement activity, contractual amount outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding" xlink:to="lab_ifrs-full_FinancialAssetsWrittenOffDuringReportingPeriodAndStillSubjectToEnforcementActivityContractualAmountOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PresentValueOfDefinedBenefitObligationMember_019c29a6-48ae-7901-b77d-e0e19ca1dd3c_terseLabel_en-US" xlink:label="lab_ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit obligations</link:label>
    <link:label id="lab_ifrs-full_PresentValueOfDefinedBenefitObligationMember_019c29a6-48ae-7179-b56e-952e6bab2917_verboseLabel_en-US" xlink:label="lab_ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Defined benefit obligations</link:label>
    <link:label id="lab_ifrs-full_PresentValueOfDefinedBenefitObligationMember_label_en-US" xlink:label="lab_ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Present value of defined benefit obligation [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PresentValueOfDefinedBenefitObligationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:to="lab_ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfContingentLiabilitiesTable_019c29a6-48ae-7a6a-b37c-99995f427d67_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfContingentLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of contingent liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfContingentLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfContingentLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of contingent liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfContingentLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_019c29a6-49d1-7da9-bafa-7fe8a9525069_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for leases</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for leases [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfStructuredEntities_019c29a6-4930-79a9-a55b-5ae1cd0b299c_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfStructuredEntities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of structured entities</link:label>
    <link:label id="lab_bbplc_NumberOfStructuredEntities_label_en-US" xlink:label="lab_bbplc_NumberOfStructuredEntities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Structured Entities</link:label>
    <link:label id="lab_bbplc_NumberOfStructuredEntities_documentation_en-US" xlink:label="lab_bbplc_NumberOfStructuredEntities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Structured Entities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfStructuredEntities" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfStructuredEntities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfStructuredEntities" xlink:to="lab_bbplc_NumberOfStructuredEntities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember_019c29a6-4828-7672-89f6-890f57688ac5_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities not classified as held for sale [member]</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities not classified as held for sale [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:to="lab_ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncomeAbstract_019c29a6-48ae-7483-b166-e62e0e623322_terseLabel_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fee and commission income [abstract]</link:label>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fee and commission income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FeeAndCommissionIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FeeAndCommissionIncomeAbstract" xlink:to="lab_ifrs-full_FeeAndCommissionIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract_019c29a6-4798-7ff4-8381-1598ea607b0c_terseLabel_en-US" xlink:label="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Analysis of income and expense [abstract]</link:label>
    <link:label id="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Analysis of income and expense [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AnalysisOfIncomeAndExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:to="lab_ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax_019c29a6-49d1-7702-837d-6f4bc7adaa9b_terseLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain (loss) on recycling of currency translation differences</link:label>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax_label_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification adjustments on exchange differences on translation of foreign operations, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax" xlink:to="lab_ifrs-full_ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory_019c29a6-4930-7017-8a9d-9bf4e005a9c4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of actuarial valuation of schemes</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis for actuarial assumptions [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_BusinessContactMember_019c29a6-4931-7eb5-aab9-5c3440cecc7c_terseLabel_en-US" xlink:label="lab_dei_BusinessContactMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Contact</link:label>
    <link:label id="lab_dei_BusinessContactMember_label_en-US" xlink:label="lab_dei_BusinessContactMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Contact [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_BusinessContactMember" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_BusinessContactMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_BusinessContactMember" xlink:to="lab_dei_BusinessContactMember" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_GBP_019c29a6-49d1-7fc3-9684-4c2a7a1b09af_terseLabel_en-US" xlink:label="lab_currency_GBP" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GBP</link:label>
    <link:label id="lab_currency_GBP_019c29a6-49d1-762c-8322-f855171328d4_verboseLabel_en-US" xlink:label="lab_currency_GBP" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">GBP</link:label>
    <link:label id="lab_currency_GBP_label_en-US" xlink:label="lab_currency_GBP" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">United Kingdom, Pounds</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_GBP" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_GBP"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_GBP" xlink:to="lab_currency_GBP" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities_019c29a6-49d1-74b2-9be9-c5dd2169cd9a_negatedLabel_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Unfavourable changes, Income Statement</link:label>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities_label_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease In Fair Value Measurement Due To Change In Multiple Unobservable Inputs To Reflect Reasonably Possible Alternative Assumptions, Recognised In Profit Or Loss, After Tax, Assets (Liabilities)</link:label>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of decrease in the fair value measurement of assets (liabilities), recognised in profit or loss after tax, due to a change in multiple unobservable inputs to reflect reasonably possible alternative assumptions. [Refer: Tax income (expense)]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:to="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesAbstract_019c29a6-4827-762f-8294-d0762d2fdf09_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesAbstract_019c29a6-4827-72b3-be6a-426fd1e3503d_verboseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesAbstract" xlink:to="lab_ifrs-full_LiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BusinessAndOtherServicesMember_019c29a6-49d1-72e2-a164-55e4413038d2_terseLabel_en-US" xlink:label="lab_bbplc_BusinessAndOtherServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business and other services</link:label>
    <link:label id="lab_bbplc_BusinessAndOtherServicesMember_label_en-US" xlink:label="lab_bbplc_BusinessAndOtherServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business And Other Services [Member]</link:label>
    <link:label id="lab_bbplc_BusinessAndOtherServicesMember_documentation_en-US" xlink:label="lab_bbplc_BusinessAndOtherServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the business and other services industry.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BusinessAndOtherServicesMember" xlink:href="bbplc-20251231.xsd#bbplc_BusinessAndOtherServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BusinessAndOtherServicesMember" xlink:to="lab_bbplc_BusinessAndOtherServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation_019c29a6-4930-7321-b02e-a2617374f2d6_terseLabel_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible provisions for investigations and litigation, percentage</link:label>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation_label_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Non-Deductible Provisions For Investigations And Litigation</link:label>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation_documentation_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from non-deductible provisions for investigations and litigation. [Refer: Average effective tax rate; Applicable tax rate]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:href="bbplc-20251231.xsd#bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:to="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForInvestigationsAndLitigation" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProvisionsAbstract_019c29a6-4931-7dbf-9f1c-e2ad89999fa3_terseLabel_en-US" xlink:label="lab_ifrs-full_ProvisionsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions [abstract]</link:label>
    <link:label id="lab_ifrs-full_ProvisionsAbstract_label_en-US" xlink:label="lab_ifrs-full_ProvisionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provisions [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProvisionsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProvisionsAbstract" xlink:to="lab_ifrs-full_ProvisionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFeesMember_019c29a6-4931-7048-8d2d-9d1648535617_terseLabel_en-US" xlink:label="lab_bbplc_OtherFeesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbplc_OtherFeesMember_label_en-US" xlink:label="lab_bbplc_OtherFeesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Fees [Member]</link:label>
    <link:label id="lab_bbplc_OtherFeesMember_documentation_en-US" xlink:label="lab_bbplc_OtherFeesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for fees in scope of IFRS 15 not specifically covered by the above categories</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFeesMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherFeesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFeesMember" xlink:to="lab_bbplc_OtherFeesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CarryingAmountMember_019c29a6-4931-77f1-bacc-14c786624723_terseLabel_en-US" xlink:label="lab_ifrs-full_CarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount [member]</link:label>
    <link:label id="lab_ifrs-full_CarryingAmountMember_label_en-US" xlink:label="lab_ifrs-full_CarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Carrying amount [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountMember" xlink:to="lab_ifrs-full_CarryingAmountMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract_019c29a6-4827-7175-b8f0-a9dfba927477_terseLabel_en-US" xlink:label="lab_ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Designated financial liabilities at fair value through profit or loss [abstract]</link:label>
    <link:label id="lab_ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract_label_en-US" xlink:label="lab_ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Designated financial liabilities at fair value through profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:to="lab_ifrs-full_DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement2019_019c29a6-48ae-76ab-bb3e-0c9740c1eab9_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less: expired in the year, weighted average exercise price (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options expired in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement2019"/>
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    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember_019c29a6-48ae-750f-b12a-774d0ab0f134_terseLabel_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Civil actions in respect of the US Anti-Terrorism Act - EDNY</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember_label_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Civil Actions In Respect Of The US Anti-Terrorism Act - EDNY [Member]</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember_documentation_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Civil complaints against Barclays Bank PLC and other banks allege engagement in a conspiracy and violation of the US Anti-Terrorism Act (ATA).</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember" xlink:href="bbplc-20251231.xsd#bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember" xlink:to="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActEDNYMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnobservableInputsDomain_019c29a6-49d1-75c0-ae3a-89b5815fd3a2_terseLabel_en-US" xlink:label="lab_ifrs-full_UnobservableInputsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unobservable inputs [domain]</link:label>
    <link:label id="lab_ifrs-full_UnobservableInputsDomain_label_en-US" xlink:label="lab_ifrs-full_UnobservableInputsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unobservable inputs [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnobservableInputsDomain" xlink:to="lab_ifrs-full_UnobservableInputsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgedItemLiabilities_019c29a6-48ae-7577-b07f-fb2b67d5ac37_negatedLabel_en-US" xlink:label="lab_ifrs-full_HedgedItemLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Carrying amount, hedged liabilities</link:label>
    <link:label id="lab_ifrs-full_HedgedItemLiabilities_label_en-US" xlink:label="lab_ifrs-full_HedgedItemLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedged item, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgedItemLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgedItemLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgedItemLiabilities" xlink:to="lab_ifrs-full_HedgedItemLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncomeExpenseAbstract_019c29a6-4828-7c63-ad37-2944187f1301_terseLabel_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fee and commission income (expense) [abstract]</link:label>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncomeExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fee and commission income (expense) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionIncomeExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FeeAndCommissionIncomeExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FeeAndCommissionIncomeExpenseAbstract" xlink:to="lab_ifrs-full_FeeAndCommissionIncomeExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits_019c29a6-48ae-7bb8-b798-d6150c51a333_terseLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Salaries and other short-term benefits</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, short-term employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationShorttermEmployeeBenefits" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SecurityExchangeName_019c29a6-4828-7d35-bd11-8f374d266b61_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:label id="lab_dei_SecurityExchangeName_label_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember_019c29a6-48ae-7130-80e5-1ba0b3bd8c4b_terseLabel_en-US" xlink:label="lab_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">In years 11 to 20</link:label>
    <link:label id="lab_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember_label_en-US" xlink:label="lab_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later Than Eleven Years And Not Later Than Twenty Years [Member]</link:label>
    <link:label id="lab_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember_documentation_en-US" xlink:label="lab_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a time band of later than eleven years and not later than twenty years.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember" xlink:href="bbplc-20251231.xsd#bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember" xlink:to="lab_bbplc_LaterThanElevenYearsAndNotLaterThanTwentyYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities_019c29a6-4828-72a1-ac20-87276b5bb2e7_terseLabel_en-US" xlink:label="lab_ifrs-full_CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral pledged</link:label>
    <link:label id="lab_ifrs-full_CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash collateral pledged subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities"/>
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    <link:label id="lab_ifrs-full_MethodsOfGenerationAxis_019c29a6-48ae-70e7-87cf-2b121b4f742e_terseLabel_en-US" xlink:label="lab_ifrs-full_MethodsOfGenerationAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Methods of generation [axis]</link:label>
    <link:label id="lab_ifrs-full_MethodsOfGenerationAxis_label_en-US" xlink:label="lab_ifrs-full_MethodsOfGenerationAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Methods of generation [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodsOfGenerationAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodsOfGenerationAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MethodsOfGenerationAxis" xlink:to="lab_ifrs-full_MethodsOfGenerationAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets_019c29a6-4798-7ad1-a61f-52f6ea5d45dd_verboseLabel_en-US" xlink:label="lab_bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Impairment of property, equipment and intangible assets</link:label>
    <link:label id="lab_bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets_label_en-US" xlink:label="lab_bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment Loss Recognised in Profit Or Loss, Property Plant And Equipment And Intangible Assets</link:label>
    <link:label id="lab_bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets_documentation_en-US" xlink:label="lab_bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Impairment Loss Recognised in Profit Or Loss, Property Plant And Equipment And Intangible Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets" xlink:href="bbplc-20251231.xsd#bbplc_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentAndIntangibleAssets"/>
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    <link:label id="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents_019c29a6-4828-7352-8caa-d71ea13095e5_terseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances to banks with original maturity of three months or less</link:label>
    <link:label id="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term deposits, classified as cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:to="lab_ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetworkInfrastructureMember_019c29a6-4828-7e3c-baca-b6b29c23f46b_terseLabel_en-US" xlink:label="lab_ifrs-full_NetworkInfrastructureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Infrastructure</link:label>
    <link:label id="lab_ifrs-full_NetworkInfrastructureMember_label_en-US" xlink:label="lab_ifrs-full_NetworkInfrastructureMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Network infrastructure [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetworkInfrastructureMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetworkInfrastructureMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetworkInfrastructureMember" xlink:to="lab_ifrs-full_NetworkInfrastructureMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetAssetsLiabilities_019c29a6-4931-79b8-9ca9-7228b651a2e9_periodStartLabel_en-US" xlink:label="lab_ifrs-full_NetAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, Assets (liabilities) net</link:label>
    <link:label id="lab_ifrs-full_NetAssetsLiabilities_019c29a6-4931-747b-9bce-c2f7d7b01215_periodEndLabel_en-US" xlink:label="lab_ifrs-full_NetAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, Assets (liabilities) net</link:label>
    <link:label id="lab_ifrs-full_NetAssetsLiabilities_label_en-US" xlink:label="lab_ifrs-full_NetAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets (liabilities)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetAssetsLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetAssetsLiabilities" xlink:to="lab_ifrs-full_NetAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnconsolidatedStructuredEntitiesMember_019c29a6-48ae-7483-a92c-e0ac065e3483_verboseLabel_en-US" xlink:label="lab_ifrs-full_UnconsolidatedStructuredEntitiesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unconsolidated structured entities</link:label>
    <link:label id="lab_ifrs-full_UnconsolidatedStructuredEntitiesMember_019c29a6-48ae-7ac9-9de2-bf1f9c018e67_terseLabel_en-US" xlink:label="lab_ifrs-full_UnconsolidatedStructuredEntitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_UnconsolidatedStructuredEntitiesMember_label_en-US" xlink:label="lab_ifrs-full_UnconsolidatedStructuredEntitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total for all unconsolidated structured entities [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnconsolidatedStructuredEntitiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnconsolidatedStructuredEntitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnconsolidatedStructuredEntitiesMember" xlink:to="lab_ifrs-full_UnconsolidatedStructuredEntitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level2And3OfFairValueHierarchyMember_019c29a6-48ae-7ae1-815f-778da1196546_terseLabel_en-US" xlink:label="lab_ifrs-full_Level2And3OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unquoted</link:label>
    <link:label id="lab_ifrs-full_Level2And3OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level2And3OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 2 and 3 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level2And3OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2And3OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level2And3OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level2And3OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersToStage3Member_019c29a6-49d1-7e11-a2b5-327c0c720895_terseLabel_en-US" xlink:label="lab_bbplc_TransfersToStage3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers to Stage 3</link:label>
    <link:label id="lab_bbplc_TransfersToStage3Member_label_en-US" xlink:label="lab_bbplc_TransfersToStage3Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers To Stage 3 [Member]</link:label>
    <link:label id="lab_bbplc_TransfersToStage3Member_documentation_en-US" xlink:label="lab_bbplc_TransfersToStage3Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the transfers of financial assets to stage 3 credit impaired.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersToStage3Member" xlink:href="bbplc-20251231.xsd#bbplc_TransfersToStage3Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersToStage3Member" xlink:to="lab_bbplc_TransfersToStage3Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SecuritisationVehiclesMember_019c29a6-4828-7cef-8f92-5188c05f8f1c_terseLabel_en-US" xlink:label="lab_ifrs-full_SecuritisationVehiclesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Securitisation vehicles</link:label>
    <link:label id="lab_ifrs-full_SecuritisationVehiclesMember_019c29a6-4828-7d89-811a-70b0d74dd194_verboseLabel_en-US" xlink:label="lab_ifrs-full_SecuritisationVehiclesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Multi-seller conduit programme</link:label>
    <link:label id="lab_ifrs-full_SecuritisationVehiclesMember_label_en-US" xlink:label="lab_ifrs-full_SecuritisationVehiclesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securitisation vehicles [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SecuritisationVehiclesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SecuritisationVehiclesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SecuritisationVehiclesMember" xlink:to="lab_ifrs-full_SecuritisationVehiclesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsTable_019c29a6-4828-748e-9c9d-efad82cd6db3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of fair value of plan assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value of plan assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfPlanAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueOfPlanAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueOfPlanAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax_019c29a6-4930-7540-8b0a-b6e33fae78b2_terseLabel_en-US" xlink:label="lab_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedging (losses)/gains for the year</link:label>
    <link:label id="lab_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax_label_en-US" xlink:label="lab_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Cash Flow Hedges Excluding Exchange Differences, Before Tax</link:label>
    <link:label id="lab_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax_documentation_en-US" xlink:label="lab_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Cash Flow Hedges Excluding Exchange Differences, Before Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax" xlink:href="bbplc-20251231.xsd#bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax" xlink:to="lab_bbplc_GainsLossesOnCashFlowHedgesExcludingExchangeDifferencesBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory_019c29a6-48ae-79ec-a879-c17edacfcfec_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of income by geographic region</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:to="lab_ifrs-full_DisclosureOfGeographicalAreasExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValue_019c29a6-4828-70ff-8f28-e4425a5299a8_totalLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValue_019c29a6-4828-7fb1-8a29-84f80e222035_periodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValue_019c29a6-4828-708c-87da-57a15315ca2d_periodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValue_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets, at fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValue" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeMember_019c29a6-4828-709f-8521-bf9451c89569_terseLabel_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:label id="lab_srt_RangeMember_label_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeMember" xlink:to="lab_srt_RangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CommitmentsAndFinancialGuaranteeContractsMember_019c29a6-4828-797f-bc22-abe87f74fda1_terseLabel_en-US" xlink:label="lab_bbplc_CommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Off-balance sheet loan commitments and financial guarantee contracts</link:label>
    <link:label id="lab_bbplc_CommitmentsAndFinancialGuaranteeContractsMember_label_en-US" xlink:label="lab_bbplc_CommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments And Financial Guarantee Contracts [Member]</link:label>
    <link:label id="lab_bbplc_CommitmentsAndFinancialGuaranteeContractsMember_documentation_en-US" xlink:label="lab_bbplc_CommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commitments And Financial Guarantee Contracts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CommitmentsAndFinancialGuaranteeContractsMember" xlink:href="bbplc-20251231.xsd#bbplc_CommitmentsAndFinancialGuaranteeContractsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CommitmentsAndFinancialGuaranteeContractsMember" xlink:to="lab_bbplc_CommitmentsAndFinancialGuaranteeContractsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_019c29a6-49d1-747a-baf4-0a09a034f8c7_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current service cost</link:label>
    <link:label id="lab_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_019c29a6-49d1-7a92-ae6d-4b9b752dfdb4_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Current service cost</link:label>
    <link:label id="lab_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase in net defined benefit liability (asset) resulting from current service cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges_019c29a6-48ae-793e-86ee-aaf18a7e8ed8_negatedLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Decrease in financial instruments which hedge net investments</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Financial Instruments Which Hedge Net Investments, Hedges</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase (decrease) in financial instruments which hedge net investments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges" xlink:to="lab_bbplc_IncreaseDecreaseInFinancialInstrumentsWhichHedgeNetInvestmentsHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember_019c29a6-48ae-7bfa-a7de-f93a85538504_terseLabel_en-US" xlink:label="lab_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit cards, unsecured loans and other retail lending</link:label>
    <link:label id="lab_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember_label_en-US" xlink:label="lab_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Cards, Unsecured Loans And Other Retail Lending [Member]</link:label>
    <link:label id="lab_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember_documentation_en-US" xlink:label="lab_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a class of financial assets that represents credit cards, unsecured and other retail lending.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember" xlink:href="bbplc-20251231.xsd#bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember" xlink:to="lab_bbplc_CreditCardsUnsecuredLoansAndOtherRetailLendingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InterestIncomeForCashCollateral_019c29a6-4827-7aed-b76a-5d63d3a5ed17_terseLabel_en-US" xlink:label="lab_bbplc_InterestIncomeForCashCollateral" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral</link:label>
    <link:label id="lab_bbplc_InterestIncomeForCashCollateral_label_en-US" xlink:label="lab_bbplc_InterestIncomeForCashCollateral" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income For Cash Collateral</link:label>
    <link:label id="lab_bbplc_InterestIncomeForCashCollateral_documentation_en-US" xlink:label="lab_bbplc_InterestIncomeForCashCollateral" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Income For Cash Collateral</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InterestIncomeForCashCollateral" xlink:href="bbplc-20251231.xsd#bbplc_InterestIncomeForCashCollateral"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InterestIncomeForCashCollateral" xlink:to="lab_bbplc_InterestIncomeForCashCollateral" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostMember_019c29a6-4828-787a-ab64-e74b399266af_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost, class [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCostMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCostMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtAmortisedCostMember" xlink:to="lab_ifrs-full_FinancialAssetsAtAmortisedCostMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OperatingExpense_019c29a6-4798-7367-9131-a5c201534b1f_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_OperatingExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Operating expenses</link:label>
    <link:label id="lab_ifrs-full_OperatingExpense_019c29a6-4798-755d-9abb-d67f52d7bc1f_negatedLabel_en-US" xlink:label="lab_ifrs-full_OperatingExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Operating expenses</link:label>
    <link:label id="lab_ifrs-full_OperatingExpense_label_en-US" xlink:label="lab_ifrs-full_OperatingExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OperatingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingExpense" xlink:to="lab_ifrs-full_OperatingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill_019c29a6-49d1-7721-8576-1742d5cb2546_terseLabel_en-US" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortisation period</link:label>
    <link:label id="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Useful life measured as period of time, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_019c29a6-49d1-7ead-bb95-f9b25d78035a_negatedLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Exercised/released in the year (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options exercised in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities_019c29a6-4930-7fe0-8eb1-17669f6320a4_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expense relating to variable lease payments not included in measurement of lease liabilities</link:label>
    <link:label id="lab_ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense relating to variable lease payments not included in measurement of lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:to="lab_ifrs-full_ExpenseRelatingToVariableLeasePaymentsNotIncludedInMeasurementOfLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_019c29a6-4828-7d12-a303-943095a9d0d7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidation</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of basis of consolidation [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfBasisOfConsolidationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfBasisOfConsolidationExplanatory"/>
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    <link:label id="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_019c29a6-4828-7758-8c73-e368a3c90f87_terseLabel_en-US" xlink:label="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible expenses</link:label>
    <link:label id="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_label_en-US" xlink:label="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax effect of expense not deductible in determining taxable profit (tax loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:to="lab_ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentsInSubsidiaries_019c29a6-49d1-72ca-b15e-a1d71395ea17_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment in subsidiaries</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInSubsidiaries_label_en-US" xlink:label="lab_ifrs-full_InvestmentsInSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in subsidiaries reported in separate financial statements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInSubsidiaries" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentsInSubsidiaries" xlink:to="lab_ifrs-full_InvestmentsInSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember_019c29a6-48ae-763b-aa56-6a6240fe4c06_terseLabel_en-US" xlink:label="lab_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Originated and sold to third parties by acquired subsidiary</link:label>
    <link:label id="lab_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember_label_en-US" xlink:label="lab_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Originated And Sold To Third Parties By Acquired Subsidiary [Member]</link:label>
    <link:label id="lab_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember_documentation_en-US" xlink:label="lab_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for sales of loans originated and sold to third parties by mortgage originator affiliates of an entity that the Group acquired in 2007 (Acquired Subsidiary).</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember" xlink:href="bbplc-20251231.xsd#bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember" xlink:to="lab_bbplc_OriginatedAndSoldToThirdPartiesByAcquiredSubsidiaryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading_019c29a6-4930-7ba2-941a-a7e212f7b8ca_negatedLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Derivative liabilities held for trading</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading" xlink:to="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressesAddressTypeAxis_019c29a6-49d1-7db6-a72d-046403eb56b4_terseLabel_en-US" xlink:label="lab_dei_EntityAddressesAddressTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Addresses, Address Type [Axis]</link:label>
    <link:label id="lab_dei_EntityAddressesAddressTypeAxis_label_en-US" xlink:label="lab_dei_EntityAddressesAddressTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Addresses, Address Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressesAddressTypeAxis" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressesAddressTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressesAddressTypeAxis" xlink:to="lab_dei_EntityAddressesAddressTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipment_019c29a6-4931-749b-8e6b-1a3577082053_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipment" xlink:to="lab_ifrs-full_PropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherEquityInterest_019c29a6-49d1-7d74-9b3d-85ddf8fec7bf_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherEquityInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other equity instruments</link:label>
    <link:label id="lab_ifrs-full_OtherEquityInterest_019c29a6-49d1-7e47-baaa-d0305ef637ab_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherEquityInterest" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total AT1 equity instruments</link:label>
    <link:label id="lab_ifrs-full_OtherEquityInterest_label_en-US" xlink:label="lab_ifrs-full_OtherEquityInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other equity interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquityInterest" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEquityInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherEquityInterest" xlink:to="lab_ifrs-full_OtherEquityInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet_019c29a6-4828-7619-b68e-294bd77d0c03_terseLabel_en-US" xlink:label="lab_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issues, fair value measurement, assets (liabilities) net</link:label>
    <link:label id="lab_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet_label_en-US" xlink:label="lab_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issues, Fair Value Measurement, Assets (Liabilities), Net</link:label>
    <link:label id="lab_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet_documentation_en-US" xlink:label="lab_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase in fair value measurement of assets and liabilities resulting from issues of those assets and liabilities. [Refer: At fair value [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet" xlink:href="bbplc-20251231.xsd#bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet" xlink:to="lab_bbplc_IssuesFairValueMeasurementAssetsLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries_019c29a6-4930-77df-b0a2-3f416b7352aa_terseLabel_en-US" xlink:label="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment of Investments in subsidiaries</link:label>
    <link:label id="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries_019c29a6-4930-774e-b81f-e94f49109fb2_negatedTerseLabel_en-US" xlink:label="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Impairment of investments in subsidiaries</link:label>
    <link:label id="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries_label_en-US" xlink:label="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment Recognised In Investments In Subsidiaries</link:label>
    <link:label id="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries_documentation_en-US" xlink:label="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Impairment Recognised In Investments In Subsidiaries</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries" xlink:href="bbplc-20251231.xsd#bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries" xlink:to="lab_bbplc_ImpairmentRecognisedInInvestmentsInSubsidiaries" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised_019c29a6-4828-77b2-a77a-ae6ee5f4053e_negatedLabel_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Share-based payments &#8211; difference between awards granted and costs recognised</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised_label_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key Management Personnel Compensation Share-Based Payments Difference Between Awards Granted And Costs Recognised</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised_documentation_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of compensation to key management personnel in the form of Share-based payments - difference between awards granted and costs recognised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:href="bbplc-20251231.xsd#bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:to="lab_bbplc_KeyManagementPersonnelCompensationShareBasedPaymentsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashAndCashEquivalents1Member_019c42ca-72c9-7d05-9c14-0d3d9534d53c_terseLabel_en-US" xlink:label="lab_bbplc_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents1</link:label>
    <link:label id="lab_bbplc_CashAndCashEquivalents1Member_label_en-US" xlink:label="lab_bbplc_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents1 [Member]</link:label>
    <link:label id="lab_bbplc_CashAndCashEquivalents1Member_documentation_en-US" xlink:label="lab_bbplc_CashAndCashEquivalents1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the cash and cash equivalents.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashAndCashEquivalents1Member" xlink:href="bbplc-20251231.xsd#bbplc_CashAndCashEquivalents1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashAndCashEquivalents1Member" xlink:to="lab_bbplc_CashAndCashEquivalents1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows_019c29a6-49d1-7be7-b089-90b5d627dc2d_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial instruments, undiscounted</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities, undiscounted cash flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:to="lab_ifrs-full_DerivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019_019c29a6-49d1-7685-9d18-34c816c1cd4b_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average duration of the benefit payments reflected in defined benefit obligation, UKRF</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average duration of defined benefit obligation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019" xlink:to="lab_ifrs-full_WeightedAverageDurationOfDefinedBenefitObligation2019" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows_019c29a6-4931-76de-bffc-e2f33271ca86_terseLabel_en-US" xlink:label="lab_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities included in disposal groups classified as held for sale, undiscounted</link:label>
    <link:label id="lab_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows_label_en-US" xlink:label="lab_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities Included in Disposal Groups Classified as Held For Sale, Undiscounted Cash Flows</link:label>
    <link:label id="lab_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows_documentation_en-US" xlink:label="lab_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Liabilities Included in Disposal Groups Classified as Held For Sale, Undiscounted Cash Flows</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows" xlink:href="bbplc-20251231.xsd#bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows" xlink:to="lab_bbplc_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes_019c29a6-4931-7828-a58e-070c9169bdee_totalLabel_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Costs recognised for accounting purposes</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes_label_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key Management Personnel Compensation Costs Recognised For Accounting Purposes</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes_documentation_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of compensation to key management personnel in the form of costs recognised for accounting purposes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes" xlink:href="bbplc-20251231.xsd#bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes" xlink:to="lab_bbplc_KeyManagementPersonnelCompensationCostsRecognisedForAccountingPurposes" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherAssets_019c29a6-48ae-7532-893d-d837b4cb3b4d_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_ifrs-full_OtherAssets_label_en-US" xlink:label="lab_ifrs-full_OtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherAssets" xlink:to="lab_ifrs-full_OtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_019c29a6-4798-791d-81bd-6f72d2b31e30_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income/(loss) not recycled to profit or loss:</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level1OfFairValueHierarchyMember_019c29a6-4828-73f9-b4fe-ae7b04324a86_terseLabel_en-US" xlink:label="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level 1</link:label>
    <link:label id="lab_ifrs-full_Level1OfFairValueHierarchyMember_019c29a6-4828-7a4d-9a4e-01ce64b4939f_verboseLabel_en-US" xlink:label="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Quoted</link:label>
    <link:label id="lab_ifrs-full_Level1OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 1 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level1OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level1OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level1OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level1OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_019c29a6-4828-7a21-a612-b7b8f427400c_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Granted in the year (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options granted in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_019c29a6-48ae-7af1-ba26-fdfe7976879f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems_019c29a6-48ae-7f09-a74c-a8b2822f662f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" xlink:to="lab_ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UndrawnBorrowingFacilities_019c29a6-4931-77eb-b639-bbace2bc343b_terseLabel_en-US" xlink:label="lab_ifrs-full_UndrawnBorrowingFacilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Undrawn borrowing facilities</link:label>
    <link:label id="lab_ifrs-full_UndrawnBorrowingFacilities_label_en-US" xlink:label="lab_ifrs-full_UndrawnBorrowingFacilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Undrawn borrowing facilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UndrawnBorrowingFacilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UndrawnBorrowingFacilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UndrawnBorrowingFacilities" xlink:to="lab_ifrs-full_UndrawnBorrowingFacilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember_019c29a6-4798-73b0-83c1-4bbea86aa50c_terseLabel_en-US" xlink:label="lab_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">3.750% Fixed Rate Resetting Subordinated Callable Notes</link:label>
    <link:label id="lab_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember_label_en-US" xlink:label="lab_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">3.750% Fixed Rate Resetting Subordinated Callable Notes [Member]</link:label>
    <link:label id="lab_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember_documentation_en-US" xlink:label="lab_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">3.750% Fixed Rate Resetting Subordinated Callable Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember" xlink:href="bbplc-20251231.xsd#bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember" xlink:to="lab_bbplc_A3.750FixedRateResettingSubordinatedCallableNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DiscountRateMeasurementInputMember_019c29a6-4930-7e68-9f2a-60c628be7669_terseLabel_en-US" xlink:label="lab_ifrs-full_DiscountRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discount margin</link:label>
    <link:label id="lab_ifrs-full_DiscountRateMeasurementInputMember_019c29a6-4930-7793-837d-4ad933833f82_verboseLabel_en-US" xlink:label="lab_ifrs-full_DiscountRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Discount rate</link:label>
    <link:label id="lab_ifrs-full_DiscountRateMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_DiscountRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discount rate, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DiscountRateMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DiscountRateMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DiscountRateMeasurementInputMember" xlink:to="lab_ifrs-full_DiscountRateMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DepositLiabilitiesMember_019c29a6-4827-7f67-b7bd-035db9ca09aa_terseLabel_en-US" xlink:label="lab_bbplc_DepositLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits at amortised cost from banks and customers</link:label>
    <link:label id="lab_bbplc_DepositLiabilitiesMember_label_en-US" xlink:label="lab_bbplc_DepositLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposit Liabilities [Member]</link:label>
    <link:label id="lab_bbplc_DepositLiabilitiesMember_documentation_en-US" xlink:label="lab_bbplc_DepositLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposit Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DepositLiabilitiesMember" xlink:href="bbplc-20251231.xsd#bbplc_DepositLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DepositLiabilitiesMember" xlink:to="lab_bbplc_DepositLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysPensionSavingsPlanMember_019c29a6-4931-7690-b8a9-ea30011e981e_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysPensionSavingsPlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BPSP</link:label>
    <link:label id="lab_bbplc_BarclaysPensionSavingsPlanMember_label_en-US" xlink:label="lab_bbplc_BarclaysPensionSavingsPlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Pension Savings Plan [member]</link:label>
    <link:label id="lab_bbplc_BarclaysPensionSavingsPlanMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysPensionSavingsPlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a new UK pension scheme, the BPSP, was established to satisfy Auto Enrolment legislation.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysPensionSavingsPlanMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysPensionSavingsPlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysPensionSavingsPlanMember" xlink:to="lab_bbplc_BarclaysPensionSavingsPlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FixturesAndFittingsMember_019c29a6-4930-78db-a3ff-1aecbb2aa280_terseLabel_en-US" xlink:label="lab_ifrs-full_FixturesAndFittingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixtures and fittings and other equipment</link:label>
    <link:label id="lab_ifrs-full_FixturesAndFittingsMember_label_en-US" xlink:label="lab_ifrs-full_FixturesAndFittingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixtures and fittings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FixturesAndFittingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FixturesAndFittingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FixturesAndFittingsMember" xlink:to="lab_ifrs-full_FixturesAndFittingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativesNettingMember_019c29a6-4798-7f57-acfa-074e22ee3d3c_terseLabel_en-US" xlink:label="lab_bbplc_DerivativesNettingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net derivatives financial instruments</link:label>
    <link:label id="lab_bbplc_DerivativesNettingMember_label_en-US" xlink:label="lab_bbplc_DerivativesNettingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives, Netting [Member]</link:label>
    <link:label id="lab_bbplc_DerivativesNettingMember_documentation_en-US" xlink:label="lab_bbplc_DerivativesNettingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives, Netting</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativesNettingMember" xlink:href="bbplc-20251231.xsd#bbplc_DerivativesNettingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativesNettingMember" xlink:to="lab_bbplc_DerivativesNettingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset_019c29a6-48ae-7265-b1d8-648d4b5c201d_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Settlements</link:label>
    <link:label id="lab_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from gains (losses) arising from settlements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_GainsLossesArisingFromSettlementsNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
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    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_019c29a6-49d1-7f0b-aec7-d2f1f0d9b931_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_019c29a6-49d1-7e74-b6e6-6690c6cd2832_negatedLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Trading Portfolio Liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss that meet definition of held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityInstrumentsHeld_019c29a6-4930-727a-9ae5-692fe6845a1f_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityInstrumentsHeld" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity securities</link:label>
    <link:label id="lab_ifrs-full_EquityInstrumentsHeld_label_en-US" xlink:label="lab_ifrs-full_EquityInstrumentsHeld" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity instruments held</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInstrumentsHeld" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityInstrumentsHeld"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityInstrumentsHeld" xlink:to="lab_ifrs-full_EquityInstrumentsHeld" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract_019c29a6-4930-741d-ae69-ff4ac8fc1223_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in intangible assets and goodwill [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in intangible assets and goodwill [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInIntangibleAssetsAndGoodwillAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForProvisions_019c29a6-49d1-703e-956e-0ea537eda6d2_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForProvisions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions and pension charges</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForProvisions_019c29a6-49d1-71e2-81b1-0552a63681a2_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForProvisions" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Provisions and pensions charges/(credits)</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForProvisions_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForProvisions" xlink:to="lab_ifrs-full_AdjustmentsForProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain_019c29a6-4931-731d-a7b1-1f976e587c06_terseLabel_en-US" xlink:label="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Continuing involvement in derecognised financial assets by type of transfer [domain]</link:label>
    <link:label id="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain_label_en-US" xlink:label="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Continuing involvement in derecognised financial assets by type of transfer [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain" xlink:to="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges_019c29a6-4798-76b6-9660-4efca93bee2a_negatedLabel_en-US" xlink:label="lab_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Borrowings which hedge the net investments</link:label>
    <link:label id="lab_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges_label_en-US" xlink:label="lab_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings Which Hedge Net Investments, Hedges</link:label>
    <link:label id="lab_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges_documentation_en-US" xlink:label="lab_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of hedges classified as borrowings which hedge the net investments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges" xlink:href="bbplc-20251231.xsd#bbplc_BorrowingsWhichHedgeNetInvestmentsHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges" xlink:to="lab_bbplc_BorrowingsWhichHedgeNetInvestmentsHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_019c29a6-48ae-7dd2-afd1-4e05c20efc72_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for non-current assets held for sale and associated liabilities</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for non-current assets or disposal groups classified as held for sale [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory"/>
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    <link:label id="lab_bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease_019c29a6-48ae-7cf4-9895-cbe2e865bfe3_terseLabel_en-US" xlink:label="lab_bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in investment in subsidiaries</link:label>
    <link:label id="lab_bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease_label_en-US" xlink:label="lab_bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments In Subsidiaries Reported In Separate Financial Statements, Increase (Decrease)</link:label>
    <link:label id="lab_bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease_documentation_en-US" xlink:label="lab_bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investments in subsidiaries reported in separate financial statements, Increase (Decrease)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease" xlink:href="bbplc-20251231.xsd#bbplc_InvestmentsInSubsidiariesReportedInSeparateFinancialStatementsIncreaseDecrease"/>
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    <link:label id="lab_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember_019c29a6-48ae-72f4-9477-dbbd2a3a8219_terseLabel_en-US" xlink:label="lab_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exit price adjustments derived from market bid-offer spreads</link:label>
    <link:label id="lab_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember_label_en-US" xlink:label="lab_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exit Price Adjustments Derived From Market Bid-Offer Spreads [Member]</link:label>
    <link:label id="lab_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember_documentation_en-US" xlink:label="lab_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for exit price adjustments derived from market bid-offer spreads. The methodology for determining the bid-offer adjustment for a derivative portfolio involves calculating the net risk exposure by offsetting long and short positions by strike and term in accordance with the risk management and hedging strategy.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember" xlink:href="bbplc-20251231.xsd#bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember" xlink:to="lab_bbplc_ExitPriceAdjustmentsDerivedFromMarketBidOfferSpreadsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FullyLoadedCommonEquityTierOneCapitalMember_019c29a6-4828-71be-8029-715de8c0fe62_terseLabel_en-US" xlink:label="lab_bbplc_FullyLoadedCommonEquityTierOneCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CET1 capital</link:label>
    <link:label id="lab_bbplc_FullyLoadedCommonEquityTierOneCapitalMember_label_en-US" xlink:label="lab_bbplc_FullyLoadedCommonEquityTierOneCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fully Loaded Common Equity Tier One Capital [Member]</link:label>
    <link:label id="lab_bbplc_FullyLoadedCommonEquityTierOneCapitalMember_documentation_en-US" xlink:label="lab_bbplc_FullyLoadedCommonEquityTierOneCapitalMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the fully loaded CRD IV CET1 ratio. It is a measure of the capital strength and resilience of the entity.</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FullyLoadedCommonEquityTierOneCapitalMember" xlink:to="lab_bbplc_FullyLoadedCommonEquityTierOneCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilityAsset_019c29a6-49d1-7bf2-b985-fd34fe46a99c_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Net deferred tax</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxLiabilityAsset" xlink:to="lab_ifrs-full_DeferredTaxLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AssetsPercentage_019c29a6-48ae-7abb-84af-5580f7a649e4_terseLabel_en-US" xlink:label="lab_bbplc_AssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total assets, percentage</link:label>
    <link:label id="lab_bbplc_AssetsPercentage_label_en-US" xlink:label="lab_bbplc_AssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Percentage</link:label>
    <link:label id="lab_bbplc_AssetsPercentage_documentation_en-US" xlink:label="lab_bbplc_AssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of resources, expressed as a percentage: (a) controlled by the entity as a result of past events; and (b) from which future economic benefits are expected to flow to the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AssetsPercentage" xlink:href="bbplc-20251231.xsd#bbplc_AssetsPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AssetsPercentage" xlink:to="lab_bbplc_AssetsPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_019c29a6-4930-7983-b946-2086d6807976_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities designated at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_019c29a6-4930-7ec6-b09c-f98860b684e1_totalLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities designated at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_019c29a6-4930-7f70-9a65-e1df2b8ad42b_negatedLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities designated at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedAsUponInitialRecognition"/>
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    <link:label id="lab_ifrs-full_OtherAdjustmentsForNoncashItems_019c29a6-48ae-71a1-960f-15dc8abefd54_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherAdjustmentsForNoncashItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other non-cash movements including exchange rate movements</link:label>
    <link:label id="lab_ifrs-full_OtherAdjustmentsForNoncashItems_label_en-US" xlink:label="lab_ifrs-full_OtherAdjustmentsForNoncashItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other adjustments for non-cash items</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAdjustmentsForNoncashItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAdjustmentsForNoncashItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherAdjustmentsForNoncashItems" xlink:to="lab_ifrs-full_OtherAdjustmentsForNoncashItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HeldForTradingMember_019c29a6-4931-7934-9415-aa39b42d574f_terseLabel_en-US" xlink:label="lab_bbplc_HeldForTradingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held for trading</link:label>
    <link:label id="lab_bbplc_HeldForTradingMember_label_en-US" xlink:label="lab_bbplc_HeldForTradingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held For Trading [Member]</link:label>
    <link:label id="lab_bbplc_HeldForTradingMember_documentation_en-US" xlink:label="lab_bbplc_HeldForTradingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for financial instruments categorized as held for trading.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HeldForTradingMember" xlink:href="bbplc-20251231.xsd#bbplc_HeldForTradingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HeldForTradingMember" xlink:to="lab_bbplc_HeldForTradingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PercentageOfBenefitsAreExpectedToBePaid_019c29a6-4798-7796-b685-ef39279702d8_terseLabel_en-US" xlink:label="lab_bbplc_PercentageOfBenefitsAreExpectedToBePaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of benefits are expected to be paid</link:label>
    <link:label id="lab_bbplc_PercentageOfBenefitsAreExpectedToBePaid_label_en-US" xlink:label="lab_bbplc_PercentageOfBenefitsAreExpectedToBePaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Benefits Are Expected To Be Paid</link:label>
    <link:label id="lab_bbplc_PercentageOfBenefitsAreExpectedToBePaid_documentation_en-US" xlink:label="lab_bbplc_PercentageOfBenefitsAreExpectedToBePaid" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The percentage of benefits are expected to be paid.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PercentageOfBenefitsAreExpectedToBePaid" xlink:href="bbplc-20251231.xsd#bbplc_PercentageOfBenefitsAreExpectedToBePaid"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PercentageOfBenefitsAreExpectedToBePaid" xlink:to="lab_bbplc_PercentageOfBenefitsAreExpectedToBePaid" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncomeExpense_019c29a6-48ae-74af-b801-23770784db17_totalLabel_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net fee and commission income</link:label>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncomeExpense_label_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fee and commission income (expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FeeAndCommissionIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FeeAndCommissionIncomeExpense" xlink:to="lab_ifrs-full_FeeAndCommissionIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss_019c29a6-4828-71e9-9183-3f139e9158a9_verboseLabel_en-US" xlink:label="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Hedge ineffectiveness recognised in the income statement</link:label>
    <link:label id="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) on hedge ineffectiveness recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FairValueOfAssociatedFinancialLiabilities_019c29a6-4931-766e-8574-f5fd1f0e8492_negatedLabel_en-US" xlink:label="lab_ifrs-full_FairValueOfAssociatedFinancialLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Liabilities, fair value</link:label>
    <link:label id="lab_ifrs-full_FairValueOfAssociatedFinancialLiabilities_019c29a6-4931-75c4-ab9e-83fb3d035996_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_FairValueOfAssociatedFinancialLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Associated liabilities, fair value</link:label>
    <link:label id="lab_ifrs-full_FairValueOfAssociatedFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_FairValueOfAssociatedFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value of associated financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FairValueOfAssociatedFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FairValueOfAssociatedFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FairValueOfAssociatedFinancialLiabilities" xlink:to="lab_ifrs-full_FairValueOfAssociatedFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis_019c29a6-4931-74a5-9447-f6bf22c8d9aa_terseLabel_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units [axis]</link:label>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis_label_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Individual assets or cash-generating units [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:to="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_019c29a6-49d1-7cee-99f1-2ad61e860e3b_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Decrease)/Increase in defined benefit obligation</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:to="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities_019c29a6-49d1-771f-957c-7a1b1d1dc072_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Disposals</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through obtaining or losing control of subsidiaries or other businesses, liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LoanSpreadMeasurementInputMember_019c29a6-4828-7192-bad4-02dd7cfe5709_terseLabel_en-US" xlink:label="lab_bbplc_LoanSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loan spread</link:label>
    <link:label id="lab_bbplc_LoanSpreadMeasurementInputMember_label_en-US" xlink:label="lab_bbplc_LoanSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loan Spread, Measurement Input [Member]</link:label>
    <link:label id="lab_bbplc_LoanSpreadMeasurementInputMember_documentation_en-US" xlink:label="lab_bbplc_LoanSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loan Spread, Measurement Input</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LoanSpreadMeasurementInputMember" xlink:href="bbplc-20251231.xsd#bbplc_LoanSpreadMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LoanSpreadMeasurementInputMember" xlink:to="lab_bbplc_LoanSpreadMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember_019c29a6-4828-7d0e-906c-78481a6f83f4_terseLabel_en-US" xlink:label="lab_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL from debt securities at amortised cost</link:label>
    <link:label id="lab_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember_label_en-US" xlink:label="lab_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ECL From Debt Securities At Amortised Cost [Member]</link:label>
    <link:label id="lab_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember_documentation_en-US" xlink:label="lab_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ECL From Debt Securities At Amortised Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember" xlink:href="bbplc-20251231.xsd#bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember" xlink:to="lab_bbplc_ECLFromDebtSecuritiesAtAmortisedCostMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_019c29a6-4798-7926-82f9-e1d88f8d541e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities_019c29a6-48ae-751d-85d4-f1087475832d_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Favourable changes, Equity</link:label>
    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities_label_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase In Fair Value Measurement Due To Change In Multiple Unobservable Inputs To Reflect Reasonably Possible Alternative Assumptions, Recognised In OCI, After Tax, Assets (Liabilities)</link:label>
    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of increase in the fair value measurement of assets (liabilities), recognised in other comprehensive income after tax, due to a change in multiple unobservable inputs to reflect reasonably possible alternative assumptions. [Refer: Tax income (expense)]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:to="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityAbstract_019c29a6-48ae-729d-aec4-f6235cb1c4a3_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="lab_ifrs-full_StatementOfChangesInEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RetainedEarnings_019c29a6-4828-703f-9e4a-6f1bad03d865_terseLabel_en-US" xlink:label="lab_ifrs-full_RetainedEarnings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retained earnings</link:label>
    <link:label id="lab_ifrs-full_RetainedEarnings_label_en-US" xlink:label="lab_ifrs-full_RetainedEarnings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained earnings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarnings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarnings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetainedEarnings" xlink:to="lab_ifrs-full_RetainedEarnings" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MeasurementDomain_019c29a6-48ae-7aa1-9a3e-a02d24ed3ae2_terseLabel_en-US" xlink:label="lab_ifrs-full_MeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measurement [domain]</link:label>
    <link:label id="lab_ifrs-full_MeasurementDomain_label_en-US" xlink:label="lab_ifrs-full_MeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MeasurementDomain" xlink:to="lab_ifrs-full_MeasurementDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_019c29a6-4828-7a24-a1a6-c685ca0bec8d_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross amounts</link:label>
    <link:label id="lab_ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_label_en-US" xlink:label="lab_ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross financial assets subject to offsetting, enforceable master netting arrangements or similar agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:to="lab_ifrs-full_GrossFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DividendsOnOrdinarySharesAbstract_019c29a6-4827-74b5-b071-eb9a777ea954_terseLabel_en-US" xlink:label="lab_bbplc_DividendsOnOrdinarySharesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">11. Dividends on ordinary shares</link:label>
    <link:label id="lab_bbplc_DividendsOnOrdinarySharesAbstract_label_en-US" xlink:label="lab_bbplc_DividendsOnOrdinarySharesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends On Ordinary Shares [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DividendsOnOrdinarySharesAbstract" xlink:href="bbplc-20251231.xsd#bbplc_DividendsOnOrdinarySharesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DividendsOnOrdinarySharesAbstract" xlink:to="lab_bbplc_DividendsOnOrdinarySharesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnconsolidatedStructuredEntitiesDomain_019c29a6-4828-7755-bf52-fa2e9e9ed2b6_terseLabel_en-US" xlink:label="lab_ifrs-full_UnconsolidatedStructuredEntitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unconsolidated structured entities [domain]</link:label>
    <link:label id="lab_ifrs-full_UnconsolidatedStructuredEntitiesDomain_label_en-US" xlink:label="lab_ifrs-full_UnconsolidatedStructuredEntitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unconsolidated structured entities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnconsolidatedStructuredEntitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnconsolidatedStructuredEntitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnconsolidatedStructuredEntitiesDomain" xlink:to="lab_ifrs-full_UnconsolidatedStructuredEntitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PreferenceSharesInterestRate_019c29a6-49d1-713f-8c7e-6c9272a12e36_terseLabel_en-US" xlink:label="lab_bbplc_PreferenceSharesInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Preference shares interest rate</link:label>
    <link:label id="lab_bbplc_PreferenceSharesInterestRate_label_en-US" xlink:label="lab_bbplc_PreferenceSharesInterestRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference Shares, Interest Rate</link:label>
    <link:label id="lab_bbplc_PreferenceSharesInterestRate_documentation_en-US" xlink:label="lab_bbplc_PreferenceSharesInterestRate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preference Shares, Interest Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PreferenceSharesInterestRate" xlink:href="bbplc-20251231.xsd#bbplc_PreferenceSharesInterestRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PreferenceSharesInterestRate" xlink:to="lab_bbplc_PreferenceSharesInterestRate" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FiveYearAveragesMember_019c29a6-4828-7b7b-b2ee-d8a0738a9013_terseLabel_en-US" xlink:label="lab_bbplc_FiveYearAveragesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5-year averages</link:label>
    <link:label id="lab_bbplc_FiveYearAveragesMember_label_en-US" xlink:label="lab_bbplc_FiveYearAveragesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Five Year Averages [Member]</link:label>
    <link:label id="lab_bbplc_FiveYearAveragesMember_documentation_en-US" xlink:label="lab_bbplc_FiveYearAveragesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Average basis represents the average quarterly value of variables in the 20 quarter period with GDP and HPI based on yearly average and quarterly CAGRs respectively.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FiveYearAveragesMember" xlink:href="bbplc-20251231.xsd#bbplc_FiveYearAveragesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FiveYearAveragesMember" xlink:to="lab_bbplc_FiveYearAveragesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaximumExposureToCreditRisk_019c29a6-48ae-7d32-95df-0c02bba58c2b_terseLabel_en-US" xlink:label="lab_ifrs-full_MaximumExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances designated at fair value, attributable to credit risk, maximum exposure</link:label>
    <link:label id="lab_ifrs-full_MaximumExposureToCreditRisk_label_en-US" xlink:label="lab_ifrs-full_MaximumExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum exposure to credit risk</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaximumExposureToCreditRisk" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaximumExposureToCreditRisk"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaximumExposureToCreditRisk" xlink:to="lab_ifrs-full_MaximumExposureToCreditRisk" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory_019c29a6-48ae-7ae8-91ae-9df40a9097f5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets_019c29a6-4798-74ad-bf08-7c5ebd52dfa6_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated fair value hedge adjustment included in carrying amount</link:label>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets_label_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated fair value hedge adjustment on hedged item included in carrying amount, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets" xlink:to="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfRisksDomain_019c29a6-4931-7a36-a2e2-d21a3f9fafad_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfRisksDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of risks [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfRisksDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfRisksDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of risks [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfRisksDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfRisksDomain" xlink:to="lab_ifrs-full_TypesOfRisksDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets_019c29a6-4828-7cf0-a0b4-1192fc8cdbd8_terseLabel_en-US" xlink:label="lab_ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount</link:label>
    <link:label id="lab_ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recognised assets representing continuing involvement in derecognised financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:to="lab_ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UpsideScenarioMember_019c29a6-4828-75cb-b2f1-7294f4286816_terseLabel_en-US" xlink:label="lab_bbplc_UpsideScenarioMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Upside scenario</link:label>
    <link:label id="lab_bbplc_UpsideScenarioMember_label_en-US" xlink:label="lab_bbplc_UpsideScenarioMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Upside Scenario [Member]</link:label>
    <link:label id="lab_bbplc_UpsideScenarioMember_documentation_en-US" xlink:label="lab_bbplc_UpsideScenarioMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Upside Scenario</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UpsideScenarioMember" xlink:href="bbplc-20251231.xsd#bbplc_UpsideScenarioMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UpsideScenarioMember" xlink:to="lab_bbplc_UpsideScenarioMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory_019c29a6-48ae-73c4-8111-0d8a073ef3bd_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of net interest income sensitivity (AEaR) by currency and analysis of equity sensitivity</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory" xlink:to="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Explanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_019c29a6-4827-7d31-92eb-b4cb104b36d8_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiaries [axis]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiaries [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:to="lab_ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SharesaveMember_019c29a6-4828-7b3e-bd6b-4f94a8660096_terseLabel_en-US" xlink:label="lab_bbplc_SharesaveMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sharesave</link:label>
    <link:label id="lab_bbplc_SharesaveMember_label_en-US" xlink:label="lab_bbplc_SharesaveMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sharesave [member]</link:label>
    <link:label id="lab_bbplc_SharesaveMember_documentation_en-US" xlink:label="lab_bbplc_SharesaveMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Sharesave share-based payment scheme, a principal component of Other Schemes.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SharesaveMember" xlink:href="bbplc-20251231.xsd#bbplc_SharesaveMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SharesaveMember" xlink:to="lab_bbplc_SharesaveMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInternalCreditExposuresLineItems_019c29a6-4827-7400-a132-d672028eba60_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInternalCreditExposuresLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of internal credit grades [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInternalCreditExposuresLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInternalCreditExposuresLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of internal credit grades [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInternalCreditExposuresLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInternalCreditExposuresLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInternalCreditExposuresLineItems" xlink:to="lab_ifrs-full_DisclosureOfInternalCreditExposuresLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets_019c29a6-4798-799a-b365-af89d4d1ac44_negatedTerseLabel_en-US" xlink:label="lab_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Transfers to assets held for sale</link:label>
    <link:label id="lab_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets_label_en-US" xlink:label="lab_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Transfers To Assets Held For Sale, Financial Assets</link:label>
    <link:label id="lab_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets_documentation_en-US" xlink:label="lab_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Transfers To Assets Held For Sale, Financial Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets" xlink:to="lab_bbplc_DecreaseThroughTransfersToAssetsHeldForSaleFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities_019c29a6-4828-7238-bb4d-bf0efb656243_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest paid, classified as operating activities</link:label>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest paid, classified as operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:to="lab_ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxEffectFromChangeInTaxRate_019c29a6-4931-771e-81f0-42a6f13c91a6_terseLabel_en-US" xlink:label="lab_ifrs-full_TaxEffectFromChangeInTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax relief on payments made under AT1 instruments</link:label>
    <link:label id="lab_ifrs-full_TaxEffectFromChangeInTaxRate_label_en-US" xlink:label="lab_ifrs-full_TaxEffectFromChangeInTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax effect from change in tax rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxEffectFromChangeInTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectFromChangeInTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectFromChangeInTaxRate" xlink:to="lab_ifrs-full_TaxEffectFromChangeInTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_019c29a6-4931-70e5-ab5c-5c2e4482d7a9_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_019c29a6-4931-78b0-9945-b735ce0423e5_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, classified as held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InfrastructureCostsAbstract_019c29a6-4798-7a37-8a80-b4af3e1c62b8_terseLabel_en-US" xlink:label="lab_bbplc_InfrastructureCostsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Infrastructure costs</link:label>
    <link:label id="lab_bbplc_InfrastructureCostsAbstract_label_en-US" xlink:label="lab_bbplc_InfrastructureCostsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Infrastructure Costs [Abstract]</link:label>
    <link:label id="lab_bbplc_InfrastructureCostsAbstract_documentation_en-US" xlink:label="lab_bbplc_InfrastructureCostsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Infrastructure Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InfrastructureCostsAbstract" xlink:href="bbplc-20251231.xsd#bbplc_InfrastructureCostsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InfrastructureCostsAbstract" xlink:to="lab_bbplc_InfrastructureCostsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_019c29a6-4798-71f4-b3a6-e4ab13c6d4cf_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for segmental reporting</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for segment reporting [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForSegmentReportingExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GeneralMotorsMember_019c29a6-4828-75cd-8449-51d4168297ba_terseLabel_en-US" xlink:label="lab_bbplc_GeneralMotorsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General Motors</link:label>
    <link:label id="lab_bbplc_GeneralMotorsMember_label_en-US" xlink:label="lab_bbplc_GeneralMotorsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Motors [Member]</link:label>
    <link:label id="lab_bbplc_GeneralMotorsMember_documentation_en-US" xlink:label="lab_bbplc_GeneralMotorsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">General Motors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GeneralMotorsMember" xlink:href="bbplc-20251231.xsd#bbplc_GeneralMotorsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GeneralMotorsMember" xlink:to="lab_bbplc_GeneralMotorsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember_019c29a6-4828-76c7-b77d-b8e93f39b792_terseLabel_en-US" xlink:label="lab_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.03% Reverse Dual Currency Undated Subordinated Loan (JPY&#160;8,000m)</link:label>
    <link:label id="lab_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember_label_en-US" xlink:label="lab_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">5.03% Reverse Dual Currency Undated Subordinated Loan [Member]</link:label>
    <link:label id="lab_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember_documentation_en-US" xlink:label="lab_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 5.03% Reverse Dual Currency Undated Subordinated Loan, with an initial call date of 2028 and denominated in Japan, Yen currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember" xlink:href="bbplc-20251231.xsd#bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember" xlink:to="lab_bbplc_A503ReverseDualCurrencyUndatedSubordinatedLoanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_019c29a6-49d1-7a01-b99a-77655120430f_terseLabel_en-US" xlink:label="lab_ifrs-full_NetDefinedBenefitLiabilityAssetDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset) [domain]</link:label>
    <link:label id="lab_ifrs-full_NetDefinedBenefitLiabilityAssetDomain_label_en-US" xlink:label="lab_ifrs-full_NetDefinedBenefitLiabilityAssetDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset) [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetDefinedBenefitLiabilityAssetDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetDefinedBenefitLiabilityAssetDomain" xlink:to="lab_ifrs-full_NetDefinedBenefitLiabilityAssetDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueMultipleMeasurementInputMember_019c29a6-4828-7491-aaf8-62f7c43f4b34_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueMultipleMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity - equity correlation</link:label>
    <link:label id="lab_ifrs-full_RevenueMultipleMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_RevenueMultipleMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue multiple, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueMultipleMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueMultipleMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueMultipleMeasurementInputMember" xlink:to="lab_ifrs-full_RevenueMultipleMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory_019c29a6-4828-7ffd-856f-020459583bdd_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of contractual maturity of financial assets and liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for financial assets held for managing liquidity risk [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForFinancialAssetsHeldForManagingLiquidityRiskExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid_019c29a6-49d1-7442-9a17-26c5157ae6c7_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of shares issued and fully paid (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid_label_en-US" xlink:label="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of shares issued and fully paid</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfSharesIssuedAndFullyPaid"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:to="lab_ifrs-full_NumberOfSharesIssuedAndFullyPaid" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-48ae-7753-81a8-4e79e04c2b5f_terseLabel_en-US" xlink:label="lab_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">4.375% Perpetual Subordinated Contingent Convertible Securities (USD1,500m)</link:label>
    <link:label id="lab_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">4.375% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">4.375% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A4375PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments_019c29a6-49d1-727b-b608-c84fcd736eaa_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in derivative value due to adjustments</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Derivative Fair Value Adjustments</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase (decrease) in fair value adjustments of derivatives during the period.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments" xlink:to="lab_bbplc_IncreaseDecreaseInDerivativeFairValueAdjustments" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LoansAndAdvancesMember_019c29a6-4828-71f1-94fd-8b6b60e85d41_terseLabel_en-US" xlink:label="lab_bbplc_LoansAndAdvancesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesMember_label_en-US" xlink:label="lab_bbplc_LoansAndAdvancesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans And Advances [Member]</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesMember_documentation_en-US" xlink:label="lab_bbplc_LoansAndAdvancesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loans And Advances</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LoansAndAdvancesMember" xlink:href="bbplc-20251231.xsd#bbplc_LoansAndAdvancesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LoansAndAdvancesMember" xlink:to="lab_bbplc_LoansAndAdvancesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseInActuarialAssumptionDuration_019c29a6-4798-715b-903a-458f8e52bbf1_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseInActuarialAssumptionDuration" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase in actuarial assumption, duration</link:label>
    <link:label id="lab_bbplc_IncreaseInActuarialAssumptionDuration_label_en-US" xlink:label="lab_bbplc_IncreaseInActuarialAssumptionDuration" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase In Actuarial Assumption, Duration</link:label>
    <link:label id="lab_bbplc_IncreaseInActuarialAssumptionDuration_documentation_en-US" xlink:label="lab_bbplc_IncreaseInActuarialAssumptionDuration" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase In Actuarial Assumption, Duration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseInActuarialAssumptionDuration" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseInActuarialAssumptionDuration"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseInActuarialAssumptionDuration" xlink:to="lab_bbplc_IncreaseInActuarialAssumptionDuration" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities_019c29a6-49d1-7824-b850-3fe257c99fdc_negatedLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accumulated fair value hedge adjustment included in carrying amount</link:label>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities_label_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated fair value hedge adjustment on hedged item included in carrying amount, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities" xlink:to="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ThirdPartiesMember_019c29a6-48ae-7a14-bd50-7d2f95b667c9_terseLabel_en-US" xlink:label="lab_bbplc_ThirdPartiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Third parties</link:label>
    <link:label id="lab_bbplc_ThirdPartiesMember_label_en-US" xlink:label="lab_bbplc_ThirdPartiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Third Parties [Member]</link:label>
    <link:label id="lab_bbplc_ThirdPartiesMember_documentation_en-US" xlink:label="lab_bbplc_ThirdPartiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for third parties.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ThirdPartiesMember" xlink:href="bbplc-20251231.xsd#bbplc_ThirdPartiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ThirdPartiesMember" xlink:to="lab_bbplc_ThirdPartiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_019c29a6-4931-7ec8-a348-26f0b0ac5cfe_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract_019c29a6-4931-7263-a7d3-fbf7c5dfe69b_terseLabel_en-US" xlink:label="lab_bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">38. Assets pledged, collateral received and assets transferred</link:label>
    <link:label id="lab_bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract_label_en-US" xlink:label="lab_bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets Pledged, Collateral Received And Assets Transferred [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract" xlink:href="bbplc-20251231.xsd#bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract" xlink:to="lab_bbplc_AssetsPledgedCollateralReceivedAndAssetsTransferredAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFinStmtErrorCorrectionFlag_019c29a6-4798-799c-b2d6-9a99cfb72768_terseLabel_en-US" xlink:label="lab_dei_DocumentFinStmtErrorCorrectionFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</link:label>
    <link:label id="lab_dei_DocumentFinStmtErrorCorrectionFlag_label_en-US" xlink:label="lab_dei_DocumentFinStmtErrorCorrectionFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Financial Statement Error Correction [Flag]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFinStmtErrorCorrectionFlag" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFinStmtErrorCorrectionFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFinStmtErrorCorrectionFlag" xlink:to="lab_dei_DocumentFinStmtErrorCorrectionFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019c29a6-49d1-7e3e-a6f7-53072ded9ef2_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial instruments at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets measured at fair value through other comprehensive income, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MiningAndQuarryingMember_019c29a6-48ae-71f1-bec7-73b1019039e4_terseLabel_en-US" xlink:label="lab_bbplc_MiningAndQuarryingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mining and Quarrying</link:label>
    <link:label id="lab_bbplc_MiningAndQuarryingMember_label_en-US" xlink:label="lab_bbplc_MiningAndQuarryingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mining And Quarrying [Member]</link:label>
    <link:label id="lab_bbplc_MiningAndQuarryingMember_documentation_en-US" xlink:label="lab_bbplc_MiningAndQuarryingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Mining And Quarrying</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MiningAndQuarryingMember" xlink:href="bbplc-20251231.xsd#bbplc_MiningAndQuarryingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MiningAndQuarryingMember" xlink:to="lab_bbplc_MiningAndQuarryingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnallocatedAmountsMember_019c29a6-48ae-7e21-b836-3efdf9a30b4b_terseLabel_en-US" xlink:label="lab_ifrs-full_UnallocatedAmountsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Head Office</link:label>
    <link:label id="lab_ifrs-full_UnallocatedAmountsMember_label_en-US" xlink:label="lab_ifrs-full_UnallocatedAmountsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unallocated amounts [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnallocatedAmountsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnallocatedAmountsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnallocatedAmountsMember" xlink:to="lab_ifrs-full_UnallocatedAmountsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems_019c29a6-4931-7566-be0a-5601de1b80b1_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Classified As Held For Sale [Line Items]</link:label>
    <link:label id="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems_label_en-US" xlink:label="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Classified As Held For Sale [Line Items]</link:label>
    <link:label id="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Classified As Held For Sale [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems" xlink:to="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransportAndStorageMember_019c29a6-4828-79fe-a00a-2d21c23dd2f1_terseLabel_en-US" xlink:label="lab_bbplc_TransportAndStorageMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transport and storage</link:label>
    <link:label id="lab_bbplc_TransportAndStorageMember_label_en-US" xlink:label="lab_bbplc_TransportAndStorageMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transport And storage [Member]</link:label>
    <link:label id="lab_bbplc_TransportAndStorageMember_documentation_en-US" xlink:label="lab_bbplc_TransportAndStorageMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Transport And storage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransportAndStorageMember" xlink:href="bbplc-20251231.xsd#bbplc_TransportAndStorageMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransportAndStorageMember" xlink:to="lab_bbplc_TransportAndStorageMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_019c29a6-49d1-7fc5-9426-456100a713b4_negatedLabel_en-US" xlink:label="lab_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cash collateral</link:label>
    <link:label id="lab_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_019c29a6-49d1-7f28-93cd-a78fd6603644_terseLabel_en-US" xlink:label="lab_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral</link:label>
    <link:label id="lab_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash collateral received subject to enforceable master netting arrangement or similar agreement not set off against financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:to="lab_ifrs-full_CashCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_019c29a6-4828-71ab-93c1-44164ac43ef9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of loans and deposits outstanding</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityAndLiabilities_019c29a6-48ae-708f-8e04-b29f950dcea1_totalLabel_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and equity</link:label>
    <link:label id="lab_ifrs-full_EquityAndLiabilities_label_en-US" xlink:label="lab_ifrs-full_EquityAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity and liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAndLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAndLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAndLiabilities" xlink:to="lab_ifrs-full_EquityAndLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_country_US_019c29a6-49d1-7e09-85fe-3eec6a238ee9_terseLabel_en-US" xlink:label="lab_country_US" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">United States</link:label>
    <link:label id="lab_country_US_019c29a6-49d1-7a84-9297-241eee960144_verboseLabel_en-US" xlink:label="lab_country_US" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">United States</link:label>
    <link:label id="lab_country_US_label_en-US" xlink:label="lab_country_US" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED STATES</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_US" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_US" xlink:to="lab_country_US" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_019c29a6-4931-7ddc-aac4-9729fa66cc29_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exchange and other movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, other provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BusinessCombinationsDomain_019c29a6-4828-7192-b458-c87e00fe5c1f_terseLabel_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combinations [domain]</link:label>
    <link:label id="lab_ifrs-full_BusinessCombinationsDomain_label_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business combinations [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BusinessCombinationsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsDomain" xlink:to="lab_ifrs-full_BusinessCombinationsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory_019c29a6-49d1-7f2f-9cea-d6ed1ae2fb3d_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for the impairment of financial assets</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for impairment of financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember_019c29a6-4828-7178-a359-e61eab99159c_terseLabel_en-US" xlink:label="lab_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pension funds</link:label>
    <link:label id="lab_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember_label_en-US" xlink:label="lab_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension Funds, Unit Trusts, And Investment Funds [Member]</link:label>
    <link:label id="lab_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember_documentation_en-US" xlink:label="lab_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for pension funds, unit trusts, and investment funds entities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember" xlink:href="bbplc-20251231.xsd#bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember" xlink:to="lab_bbplc_PensionFundsUnitTrustsAndInvestmentFundsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments_019c29a6-48ae-78e7-acdd-fdf87794ebe8_totalLabel_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Remaining structural currency exposures</link:label>
    <link:label id="lab_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments_label_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Structural Currency Exposure, Net Of Hedging Instruments</link:label>
    <link:label id="lab_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments_documentation_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of structural currency exposures net of hedging instruments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments" xlink:href="bbplc-20251231.xsd#bbplc_StructuralCurrencyExposureNetOfHedgingInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments" xlink:to="lab_bbplc_StructuralCurrencyExposureNetOfHedgingInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions_019c29a6-4828-78ea-a0a9-4b956a449920_terseLabel_en-US" xlink:label="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total commitments outstanding</link:label>
    <link:label id="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outstanding commitments made by entity, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OutstandingCommitmentsMadeByEntityRelatedPartyTransactions"/>
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    <link:label id="lab_bbplc_A5088FixedToFloatingRateSubordinatedCallableNotesDue2030Member_019c29a6-4931-7dfe-8ecd-c252f9b0741f_terseLabel_en-US" xlink:label="lab_bbplc_A5088FixedToFloatingRateSubordinatedCallableNotesDue2030Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.088% Fixed-to-Floating Rate Subordinated Callable Notes (USD 1,300m)</link:label>
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    <link:label id="lab_bbplc_A5088FixedToFloatingRateSubordinatedCallableNotesDue2030Member_documentation_en-US" xlink:label="lab_bbplc_A5088FixedToFloatingRateSubordinatedCallableNotesDue2030Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 5.088% Callable Tier 2 Subordinated Notes.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A5088FixedToFloatingRateSubordinatedCallableNotesDue2030Member" xlink:href="bbplc-20251231.xsd#bbplc_A5088FixedToFloatingRateSubordinatedCallableNotesDue2030Member"/>
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    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage_019c29a6-48ae-7219-b7ac-4f47f53d8f72_terseLabel_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase agreements and other similar secured lending, percentage</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage_label_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Repurchase Agreements And Cash Collateral On Securities Borrowed, Percentage</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage_documentation_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of instruments purchased for resale in reverse repurchase agreements and cash collateral on securities borrowed, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage" xlink:href="bbplc-20251231.xsd#bbplc_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowedPercentage"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets_019c29a6-49d1-7759-9ee9-8e2ad306474a_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Total exchange and other adjustments</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through foreign exchange and other movements, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughForeignExchangeAndOtherMovementsFinancialAssets"/>
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    <link:label id="lab_ifrs-full_InterestRateMeasurementInputMember_019c29a6-4798-7bf1-9a0f-32a39d3049d2_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate volatility</link:label>
    <link:label id="lab_ifrs-full_InterestRateMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_InterestRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest rate, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRateMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRateMeasurementInputMember"/>
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    <link:label id="lab_ifrs-full_JointVenturesDomain_019c29a6-49d1-7063-bd3d-cfd3b72b463e_terseLabel_en-US" xlink:label="lab_ifrs-full_JointVenturesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint ventures [domain]</link:label>
    <link:label id="lab_ifrs-full_JointVenturesDomain_label_en-US" xlink:label="lab_ifrs-full_JointVenturesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint ventures [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_JointVenturesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_JointVenturesDomain" xlink:to="lab_ifrs-full_JointVenturesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities_019c29a6-4931-7b59-821a-9ce5bc102ec8_verboseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Exchange and other movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities"/>
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    <link:label id="lab_bbplc_AdjustmentsInRespectOfPriorYearsPercentage_019c29a6-49d1-70f8-bb72-512c9994971d_terseLabel_en-US" xlink:label="lab_bbplc_AdjustmentsInRespectOfPriorYearsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments in respect of prior years, percentage</link:label>
    <link:label id="lab_bbplc_AdjustmentsInRespectOfPriorYearsPercentage_label_en-US" xlink:label="lab_bbplc_AdjustmentsInRespectOfPriorYearsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments In Respect Of Prior Years, Percentage</link:label>
    <link:label id="lab_bbplc_AdjustmentsInRespectOfPriorYearsPercentage_documentation_en-US" xlink:label="lab_bbplc_AdjustmentsInRespectOfPriorYearsPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tax rate effect of adjustments for current and deferred tax of prior periods, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AdjustmentsInRespectOfPriorYearsPercentage" xlink:href="bbplc-20251231.xsd#bbplc_AdjustmentsInRespectOfPriorYearsPercentage"/>
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    <link:label id="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount_019c29a6-4930-7df1-b6b9-5f6f4e9f61ea_terseLabel_en-US" xlink:label="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">100bps increase in the discount rate</link:label>
    <link:label id="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount_label_en-US" xlink:label="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sensitivity Analysis For Impairment, Reasonably Possible 100Bps Change In Discount Rate, Amount</link:label>
    <link:label id="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount_documentation_en-US" xlink:label="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sensitivity Analysis For Impairment, Reasonably Possible 100Bps Change In Discount Rate, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount" xlink:href="bbplc-20251231.xsd#bbplc_SensitivityAnalysisForImpairmentReasonablyPossible100BpsChangeInDiscountRateAmount"/>
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    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities_019c29a6-48ae-7695-a231-c8a321725b24_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Favorable changes</link:label>
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    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of increase in the fair value measurement of assets and liabilities due to a change in one or more unobservable inputs to reflect reasonably possible alternative assumptions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities"/>
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    <link:label id="lab_ifrs-full_PurchaseOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities_019c29a6-4828-7186-b6aa-80ff85043f85_negatedLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfFinancialAssetsMeasuredAtAmortisedCostClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of debt securities at amortised cost</link:label>
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    <link:label id="lab_dei_CityAreaCode_019c29a6-49d1-7f53-9a63-edcf34f64992_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
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    <link:label id="lab_ifrs-full_ImpairmentLossAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers_019c29a6-49d1-7992-aea9-d49539d5904c_terseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment loss, assets recognised from costs incurred to obtain or fulfil contracts with customers</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss, assets recognised from costs incurred to obtain or fulfil contracts with customers</link:label>
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    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory_019c29a6-49d1-7eaa-9f60-923378efe4e3_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for contingent liabilities</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForContingentLiabilitiesAndContingentAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for contingent liabilities and contingent assets [text block]</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable_019c29a6-49d1-723f-a466-fb0aabf51b57_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of net defined benefit liability (asset) [table]</link:label>
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    <link:label id="lab_currency_USD_019c29a6-4828-73fd-88f5-fd9595dbbf3b_netLabel_en-US" xlink:label="lab_currency_USD" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">USD</link:label>
    <link:label id="lab_currency_USD_019c29a6-4828-77bc-9e85-19799a21a315_terseLabel_en-US" xlink:label="lab_currency_USD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">United States of America, Dollars</link:label>
    <link:label id="lab_currency_USD_019c29a6-4828-75c9-8680-647700d18e71_verboseLabel_en-US" xlink:label="lab_currency_USD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">USD foreign operations</link:label>
    <link:label id="lab_currency_USD_label_en-US" xlink:label="lab_currency_USD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">United States of America, Dollars</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_USD" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_USD"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_USD" xlink:to="lab_currency_USD" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_019c29a6-48ae-7a3a-81a8-e10842a0c623_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of financial instruments</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value of financial instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueOfFinancialInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember_019c29a6-48ae-73b8-a9a9-235056b9e5ab_terseLabel_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Life expectancy at 40 for future pensioners at 40 years, males</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember_label_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Life Expectancy At 60 For Future Pensioners At 40 Years, Males [Member]</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember_documentation_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for life expectancy of males at 60 for future pensioners currently aged 40, used as actuarial assumptions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember" xlink:href="bbplc-20251231.xsd#bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember" xlink:to="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsMalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GermanConsumerFinancePortfolioMember_019c29a6-4828-766c-a5d5-a68be6c7d91f_terseLabel_en-US" xlink:label="lab_bbplc_GermanConsumerFinancePortfolioMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">German Consumer Finance portfolio</link:label>
    <link:label id="lab_bbplc_GermanConsumerFinancePortfolioMember_label_en-US" xlink:label="lab_bbplc_GermanConsumerFinancePortfolioMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">German Consumer Finance Portfolio [Member]</link:label>
    <link:label id="lab_bbplc_GermanConsumerFinancePortfolioMember_documentation_en-US" xlink:label="lab_bbplc_GermanConsumerFinancePortfolioMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">German Consumer Finance Portfolio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GermanConsumerFinancePortfolioMember" xlink:href="bbplc-20251231.xsd#bbplc_GermanConsumerFinancePortfolioMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GermanConsumerFinancePortfolioMember" xlink:to="lab_bbplc_GermanConsumerFinancePortfolioMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_019c29a6-49d1-7c23-9948-86ae31001169_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CorporateLoansMember_019c29a6-4828-7ab1-bf2c-ed2a6b28df1e_terseLabel_en-US" xlink:label="lab_ifrs-full_CorporateLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate loans</link:label>
    <link:label id="lab_ifrs-full_CorporateLoansMember_019c29a6-4828-7548-9160-3ac8091a48e8_verboseLabel_en-US" xlink:label="lab_ifrs-full_CorporateLoansMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Corporate debt</link:label>
    <link:label id="lab_ifrs-full_CorporateLoansMember_label_en-US" xlink:label="lab_ifrs-full_CorporateLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans to corporate entities [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CorporateLoansMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CorporateLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CorporateLoansMember" xlink:to="lab_ifrs-full_CorporateLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_019c29a6-4930-7de5-93f8-d5e457c5e123_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other reserve movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through other changes, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory_019c29a6-4828-74bc-8f70-c4fb83142b39_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related party transactions and Directors' remuneration</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of related party [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRelatedPartyExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:to="lab_ifrs-full_DisclosureOfRelatedPartyExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECL_019c29a6-4931-7312-a28a-40848018b7c3_terseLabel_en-US" xlink:label="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECL" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of economic scenarios</link:label>
    <link:label id="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECL_label_en-US" xlink:label="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECL" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Number Of Economic Scenarios To Calculate ECL</link:label>
    <link:label id="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECL_documentation_en-US" xlink:label="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECL" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total Number Of Economic Scenarios To Calculate ECL</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TotalNumberOfEconomicScenariosToCalculateECL" xlink:href="bbplc-20251231.xsd#bbplc_TotalNumberOfEconomicScenariosToCalculateECL"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TotalNumberOfEconomicScenariosToCalculateECL" xlink:to="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECL" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RmbsRepurchaseRequestsMember_019c29a6-48ae-73ab-bd28-7d59cbfb53f4_terseLabel_en-US" xlink:label="lab_bbplc_RmbsRepurchaseRequestsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">RMBS repurchase requests</link:label>
    <link:label id="lab_bbplc_RmbsRepurchaseRequestsMember_label_en-US" xlink:label="lab_bbplc_RmbsRepurchaseRequestsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">RMBS Repurchase Requests [Member]</link:label>
    <link:label id="lab_bbplc_RmbsRepurchaseRequestsMember_documentation_en-US" xlink:label="lab_bbplc_RmbsRepurchaseRequestsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for various US residential mortgage-backed securities loan-level representations and warranties (R&amp;Ws).</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RmbsRepurchaseRequestsMember" xlink:href="bbplc-20251231.xsd#bbplc_RmbsRepurchaseRequestsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RmbsRepurchaseRequestsMember" xlink:to="lab_bbplc_RmbsRepurchaseRequestsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill_019c29a6-49d1-7887-b349-ef1504b36e4a_negatedLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Impairment charge</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss, intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level3OfFairValueHierarchyMember_019c29a6-4931-76d6-a2d2-5feddec2621a_verboseLabel_en-US" xlink:label="lab_ifrs-full_Level3OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Level 3</link:label>
    <link:label id="lab_ifrs-full_Level3OfFairValueHierarchyMember_019c29a6-4931-794c-9f5e-a23e1740f69d_terseLabel_en-US" xlink:label="lab_ifrs-full_Level3OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level 3</link:label>
    <link:label id="lab_ifrs-full_Level3OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level3OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 3 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level3OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level3OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level3OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level3OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-4828-7cf6-a070-bbd536111b3d_negatedLabel_en-US" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Disposals</link:label>
    <link:label id="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposals, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_DisposalsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CommoditiesMember_019c29a6-4828-7bbe-8edc-a647651cce6f_terseLabel_en-US" xlink:label="lab_bbplc_CommoditiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commodities</link:label>
    <link:label id="lab_bbplc_CommoditiesMember_label_en-US" xlink:label="lab_bbplc_CommoditiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commodities [Member]</link:label>
    <link:label id="lab_bbplc_CommoditiesMember_documentation_en-US" xlink:label="lab_bbplc_CommoditiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for commodities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CommoditiesMember" xlink:href="bbplc-20251231.xsd#bbplc_CommoditiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CommoditiesMember" xlink:to="lab_bbplc_CommoditiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_019c29a6-4931-78d3-9c53-0f84bfd99443_terseLabel_en-US" xlink:label="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss on disposal of subsidiaries, associates and joint ventures</link:label>
    <link:label id="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_019c29a6-4931-7afe-876b-faeb7a5ef944_verboseLabel_en-US" xlink:label="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Profit on disposal of subsidiaries, associates and joint ventures</link:label>
    <link:label id="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_label_en-US" xlink:label="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:to="lab_ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ManufacturingMember_019c29a6-49d1-7cce-947c-478510fcaa8e_terseLabel_en-US" xlink:label="lab_bbplc_ManufacturingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Manufacturing</link:label>
    <link:label id="lab_bbplc_ManufacturingMember_label_en-US" xlink:label="lab_bbplc_ManufacturingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Manufacturing [member]</link:label>
    <link:label id="lab_bbplc_ManufacturingMember_documentation_en-US" xlink:label="lab_bbplc_ManufacturingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the manufacturing industry.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ManufacturingMember" xlink:href="bbplc-20251231.xsd#bbplc_ManufacturingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ManufacturingMember" xlink:to="lab_bbplc_ManufacturingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnobservableInputsAxis_019c29a6-48ae-7f49-9872-e2e9f29398ec_terseLabel_en-US" xlink:label="lab_ifrs-full_UnobservableInputsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unobservable inputs [axis]</link:label>
    <link:label id="lab_ifrs-full_UnobservableInputsAxis_label_en-US" xlink:label="lab_ifrs-full_UnobservableInputsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unobservable inputs [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnobservableInputsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnobservableInputsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnobservableInputsAxis" xlink:to="lab_ifrs-full_UnobservableInputsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock_019c29a6-4828-7ad2-aa9d-4139cdceedd1_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of share option and award plans</link:label>
    <link:label id="lab_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Stock Options And Award Plan Of Share-Based Payment Arrangement [Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of stock options and award plan of share-based payment arrangements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock" xlink:to="lab_bbplc_DisclosureOfStockOptionsAndAwardPlanOfShareBasedPaymentArrangementTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets_019c29a6-4930-74ae-9fca-c525fdcc9a65_negatedLabel_en-US" xlink:label="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Write-offs</link:label>
    <link:label id="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease through write-off, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DecreaseThroughWriteoffFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:to="lab_ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LoansAndAdvancesAtAmortisedCost_019c29a6-4828-7b1a-affa-f9a2c6d367b9_terseLabel_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost</link:label>
    <link:label id="lab_ifrs-full_LoansAndAdvancesAtAmortisedCost_019c29a6-4828-7d3b-80f5-c72e73a18491_verboseLabel_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost to banks and customers</link:label>
    <link:label id="lab_ifrs-full_LoansAndAdvancesAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoansAndAdvancesAtAmortisedCost" xlink:to="lab_ifrs-full_LoansAndAdvancesAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_019c29a6-4930-7900-9d5b-0177a75f7361_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_EmployeeBenefitAndOtherTrustsMember_019c29a6-4931-75a8-8297-c5476966aa8d_terseLabel_en-US" xlink:label="lab_bbplc_EmployeeBenefitAndOtherTrustsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee benefit and other trusts</link:label>
    <link:label id="lab_bbplc_EmployeeBenefitAndOtherTrustsMember_label_en-US" xlink:label="lab_bbplc_EmployeeBenefitAndOtherTrustsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee Benefit And Other Trusts [Member]</link:label>
    <link:label id="lab_bbplc_EmployeeBenefitAndOtherTrustsMember_documentation_en-US" xlink:label="lab_bbplc_EmployeeBenefitAndOtherTrustsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands employee benefits and trust funds.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_EmployeeBenefitAndOtherTrustsMember" xlink:href="bbplc-20251231.xsd#bbplc_EmployeeBenefitAndOtherTrustsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_EmployeeBenefitAndOtherTrustsMember" xlink:to="lab_bbplc_EmployeeBenefitAndOtherTrustsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement_019c29a6-4828-7d16-afd2-fe950534f745_terseLabel_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assumed life expectancy at 60</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement_label_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial Assumption Of Life Expectancy After Retirement</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement_documentation_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The life expectancy, expressed in years, after retirement used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement" xlink:href="bbplc-20251231.xsd#bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement" xlink:to="lab_bbplc_ActuarialAssumptionOfLifeExpectancyAfterRetirement" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PensionersAndDependentsMember_019c29a6-4798-77ba-b739-e8aeaa91d3ca_terseLabel_en-US" xlink:label="lab_bbplc_PensionersAndDependentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pensioners and Dependents</link:label>
    <link:label id="lab_bbplc_PensionersAndDependentsMember_label_en-US" xlink:label="lab_bbplc_PensionersAndDependentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pensioners And Dependents [Member]</link:label>
    <link:label id="lab_bbplc_PensionersAndDependentsMember_documentation_en-US" xlink:label="lab_bbplc_PensionersAndDependentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pensioners And Dependents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PensionersAndDependentsMember" xlink:href="bbplc-20251231.xsd#bbplc_PensionersAndDependentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PensionersAndDependentsMember" xlink:to="lab_bbplc_PensionersAndDependentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SignificantUnobservableInputsAssetsAndLiabilities_019c29a6-4930-7315-8844-40145b616f8c_terseLabel_en-US" xlink:label="lab_bbplc_SignificantUnobservableInputsAssetsAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant unobservable inputs, assets and liabilities</link:label>
    <link:label id="lab_bbplc_SignificantUnobservableInputsAssetsAndLiabilities_label_en-US" xlink:label="lab_bbplc_SignificantUnobservableInputsAssetsAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Unobservable Inputs, Assets And Liabilities</link:label>
    <link:label id="lab_bbplc_SignificantUnobservableInputsAssetsAndLiabilities_documentation_en-US" xlink:label="lab_bbplc_SignificantUnobservableInputsAssetsAndLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The value of significant unobservable input used in the measurement of the fair value of assets and liabilities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SignificantUnobservableInputsAssetsAndLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_SignificantUnobservableInputsAssetsAndLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SignificantUnobservableInputsAssetsAndLiabilities" xlink:to="lab_bbplc_SignificantUnobservableInputsAssetsAndLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_019c29a6-4798-7fe3-a8d4-dcc2d3441f73_terseLabel_en-US" xlink:label="lab_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">7.125% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:label id="lab_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_label_en-US" xlink:label="lab_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">7.125% Perpetual Subordinated Contingent Convertible Securities Due 2025 [Member]</link:label>
    <link:label id="lab_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_documentation_en-US" xlink:label="lab_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 7.125% GBP denominated currency, Fixed Rate Resetting Perpetual Subordinated Contingent Convertible Securities of the entity, with an initial call date of 2025</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:href="bbplc-20251231.xsd#bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:to="lab_bbplc_A7125PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PastDueStatusAxis_019c29a6-4798-722a-a215-cd7ad63cfe56_terseLabel_en-US" xlink:label="lab_ifrs-full_PastDueStatusAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Past due status [axis]</link:label>
    <link:label id="lab_ifrs-full_PastDueStatusAxis_label_en-US" xlink:label="lab_ifrs-full_PastDueStatusAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Past due status [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PastDueStatusAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastDueStatusAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PastDueStatusAxis" xlink:to="lab_ifrs-full_PastDueStatusAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_019c29a6-48ae-7bb3-8934-9e7514c4e03f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through the income statement</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial instruments at fair value through profit or loss [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes_019c29a6-48ae-73f1-824a-b11d2aa01fd0_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additional taxes related to Pillar Two</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax expense (income), related to Pillar Two income taxes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncomeRelatedToPillarTwoIncomeTaxes"/>
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    <link:label id="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_019c29a6-48ae-7027-b90c-0883116db720_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based payments</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of share-based payment arrangements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory"/>
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    <link:label id="lab_ifrs-full_PurchaseOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities_019c29a6-48ae-794a-9b67-31fc93108669_negatedLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of financial assets measured at fair value through other comprehensive income, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities"/>
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    <link:label id="lab_ifrs-full_LaterThanOneYearMember_019c29a6-4798-7477-82b4-7705fc4bd9b9_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">After more than 12 months</link:label>
    <link:label id="lab_ifrs-full_LaterThanOneYearMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than one year [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanOneYearMember" xlink:to="lab_ifrs-full_LaterThanOneYearMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysUsLlcMember_019c29a6-4828-7b58-a478-90da36dbe9c0_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysUsLlcMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays US LLC</link:label>
    <link:label id="lab_bbplc_BarclaysUsLlcMember_label_en-US" xlink:label="lab_bbplc_BarclaysUsLlcMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays US LLC [member]</link:label>
    <link:label id="lab_bbplc_BarclaysUsLlcMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysUsLlcMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The intermediate holding company established by Barclays in July 2016, which holds most of Barclays' subsidiaries and assets in the US.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysUsLlcMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysUsLlcMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysUsLlcMember" xlink:to="lab_bbplc_BarclaysUsLlcMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems_019c29a6-4828-751d-b6bd-43f8c928bd82_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfDirectorsOnTrusteeBoard_019c29a6-4930-71ab-bd82-9ce9ddf69e20_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfDirectorsOnTrusteeBoard" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of directors on trustee board</link:label>
    <link:label id="lab_bbplc_NumberOfDirectorsOnTrusteeBoard_label_en-US" xlink:label="lab_bbplc_NumberOfDirectorsOnTrusteeBoard" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Directors On Trustee Board</link:label>
    <link:label id="lab_bbplc_NumberOfDirectorsOnTrusteeBoard_documentation_en-US" xlink:label="lab_bbplc_NumberOfDirectorsOnTrusteeBoard" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Directors On Trustee Board</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfDirectorsOnTrusteeBoard" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfDirectorsOnTrusteeBoard"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfDirectorsOnTrusteeBoard" xlink:to="lab_bbplc_NumberOfDirectorsOnTrusteeBoard" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-48ae-7f12-990e-6aa56d3574ed_terseLabel_en-US" xlink:label="lab_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">9.625% Perpetual Subordinated Contingent Convertible Securities (USD1,750m)</link:label>
    <link:label id="lab_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">9.625% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">9.625% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A9625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember_019c29a6-48ae-7b16-b517-86882c73f15d_terseLabel_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total for all cash-generating units</link:label>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember_label_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total for all cash-generating units [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember" xlink:to="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity_019c3427-3a99-7d7e-a50e-0f7464fc6f59_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in equity for the year due to reasonable possible increase, percentage</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Equity Due To Reasonably Possible Increase In Risk Variable As A Percentage Of Total Equity</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Equity Due To Reasonably Possible Increase In Risk Variable As A Percentage Of Total Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:to="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherAssetsMember_019c29a6-4931-739f-ac95-0c4b1b1339d2_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_ifrs-full_OtherAssetsMember_label_en-US" xlink:label="lab_ifrs-full_OtherAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other assets [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherAssetsMember" xlink:to="lab_ifrs-full_OtherAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK_019c29a6-4930-737d-acc6-9076a42d2609_terseLabel_en-US" xlink:label="lab_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in recognition of deferred tax and effect of unrecognised tax losses, percentage</link:label>
    <link:label id="lab_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK_label_en-US" xlink:label="lab_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Of Changes in Recognition of Deferred Tax and Unrecognised Tax Losses And UK</link:label>
    <link:label id="lab_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK_documentation_en-US" xlink:label="lab_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Of Changes in Recognition of Deferred Tax and Unrecognised Tax Losses And UK</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:href="bbplc-20251231.xsd#bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:to="lab_bbplc_TaxRateEffectOfChangesInRecognitionOfDeferredTaxAndUnrecognisedTaxLossesAndUK" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInFinancialAssets_019c29a6-48ae-7a08-a58a-b30ccced1b1f_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">ECL movement</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInFinancialAssets" xlink:to="lab_ifrs-full_IncreaseDecreaseInFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfProvisionsAxis_019c29a6-4828-7ce9-9a1a-ef57ceaffdd8_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfProvisionsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of other provisions [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfProvisionsAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfProvisionsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of other provisions [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfProvisionsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfProvisionsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfProvisionsAxis" xlink:to="lab_ifrs-full_ClassesOfProvisionsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending_019c29a6-48ae-7122-a67a-eb786d90b8b9_terseLabel_en-US" xlink:label="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements and other similar secured borrowing, undiscounted</link:label>
    <link:label id="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending_label_en-US" xlink:label="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repurchase Agreements And Other Similar Secured Lending</link:label>
    <link:label id="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending_documentation_en-US" xlink:label="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to repurchase agreements and other similar secured lending.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending" xlink:href="bbplc-20251231.xsd#bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending" xlink:to="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredLending" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LeaseholdImprovementsMember_019c29a6-4828-7283-8717-3f21f78e2787_terseLabel_en-US" xlink:label="lab_ifrs-full_LeaseholdImprovementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Costs of adaptation of freehold and leasehold property</link:label>
    <link:label id="lab_ifrs-full_LeaseholdImprovementsMember_label_en-US" xlink:label="lab_ifrs-full_LeaseholdImprovementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leasehold improvements [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseholdImprovementsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseholdImprovementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseholdImprovementsMember" xlink:to="lab_ifrs-full_LeaseholdImprovementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysCapitalSecuritiesLimitedMember_019c29a6-48ae-7cc4-8753-58a00d2d4349_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysCapitalSecuritiesLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Capital Securities Limited</link:label>
    <link:label id="lab_bbplc_BarclaysCapitalSecuritiesLimitedMember_label_en-US" xlink:label="lab_bbplc_BarclaysCapitalSecuritiesLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Capital Securities Limited [member]</link:label>
    <link:label id="lab_bbplc_BarclaysCapitalSecuritiesLimitedMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysCapitalSecuritiesLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Barclays Capital Securities Limited.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysCapitalSecuritiesLimitedMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysCapitalSecuritiesLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysCapitalSecuritiesLimitedMember" xlink:to="lab_bbplc_BarclaysCapitalSecuritiesLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember_019c29a6-4828-79b0-9fbe-3be76190ebc9_verboseLabel_en-US" xlink:label="lab_ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Not held at fair value</link:label>
    <link:label id="lab_ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember_label_en-US" xlink:label="lab_ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Not measured at fair value in statement of financial position but for which fair value is disclosed [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember" xlink:to="lab_ifrs-full_NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted_019c29a6-49d1-7e88-ae93-0552b22f5614_terseLabel_en-US" xlink:label="lab_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral and settlement balances, undiscounted</link:label>
    <link:label id="lab_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted_label_en-US" xlink:label="lab_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Collateral And Settlement Balance Liabilities, Undiscounted</link:label>
    <link:label id="lab_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted_documentation_en-US" xlink:label="lab_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to cash collateral and settlement balance liabilities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted" xlink:href="bbplc-20251231.xsd#bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted" xlink:to="lab_bbplc_CashCollateralAndSettlementBalanceLiabilitiesUndiscounted" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock_019c29a6-4798-7d92-8e30-8cb8b25d1fe8_terseLabel_en-US" xlink:label="lab_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis of off-balance sheet commitments given</link:label>
    <link:label id="lab_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock_label_en-US" xlink:label="lab_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity Analysis Of Off-Balance Sheet Commitments Given [Table Text Block]</link:label>
    <link:label id="lab_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of the maturity split of the off balance sheet commitments given at the balance sheet date. The amounts disclosed in the table are the undiscounted cash flows (i.e. nominal values) on the basis of earliest opportunity at which they are available.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock" xlink:to="lab_bbplc_MaturityAnalysisOfOffBalanceSheetCommitmentsGivenTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepositsFromBanksAtAmortisedCost_019c29a6-4828-7ca5-bc82-40e7e6b27a6f_terseLabel_en-US" xlink:label="lab_ifrs-full_DepositsFromBanksAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits at amortised cost from banks</link:label>
    <link:label id="lab_ifrs-full_DepositsFromBanksAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_DepositsFromBanksAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits from banks at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsFromBanksAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepositsFromBanksAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepositsFromBanksAtAmortisedCost" xlink:to="lab_ifrs-full_DepositsFromBanksAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_OtherCurrencyMember_019c29a6-49d1-7bde-a862-81258d63c295_netLabel_en-US" xlink:label="lab_srt_OtherCurrencyMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_srt_OtherCurrencyMember_019c29a6-49d1-72a2-a728-483c2224c491_terseLabel_en-US" xlink:label="lab_srt_OtherCurrencyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other currencies</link:label>
    <link:label id="lab_srt_OtherCurrencyMember_019c29a6-49d1-7a24-842d-93aeb01925ff_verboseLabel_en-US" xlink:label="lab_srt_OtherCurrencyMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other foreign operations</link:label>
    <link:label id="lab_srt_OtherCurrencyMember_label_en-US" xlink:label="lab_srt_OtherCurrencyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Currency [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OtherCurrencyMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_OtherCurrencyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_OtherCurrencyMember" xlink:to="lab_srt_OtherCurrencyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_Sterling1000PreferenceSharesMember_019c29a6-4930-7971-8930-0441cab21eca_terseLabel_en-US" xlink:label="lab_bbplc_Sterling1000PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GBP1 preference shares</link:label>
    <link:label id="lab_bbplc_Sterling1000PreferenceSharesMember_label_en-US" xlink:label="lab_bbplc_Sterling1000PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sterling 1,000 Preference Shares [Member]</link:label>
    <link:label id="lab_bbplc_Sterling1000PreferenceSharesMember_documentation_en-US" xlink:label="lab_bbplc_Sterling1000PreferenceSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands fot the one thousand sterling cumulative callable preference shares.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_Sterling1000PreferenceSharesMember" xlink:href="bbplc-20251231.xsd#bbplc_Sterling1000PreferenceSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_Sterling1000PreferenceSharesMember" xlink:to="lab_bbplc_Sterling1000PreferenceSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ContractualCarryingAmountDueOnMaturityMember_019c29a6-4827-77ff-bfaa-69d5dd6cb76a_terseLabel_en-US" xlink:label="lab_bbplc_ContractualCarryingAmountDueOnMaturityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contractual amount due on maturity</link:label>
    <link:label id="lab_bbplc_ContractualCarryingAmountDueOnMaturityMember_label_en-US" xlink:label="lab_bbplc_ContractualCarryingAmountDueOnMaturityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contractual Carrying Amount Due On Maturity [Member]</link:label>
    <link:label id="lab_bbplc_ContractualCarryingAmountDueOnMaturityMember_documentation_en-US" xlink:label="lab_bbplc_ContractualCarryingAmountDueOnMaturityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the component contractually required to pay at maturity to the holder of the obligation.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ContractualCarryingAmountDueOnMaturityMember" xlink:href="bbplc-20251231.xsd#bbplc_ContractualCarryingAmountDueOnMaturityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ContractualCarryingAmountDueOnMaturityMember" xlink:to="lab_bbplc_ContractualCarryingAmountDueOnMaturityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_019c29a6-4930-7769-bb12-9d5746ecf873_verboseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial instruments</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_019c29a6-4930-762d-b477-efa0cc1db5db_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Derivative liabilities</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_019c29a6-4930-72b9-8059-301c5e2f1961_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialLiabilities" xlink:to="lab_ifrs-full_DerivativeFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OperatingIncome_019c29a6-48ae-7e3a-b2fc-6c9234eb3835_totalLabel_en-US" xlink:label="lab_bbplc_OperatingIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total income</link:label>
    <link:label id="lab_bbplc_OperatingIncome_019c29a6-48ae-72b9-837e-5920f7fd0008_terseLabel_en-US" xlink:label="lab_bbplc_OperatingIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Income</link:label>
    <link:label id="lab_bbplc_OperatingIncome_label_en-US" xlink:label="lab_bbplc_OperatingIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Income</link:label>
    <link:label id="lab_bbplc_OperatingIncome_documentation_en-US" xlink:label="lab_bbplc_OperatingIncome" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OperatingIncome" xlink:href="bbplc-20251231.xsd#bbplc_OperatingIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OperatingIncome" xlink:to="lab_bbplc_OperatingIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable_019c29a6-4931-7623-ae38-bf920dc59594_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OrdinarySharesMember_019c29a6-4828-7c97-87ee-d9e9f2862827_terseLabel_en-US" xlink:label="lab_ifrs-full_OrdinarySharesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ordinary share capital</link:label>
    <link:label id="lab_ifrs-full_OrdinarySharesMember_label_en-US" xlink:label="lab_ifrs-full_OrdinarySharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ordinary shares [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OrdinarySharesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OrdinarySharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OrdinarySharesMember" xlink:to="lab_ifrs-full_OrdinarySharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember_019c29a6-4798-7b0d-bc87-c2426f363c3e_verboseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Over three months but not more than six months</link:label>
    <link:label id="lab_ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than three months and not later than six months [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" xlink:to="lab_ifrs-full_LaterThanThreeMonthsAndNotLaterThanSixMonthsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AllowanceForCreditLossesMember_019c29a6-49d1-7607-8997-8a2fe90dce0a_terseLabel_en-US" xlink:label="lab_ifrs-full_AllowanceForCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loan impairment allowance</link:label>
    <link:label id="lab_ifrs-full_AllowanceForCreditLossesMember_label_en-US" xlink:label="lab_ifrs-full_AllowanceForCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Allowance for credit losses [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AllowanceForCreditLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AllowanceForCreditLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AllowanceForCreditLossesMember" xlink:to="lab_ifrs-full_AllowanceForCreditLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CubeSolidusBVMember_019c29a6-4798-741d-8a41-573fadc949d2_terseLabel_en-US" xlink:label="lab_bbplc_CubeSolidusBVMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cube Solidus B.V.</link:label>
    <link:label id="lab_bbplc_CubeSolidusBVMember_label_en-US" xlink:label="lab_bbplc_CubeSolidusBVMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cube Solidus BV [Member]</link:label>
    <link:label id="lab_bbplc_CubeSolidusBVMember_documentation_en-US" xlink:label="lab_bbplc_CubeSolidusBVMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cube Solidus BV</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CubeSolidusBVMember" xlink:href="bbplc-20251231.xsd#bbplc_CubeSolidusBVMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CubeSolidusBVMember" xlink:to="lab_bbplc_CubeSolidusBVMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_019c29a6-49d1-79d6-a6c6-e365b77b11f5_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities included in disposal group classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_019c29a6-49d1-7f42-8086-cb9609963dce_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Liabilities included in disposal groups classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_019c29a6-49d1-7072-91d3-0852131f7439_totalLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities included in disposal groups classified as held for sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:to="lab_ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_019c29a6-48ae-7ae6-8ab3-634cba844e1e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor's remuneration</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of auditors' remuneration [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAuditorsRemunerationExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAuditorsRemunerationExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_019c29a6-49d1-7e3a-a6f6-ae6948199217_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross exposure</link:label>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_019c29a6-49d1-77b2-9c7c-d7b80508565c_netLabel_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Carrying amount</link:label>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_019c29a6-49d1-7364-b58f-984603110139_verboseLabel_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cost</link:label>
    <link:label id="lab_ifrs-full_GrossCarryingAmountMember_label_en-US" xlink:label="lab_ifrs-full_GrossCarryingAmountMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross carrying amount [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossCarryingAmountMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossCarryingAmountMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossCarryingAmountMember" xlink:to="lab_ifrs-full_GrossCarryingAmountMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ApplicableTaxRate_019c29a6-49d1-7466-9dce-721d93b4dc21_terseLabel_en-US" xlink:label="lab_ifrs-full_ApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">UK Corporation tax rate</link:label>
    <link:label id="lab_ifrs-full_ApplicableTaxRate_label_en-US" xlink:label="lab_ifrs-full_ApplicableTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Applicable tax rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ApplicableTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ApplicableTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ApplicableTaxRate" xlink:to="lab_ifrs-full_ApplicableTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember_019c29a6-49d1-7ba3-8698-28787853e363_terseLabel_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember_label_en-US" xlink:label="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total for all individual assets or cash-generating units [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember" xlink:to="lab_ifrs-full_IndividualAssetsOrCashgeneratingUnitsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AuditorsRemunerationAbstract_019c29a6-49d1-700b-92ce-32f8d65976d3_terseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor's remuneration [abstract]</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemunerationAbstract_label_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor's remuneration [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AuditorsRemunerationAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AuditorsRemunerationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AuditorsRemunerationAbstract" xlink:to="lab_ifrs-full_AuditorsRemunerationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities_019c29a6-49d1-7f80-9f9c-7c6861c6b45e_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net decrease in other liabilities</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities_019c29a6-49d1-74ab-9be9-c37e89b494aa_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net decrease in other liabilities</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInOtherLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromIssuingShares_019c29a6-4828-7012-8bad-2c25555404db_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssuingShares" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Issue of shares and other equity instruments</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromIssuingShares_019c29a6-4828-711d-81be-da9d364f60bb_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssuingShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from issuing shares</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromIssuingShares_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromIssuingShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from issuing shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromIssuingShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromIssuingShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromIssuingShares" xlink:to="lab_ifrs-full_ProceedsFromIssuingShares" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract_019c29a6-4828-7049-a390-6c40e2046471_terseLabel_en-US" xlink:label="lab_ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Administration and general expenses</link:label>
    <link:label id="lab_ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, general and administrative expense [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" xlink:to="lab_ifrs-full_SellingGeneralAndAdministrativeExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EuropeMember_019c29a6-4931-772e-8986-c1614810cb91_terseLabel_en-US" xlink:label="lab_srt_EuropeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Europe</link:label>
    <link:label id="lab_srt_EuropeMember_label_en-US" xlink:label="lab_srt_EuropeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Europe [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EuropeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EuropeMember" xlink:to="lab_srt_EuropeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NotLaterThanOneYearMember_019c29a6-4798-7bb9-be7e-ee7d74ac3b00_verboseLabel_en-US" xlink:label="lab_ifrs-full_NotLaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Not more than one year</link:label>
    <link:label id="lab_ifrs-full_NotLaterThanOneYearMember_label_en-US" xlink:label="lab_ifrs-full_NotLaterThanOneYearMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Not later than one year [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotLaterThanOneYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotLaterThanOneYearMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotLaterThanOneYearMember" xlink:to="lab_ifrs-full_NotLaterThanOneYearMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory_019c29a6-4828-7b01-a05f-d00b1f9304d6_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of remuneration of Directors and other Key Management Personnel</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory"/>
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    <link:label id="lab_ifrs-full_CurrentTaxLiabilities_019c29a6-49d1-7e15-8b77-c73b9db5f52d_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current tax liabilities</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxLiabilities_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxLiabilities" xlink:to="lab_ifrs-full_CurrentTaxLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncome_019c29a6-4828-7842-b05b-112e530a2f47_terseLabel_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fee and commission income</link:label>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncome_019c29a6-4828-7c8e-a31a-da94bbaf2f7a_totalLabel_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Fee and commission income</link:label>
    <link:label id="lab_ifrs-full_FeeAndCommissionIncome_label_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fee and commission income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FeeAndCommissionIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FeeAndCommissionIncome" xlink:to="lab_ifrs-full_FeeAndCommissionIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage_019c29a6-48ae-7d7a-90d4-613bfacfeef2_terseLabel_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio assets, percentage</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage_label_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets At Fair Value Through Profit Or Loss, Classified As Held For Trading, Percentage</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage_documentation_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of financial assets at fair value through profit or loss classified as held for trading, expressed as a percentage. A financial asset is classified as held for trading if: (a) it is acquired principally for the purpose of selling it in the near term; (b) on initial recognition it is part of a portfolio of identified financial instruments that are managed together and for which there is evidence of a recent actual pattern of short-term profit-taking; or (c) it is a derivative (except for a derivative that is a financial guarantee contract or a designated and effective hedging instrument). [Refer: At fair value [member]; Financial assets at fair value through profit or loss]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage" xlink:href="bbplc-20251231.xsd#bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage" xlink:to="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AuditorsRemuneration_019c29a6-4931-7d6d-b756-ce3098d27983_totalLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemuneration" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Auditor's remuneration</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemuneration_label_en-US" xlink:label="lab_ifrs-full_AuditorsRemuneration" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor's remuneration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AuditorsRemuneration" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AuditorsRemuneration"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AuditorsRemuneration" xlink:to="lab_ifrs-full_AuditorsRemuneration" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NotLaterThanTenYearsMember_019c29a6-49d1-7877-8b18-9fec0d43306e_terseLabel_en-US" xlink:label="lab_bbplc_NotLaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Within 10 years</link:label>
    <link:label id="lab_bbplc_NotLaterThanTenYearsMember_label_en-US" xlink:label="lab_bbplc_NotLaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Not Later Than Ten Years [Member]</link:label>
    <link:label id="lab_bbplc_NotLaterThanTenYearsMember_documentation_en-US" xlink:label="lab_bbplc_NotLaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a time band of not later than ten years.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NotLaterThanTenYearsMember" xlink:href="bbplc-20251231.xsd#bbplc_NotLaterThanTenYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NotLaterThanTenYearsMember" xlink:to="lab_bbplc_NotLaterThanTenYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember_019c29a6-4798-7a24-836e-141d1cfe099f_terseLabel_en-US" xlink:label="lab_ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">UKRF</link:label>
    <link:label id="lab_ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember_label_en-US" xlink:label="lab_ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined benefit plans other than multi-employer plans, state plans and plans that share risks between entities under common control [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xlink:to="lab_ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentMember_019c29a6-4931-7467-83cc-896a84998e98_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentMember_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentMember" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition_019c29a6-4930-7da9-bd63-0ebb78c74400_totalLabel_en-US" xlink:label="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net amounts reported on the balance sheet</link:label>
    <link:label id="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition_label_en-US" xlink:label="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:to="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems_019c29a6-48ae-7935-bbe4-4f4d7cbebc35_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_019c29a6-49d1-7d74-ab50-954bfd9fb243_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable_019c29a6-49d1-720c-a6a4-3dbf35baf327_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersExposureToCreditRisk_019c29a6-4930-7842-9210-737e5085e3f8_negatedLabel_en-US" xlink:label="lab_bbplc_TransfersExposureToCreditRisk" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Risk transfer</link:label>
    <link:label id="lab_bbplc_TransfersExposureToCreditRisk_label_en-US" xlink:label="lab_bbplc_TransfersExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers Exposure To Credit Risk</link:label>
    <link:label id="lab_bbplc_TransfersExposureToCreditRisk_documentation_en-US" xlink:label="lab_bbplc_TransfersExposureToCreditRisk" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of transfers for exposure to credit risk.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersExposureToCreditRisk" xlink:href="bbplc-20251231.xsd#bbplc_TransfersExposureToCreditRisk"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersExposureToCreditRisk" xlink:to="lab_bbplc_TransfersExposureToCreditRisk" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RetailPortfoliosMember_019c29a6-48ae-757c-b111-cd0525c7bb36_terseLabel_en-US" xlink:label="lab_bbplc_RetailPortfoliosMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retail portfolios</link:label>
    <link:label id="lab_bbplc_RetailPortfoliosMember_label_en-US" xlink:label="lab_bbplc_RetailPortfoliosMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retail Portfolios [member]</link:label>
    <link:label id="lab_bbplc_RetailPortfoliosMember_documentation_en-US" xlink:label="lab_bbplc_RetailPortfoliosMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the retail portfolios of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RetailPortfoliosMember" xlink:href="bbplc-20251231.xsd#bbplc_RetailPortfoliosMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RetailPortfoliosMember" xlink:to="lab_bbplc_RetailPortfoliosMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember_019c29a6-4828-79f1-bb47-be00b0e50c8a_terseLabel_en-US" xlink:label="lab_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">In years 20 to 30</link:label>
    <link:label id="lab_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember_label_en-US" xlink:label="lab_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later Than Twenty Years And Not Later Than Thirty Years [Member]</link:label>
    <link:label id="lab_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember_documentation_en-US" xlink:label="lab_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a time band of later than twenty years and not later than thirty years.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember" xlink:href="bbplc-20251231.xsd#bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember" xlink:to="lab_bbplc_LaterThanTwentyYearsAndNotLaterThanThirtyYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_AmericasMember_019c29a6-4931-7e9e-ba7b-b77180b3538a_terseLabel_en-US" xlink:label="lab_srt_AmericasMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Americas</link:label>
    <link:label id="lab_srt_AmericasMember_label_en-US" xlink:label="lab_srt_AmericasMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Americas [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AmericasMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_AmericasMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_AmericasMember" xlink:to="lab_srt_AmericasMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract_019c29a6-4828-7792-9a27-0aec2000365d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of ECL movement to impairment (charge)/release for the period, Loans and advances at amortised cost</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss and reversal of impairment loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xlink:to="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AdditionalTier1SecuritiesMember_019c29a6-4828-78d7-92de-7dc79d965a3f_terseLabel_en-US" xlink:label="lab_bbplc_AdditionalTier1SecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AT1 Securities</link:label>
    <link:label id="lab_bbplc_AdditionalTier1SecuritiesMember_019c29a6-4828-7c23-bb8c-ea9eeb3aec07_verboseLabel_en-US" xlink:label="lab_bbplc_AdditionalTier1SecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">AT1 equity instruments</link:label>
    <link:label id="lab_bbplc_AdditionalTier1SecuritiesMember_label_en-US" xlink:label="lab_bbplc_AdditionalTier1SecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Tier 1 Securities [Member]</link:label>
    <link:label id="lab_bbplc_AdditionalTier1SecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_AdditionalTier1SecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Additional Tier one securities. They are perpetual securities with no fixed maturity and are structured to qualify as AT1 instruments under CRR as amended by CRR II. They are non-common equity securities that are eligible as AT1 capital.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AdditionalTier1SecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_AdditionalTier1SecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AdditionalTier1SecuritiesMember" xlink:to="lab_bbplc_AdditionalTier1SecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows_019c29a6-48ae-7638-92d7-6a2604b2013a_terseLabel_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities, undiscounted</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows_label_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Liabilities, Undiscounted Cash Flows</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows_documentation_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to subordinated liabilities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows" xlink:href="bbplc-20251231.xsd#bbplc_SubordinatedLiabilitiesUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows" xlink:to="lab_bbplc_SubordinatedLiabilitiesUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_USDLIBORActionsMember_019c29a6-48ae-7385-af35-f2b55fa967a3_terseLabel_en-US" xlink:label="lab_bbplc_USDLIBORActionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">USD LIBOR Actions</link:label>
    <link:label id="lab_bbplc_USDLIBORActionsMember_label_en-US" xlink:label="lab_bbplc_USDLIBORActionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">USD LIBOR Actions [Member]</link:label>
    <link:label id="lab_bbplc_USDLIBORActionsMember_documentation_en-US" xlink:label="lab_bbplc_USDLIBORActionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">USD LIBOR Actions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_USDLIBORActionsMember" xlink:href="bbplc-20251231.xsd#bbplc_USDLIBORActionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_USDLIBORActionsMember" xlink:to="lab_bbplc_USDLIBORActionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ShareBasedPaymentVestingPeriod_019c3071-4b5c-7927-ae66-2ea5b4a9b72e_terseLabel_en-US" xlink:label="lab_bbplc_ShareBasedPaymentVestingPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period</link:label>
    <link:label id="lab_bbplc_ShareBasedPaymentVestingPeriod_label_en-US" xlink:label="lab_bbplc_ShareBasedPaymentVestingPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Payment, Vesting Period</link:label>
    <link:label id="lab_bbplc_ShareBasedPaymentVestingPeriod_documentation_en-US" xlink:label="lab_bbplc_ShareBasedPaymentVestingPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share-Based Payment, Vesting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ShareBasedPaymentVestingPeriod" xlink:href="bbplc-20251231.xsd#bbplc_ShareBasedPaymentVestingPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ShareBasedPaymentVestingPeriod" xlink:to="lab_bbplc_ShareBasedPaymentVestingPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member_019c29a6-4828-7381-8766-89c042eca54f_terseLabel_en-US" xlink:label="lab_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">3.75% Fixed Rate Resetting Subordinated Callable Notes (SGD 200m)</link:label>
    <link:label id="lab_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member_label_en-US" xlink:label="lab_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">3.75% Resetting Subordinated Callable Notes, Due 2030 [Member]</link:label>
    <link:label id="lab_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member_documentation_en-US" xlink:label="lab_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the resetting Subordinated Notes, maturing in 2030 and denominated in Singapore, Dollars currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member" xlink:href="bbplc-20251231.xsd#bbplc_A375ResettingSubordinatedCallableNotesDue2030Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member" xlink:to="lab_bbplc_A375ResettingSubordinatedCallableNotesDue2030Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember_019c29a6-4827-7d94-8e91-9be230a3d9d9_terseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other products</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember_label_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Assets And Liabilities Group One [Member]</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember_documentation_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for commercial real estate loans, asset backed loans, funds and fund-linked products, issued debt, government sponsored debt and investment property.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember" xlink:to="lab_bbplc_OtherFinancialAssetsAndLiabilitiesGroupOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable_019c29a6-4930-7293-bc27-76f2abdaf3f1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of risk management strategy related to hedge accounting [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of risk management strategy related to hedge accounting [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable" xlink:to="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_019c29a6-49d1-7ef0-b590-ed11191b05c7_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Gross amounts</link:label>
    <link:label id="lab_ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_label_en-US" xlink:label="lab_ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:to="lab_ifrs-full_GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MortgagesMember_019c29a6-49d1-716f-9610-7e06fe48d1b9_terseLabel_en-US" xlink:label="lab_ifrs-full_MortgagesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retail mortgages</link:label>
    <link:label id="lab_ifrs-full_MortgagesMember_label_en-US" xlink:label="lab_ifrs-full_MortgagesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mortgages [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MortgagesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MortgagesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MortgagesMember" xlink:to="lab_ifrs-full_MortgagesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ConsumerLoansMember_019c29a6-4828-7af0-94c0-45d6e83c4bd2_terseLabel_en-US" xlink:label="lab_ifrs-full_ConsumerLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issued debt</link:label>
    <link:label id="lab_ifrs-full_ConsumerLoansMember_label_en-US" xlink:label="lab_ifrs-full_ConsumerLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans to consumers [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ConsumerLoansMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ConsumerLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ConsumerLoansMember" xlink:to="lab_ifrs-full_ConsumerLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory_019c29a6-4798-7ed0-85ad-3ffe1a9a85d4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of lease liabilities and maturity analysis</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of additional information about leasing activities for lessee [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAdditionalInformationAboutLeasingActivitiesForLesseeExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FloatingInterestRateMember_019c29a6-49d1-7464-9034-72c9e841fb98_terseLabel_en-US" xlink:label="lab_ifrs-full_FloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Floating interest rate</link:label>
    <link:label id="lab_ifrs-full_FloatingInterestRateMember_label_en-US" xlink:label="lab_ifrs-full_FloatingInterestRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Floating interest rate [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FloatingInterestRateMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FloatingInterestRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FloatingInterestRateMember" xlink:to="lab_ifrs-full_FloatingInterestRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HousePriceIndexEconomicCoreVariableMember_019c29a6-48ae-75cf-907c-f1ecb6fa622e_terseLabel_en-US" xlink:label="lab_bbplc_HousePriceIndexEconomicCoreVariableMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">HPI</link:label>
    <link:label id="lab_bbplc_HousePriceIndexEconomicCoreVariableMember_label_en-US" xlink:label="lab_bbplc_HousePriceIndexEconomicCoreVariableMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">House Price Index, Economic Core Variable [Member]</link:label>
    <link:label id="lab_bbplc_HousePriceIndexEconomicCoreVariableMember_documentation_en-US" xlink:label="lab_bbplc_HousePriceIndexEconomicCoreVariableMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the House Price Index, a key historic macroeconomic core variable. The House Price Index is compared against the forecast paths of the probability weights for each scenario, demonstrating 5 year cumulative growth in Upside scenarios; 5 year average in Baseline; cumulative fall (peak-to-trough) in Downside scenarios.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HousePriceIndexEconomicCoreVariableMember" xlink:href="bbplc-20251231.xsd#bbplc_HousePriceIndexEconomicCoreVariableMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HousePriceIndexEconomicCoreVariableMember" xlink:to="lab_bbplc_HousePriceIndexEconomicCoreVariableMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RepaymentsOfSubordinatedLiabilities_019c29a6-4828-7e0a-9e12-3e76d45ab7a1_negatedLabel_en-US" xlink:label="lab_ifrs-full_RepaymentsOfSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Redemption of subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_RepaymentsOfSubordinatedLiabilities_019c29a6-4828-778d-a234-63b692b8c9d3_terseLabel_en-US" xlink:label="lab_ifrs-full_RepaymentsOfSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redemption of subordinated debt</link:label>
    <link:label id="lab_ifrs-full_RepaymentsOfSubordinatedLiabilities_label_en-US" xlink:label="lab_ifrs-full_RepaymentsOfSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of subordinated liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfSubordinatedLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfSubordinatedLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepaymentsOfSubordinatedLiabilities" xlink:to="lab_ifrs-full_RepaymentsOfSubordinatedLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets_019c29a6-4828-7a12-9179-df77a747c8d4_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity instruments</link:label>
    <link:label id="lab_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets_019c29a6-4828-7ab3-9141-71c692c7dc67_verboseLabel_en-US" xlink:label="lab_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Equities</link:label>
    <link:label id="lab_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity instruments, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:to="lab_ifrs-full_EquityInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UnderwritingSyndicationAndCommitmentFeesMember_019c29a6-4930-7c33-b805-76731fe51d56_terseLabel_en-US" xlink:label="lab_bbplc_UnderwritingSyndicationAndCommitmentFeesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Underwriting and syndication</link:label>
    <link:label id="lab_bbplc_UnderwritingSyndicationAndCommitmentFeesMember_label_en-US" xlink:label="lab_bbplc_UnderwritingSyndicationAndCommitmentFeesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Underwriting, Syndication And Commitment Fees [Member]</link:label>
    <link:label id="lab_bbplc_UnderwritingSyndicationAndCommitmentFeesMember_documentation_en-US" xlink:label="lab_bbplc_UnderwritingSyndicationAndCommitmentFeesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for fees which are earned for the distribution of client equity or debt securities, which includes a commitment to purchase such securities if they are not sold to third parties. Syndication and commitment fees include the arrangement and administration of a loan syndication, which includes a commitment to provide the loan if it is not sold to third parties.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UnderwritingSyndicationAndCommitmentFeesMember" xlink:href="bbplc-20251231.xsd#bbplc_UnderwritingSyndicationAndCommitmentFeesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UnderwritingSyndicationAndCommitmentFeesMember" xlink:to="lab_bbplc_UnderwritingSyndicationAndCommitmentFeesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis_019c29a6-4827-7824-b418-6310ef790e54_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ClearedByCentralCounterpartyMember_019c29a6-4930-73ca-b833-7c43e8226024_terseLabel_en-US" xlink:label="lab_bbplc_ClearedByCentralCounterpartyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivatives cleared by central counterparty</link:label>
    <link:label id="lab_bbplc_ClearedByCentralCounterpartyMember_label_en-US" xlink:label="lab_bbplc_ClearedByCentralCounterpartyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cleared By Central Counterparty [Member]</link:label>
    <link:label id="lab_bbplc_ClearedByCentralCounterpartyMember_documentation_en-US" xlink:label="lab_bbplc_ClearedByCentralCounterpartyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for derivatives cleared by central counterparty.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ClearedByCentralCounterpartyMember" xlink:href="bbplc-20251231.xsd#bbplc_ClearedByCentralCounterpartyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ClearedByCentralCounterpartyMember" xlink:to="lab_bbplc_ClearedByCentralCounterpartyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_019c29a6-4828-7ec0-ba32-ce4beace0306_terseLabel_en-US" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Major components of tax expense (income) [abstract]</link:label>
    <link:label id="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major components of tax expense (income) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:to="lab_ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReservesWithinEquityDomain_019c29a6-4930-781a-9fde-9e565b4fe33c_verboseLabel_en-US" xlink:label="lab_ifrs-full_ReservesWithinEquityDomain" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Reserves within equity [domain]</link:label>
    <link:label id="lab_ifrs-full_ReservesWithinEquityDomain_label_en-US" xlink:label="lab_ifrs-full_ReservesWithinEquityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserves within equity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReservesWithinEquityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReservesWithinEquityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReservesWithinEquityDomain" xlink:to="lab_ifrs-full_ReservesWithinEquityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NetPensionCostTableTextBlock_019c29a6-4827-7a56-8e66-38cf0c3593e3_verboseLabel_en-US" xlink:label="lab_bbplc_NetPensionCostTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of income statement charge</link:label>
    <link:label id="lab_bbplc_NetPensionCostTableTextBlock_label_en-US" xlink:label="lab_bbplc_NetPensionCostTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Pension Cost [Table Text Block]</link:label>
    <link:label id="lab_bbplc_NetPensionCostTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_NetPensionCostTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of net pension cost.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NetPensionCostTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_NetPensionCostTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NetPensionCostTableTextBlock" xlink:to="lab_bbplc_NetPensionCostTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement_019c29a6-4931-7ed1-b97c-ca51e368363d_totalLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement"/>
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    <link:label id="lab_ifrs-full_EquityAbstract_019c29a6-4828-71af-af41-3ee85442bf82_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:label id="lab_ifrs-full_EquityAbstract_label_en-US" xlink:label="lab_ifrs-full_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityAbstract" xlink:to="lab_ifrs-full_EquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsAbstract_019c29a6-49d1-7352-b8cb-e95cdcdde69f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments_019c29a6-4828-73af-adce-2615d45c3afd_totalLabel_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Structural currency exposures pre- economic hedges</link:label>
    <link:label id="lab_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments_label_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Structural Currency Exposure, Before Hedging Instruments</link:label>
    <link:label id="lab_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments_documentation_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of structural currency exposures which are before economic hedges.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments" xlink:href="bbplc-20251231.xsd#bbplc_StructuralCurrencyExposureBeforeHedgingInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments" xlink:to="lab_bbplc_StructuralCurrencyExposureBeforeHedgingInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherInvestmentIncome_019c29a6-4930-7f76-8f38-72e5209bd8ab_verboseLabel_en-US" xlink:label="lab_bbplc_OtherInvestmentIncome" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net losses on other investments</link:label>
    <link:label id="lab_bbplc_OtherInvestmentIncome_label_en-US" xlink:label="lab_bbplc_OtherInvestmentIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Investment Income</link:label>
    <link:label id="lab_bbplc_OtherInvestmentIncome_documentation_en-US" xlink:label="lab_bbplc_OtherInvestmentIncome" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of investment income that the entity does not separately disclose in the same statement or note.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherInvestmentIncome" xlink:href="bbplc-20251231.xsd#bbplc_OtherInvestmentIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherInvestmentIncome" xlink:to="lab_bbplc_OtherInvestmentIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ContractualBackstopLiquidityFacilitiesMember_019c29a6-4828-74d7-9751-3a2b6e018f74_terseLabel_en-US" xlink:label="lab_bbplc_ContractualBackstopLiquidityFacilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contractual backstop liquidity facilities</link:label>
    <link:label id="lab_bbplc_ContractualBackstopLiquidityFacilitiesMember_label_en-US" xlink:label="lab_bbplc_ContractualBackstopLiquidityFacilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contractual Backstop Liquidity Facilities [Member]</link:label>
    <link:label id="lab_bbplc_ContractualBackstopLiquidityFacilitiesMember_documentation_en-US" xlink:label="lab_bbplc_ContractualBackstopLiquidityFacilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for contractual Backstop Liquidity Facilities that would be utilised to refinance the debt obligations of a customer in situations where such a customer is unable to rollover that debt in financial markets.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ContractualBackstopLiquidityFacilitiesMember" xlink:href="bbplc-20251231.xsd#bbplc_ContractualBackstopLiquidityFacilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ContractualBackstopLiquidityFacilitiesMember" xlink:to="lab_bbplc_ContractualBackstopLiquidityFacilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CorporateClientTurnoverThreshold_019c29a6-4798-7a6f-8923-23cf61eee213_terseLabel_en-US" xlink:label="lab_bbplc_CorporateClientTurnoverThreshold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate client turnover threshold</link:label>
    <link:label id="lab_bbplc_CorporateClientTurnoverThreshold_label_en-US" xlink:label="lab_bbplc_CorporateClientTurnoverThreshold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate Client Turnover Threshold</link:label>
    <link:label id="lab_bbplc_CorporateClientTurnoverThreshold_documentation_en-US" xlink:label="lab_bbplc_CorporateClientTurnoverThreshold" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Corporate Client Turnover Threshold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CorporateClientTurnoverThreshold" xlink:href="bbplc-20251231.xsd#bbplc_CorporateClientTurnoverThreshold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CorporateClientTurnoverThreshold" xlink:to="lab_bbplc_CorporateClientTurnoverThreshold" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets_019c29a6-49d1-7933-a97d-d821d385473b_negatedLabel_en-US" xlink:label="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Non-cash collateral</link:label>
    <link:label id="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets_019c29a6-49d1-73a7-93e8-eb4d5d9aae73_terseLabel_en-US" xlink:label="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-cash collateral</link:label>
    <link:label id="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets_label_en-US" xlink:label="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Cash Collateral Received Subject To Enforceable Master Netting Arrangements Or Similar Agreement Not Set Off Against Financial Assets</link:label>
    <link:label id="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets_documentation_en-US" xlink:label="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of non-cash collateral received that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial assets. [Refer: Financial assets]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:href="bbplc-20251231.xsd#bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:to="lab_bbplc_NonCashCollateralReceivedSubjectToEnforceableMasterNettingArrangementsOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod_019c42ca-72c9-7755-8113-7a4634379247_terseLabel_en-US" xlink:label="lab_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets re-classification from unquoted to quoted</link:label>
    <link:label id="lab_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod_label_en-US" xlink:label="lab_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers Out Of Level 2 Or 3 Into Level 1 Fair Value Hierarchy, Assets Held At End Of Reporting Period</link:label>
    <link:label id="lab_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod_documentation_en-US" xlink:label="lab_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Transfers Out Of Level 2 Or 3 Into Level 1 Fair Value Hierarchy, Assets Held At End Of Reporting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod" xlink:href="bbplc-20251231.xsd#bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod" xlink:to="lab_bbplc_TransfersOutOfLevel2Or3IntoLevel1FairValueHierarchyAssetsHeldAtEndOfReportingPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets_019c29a6-48ae-7fc1-877c-e11bab6922d5_negatedLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Recoveries and reimbursements</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Recoveries And Reimbursements, Financial Assets</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Recoveries And Reimbursements, Financial Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets" xlink:to="lab_bbplc_IncreaseDecreaseThroughRecoveriesAndReimbursementsFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract_019c29a6-4930-7f32-bafd-adccca6fbc1d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xlink:to="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BXMember_019c29a6-4798-706e-8764-b14112734116_terseLabel_en-US" xlink:label="lab_bbplc_BXMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BX</link:label>
    <link:label id="lab_bbplc_BXMember_label_en-US" xlink:label="lab_bbplc_BXMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BX [Member]</link:label>
    <link:label id="lab_bbplc_BXMember_documentation_en-US" xlink:label="lab_bbplc_BXMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BX</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BXMember" xlink:href="bbplc-20251231.xsd#bbplc_BXMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BXMember" xlink:to="lab_bbplc_BXMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory_019c29a6-4828-7c3b-884b-5bd9051ac4f0_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for net investment (expense)/income</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for dividends [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForDividendsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_019c29a6-48ae-704a-8045-e4ebc668e73e_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_019c29a6-48ae-70c6-b07b-e536b6ec712f_verboseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-current assets/liabilities held for sale</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:to="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_019c29a6-4827-73f3-8a2d-cb4794c69b23_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value through other comprehensive income reserve</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ECLEconomicScenarioAxis_019c29a6-4930-7f00-910c-50cfa960fbec_terseLabel_en-US" xlink:label="lab_bbplc_ECLEconomicScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL Economic Scenario [Axis]</link:label>
    <link:label id="lab_bbplc_ECLEconomicScenarioAxis_label_en-US" xlink:label="lab_bbplc_ECLEconomicScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ECL Economic Scenario [Axis]</link:label>
    <link:label id="lab_bbplc_ECLEconomicScenarioAxis_documentation_en-US" xlink:label="lab_bbplc_ECLEconomicScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ECL Economic Scenario</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ECLEconomicScenarioAxis" xlink:href="bbplc-20251231.xsd#bbplc_ECLEconomicScenarioAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ECLEconomicScenarioAxis" xlink:to="lab_bbplc_ECLEconomicScenarioAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019c29a6-4930-70b0-9103-27052d7cf338_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_019c29a6-4930-706e-8649-a79f1ed1af5c_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions_019c29a6-48ae-7370-8e0d-6c34e999be43_terseLabel_en-US" xlink:label="lab_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivatives transacted</link:label>
    <link:label id="lab_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions_label_en-US" xlink:label="lab_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Transactions During Period Related Party Transactions</link:label>
    <link:label id="lab_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions_documentation_en-US" xlink:label="lab_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of derivative transactions during the period for related party transactions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions" xlink:href="bbplc-20251231.xsd#bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions" xlink:to="lab_bbplc_DerivativeTransactionsDuringPeriodRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_019c29a6-4828-70cc-be3f-eaed3a275411_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net gains on financial instruments mandatorily at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_019c29a6-4828-74b8-8a04-ef328db235d2_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial assets mandatorily at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, mandatorily measured at fair value, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember_019c29a6-49d1-736c-bdae-9cfd147cadbd_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IR - Inflation correlation</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default, Measurement Input, Inflation Correlation [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Probability Of Default, Measurement Input, Inflation Correlation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember" xlink:to="lab_bbplc_ProbabilityOfDefaultMeasurementInputInflationCorrelationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfLeases_019c29a6-4930-7bbd-a0ae-8709909cd435_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfLeases" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of leases</link:label>
    <link:label id="lab_bbplc_NumberOfLeases_label_en-US" xlink:label="lab_bbplc_NumberOfLeases" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Leases</link:label>
    <link:label id="lab_bbplc_NumberOfLeases_documentation_en-US" xlink:label="lab_bbplc_NumberOfLeases" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of leases held by the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfLeases" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfLeases"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfLeases" xlink:to="lab_bbplc_NumberOfLeases" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ScenarioWeighting_019c29a6-4798-70d4-ba59-75dfa4e54d07_terseLabel_en-US" xlink:label="lab_bbplc_ScenarioWeighting" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scenario probability weighting</link:label>
    <link:label id="lab_bbplc_ScenarioWeighting_label_en-US" xlink:label="lab_bbplc_ScenarioWeighting" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario Weighting</link:label>
    <link:label id="lab_bbplc_ScenarioWeighting_documentation_en-US" xlink:label="lab_bbplc_ScenarioWeighting" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The scenario probability weighting, expressed as a percentage and normalised to equate to 100%. The methodology works such that the baseline (reflecting current consensus outlook) has the highest weight and the weights of adverse and favourable scenarios depend on the deviation from the baseline; the further from the baseline, the smaller the weight.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ScenarioWeighting" xlink:href="bbplc-20251231.xsd#bbplc_ScenarioWeighting"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ScenarioWeighting" xlink:to="lab_bbplc_ScenarioWeighting" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_019c29a6-49d1-7fa2-893e-2dfc779ded15_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of temporary difference, unused tax losses and unused tax credits [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:to="lab_ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ParentMember_019c29a6-48ae-720d-8f25-70f2771111b0_terseLabel_en-US" xlink:label="lab_ifrs-full_ParentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays PLC</link:label>
    <link:label id="lab_ifrs-full_ParentMember_019c29a6-48ae-7012-812b-40e70d6c0c2f_verboseLabel_en-US" xlink:label="lab_ifrs-full_ParentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Parent</link:label>
    <link:label id="lab_ifrs-full_ParentMember_label_en-US" xlink:label="lab_ifrs-full_ParentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Parent [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ParentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ParentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ParentMember" xlink:to="lab_ifrs-full_ParentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainLossOnChangeInFairValueOfHedgingInstrumentUsedAsBasisForRecognisingHedgeIneffectiveness_019c29a6-4930-75bb-a741-13adab5e0731_terseLabel_en-US" xlink:label="lab_ifrs-full_GainLossOnChangeInFairValueOfHedgingInstrumentUsedAsBasisForRecognisingHedgeIneffectiveness" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change in fair value used as a basis to determine ineffectiveness</link:label>
    <link:label id="lab_ifrs-full_GainLossOnChangeInFairValueOfHedgingInstrumentUsedAsBasisForRecognisingHedgeIneffectiveness_label_en-US" xlink:label="lab_ifrs-full_GainLossOnChangeInFairValueOfHedgingInstrumentUsedAsBasisForRecognisingHedgeIneffectiveness" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) on change in fair value of hedging instrument used as basis for recognising hedge ineffectiveness</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossOnChangeInFairValueOfHedgingInstrumentUsedAsBasisForRecognisingHedgeIneffectiveness" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnChangeInFairValueOfHedgingInstrumentUsedAsBasisForRecognisingHedgeIneffectiveness"/>
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    <link:label id="lab_ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory_019c29a6-4931-79b1-907b-261220d7c73e_terseLabel_en-US" xlink:label="lab_ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of concentrations of credit risk by industry and geography</link:label>
    <link:label id="lab_ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory_label_en-US" xlink:label="lab_ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Explanation of credit risk management practices and how they relate to recognition and measurement of expected credit losses [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory" xlink:to="lab_ifrs-full_ExplanationOfCreditRiskManagementPracticesAndHowTheyRelateToRecognitionAndMeasurementOfExpectedCreditLossesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AuditorFirmId_019c29a6-4931-7a77-b245-42de54dddcee_terseLabel_en-US" xlink:label="lab_dei_AuditorFirmId" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor Firm ID</link:label>
    <link:label id="lab_dei_AuditorFirmId_label_en-US" xlink:label="lab_dei_AuditorFirmId" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Firm ID</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorFirmId" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorFirmId"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorFirmId" xlink:to="lab_dei_AuditorFirmId" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits_019c29a6-49d1-7eca-b985-0241a0a00a35_terseLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pension costs</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, post-employment benefits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationPostemploymentBenefits" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale_019c29a6-4828-7b2f-b869-2262c06fc8d7_totalLabel_en-US" xlink:label="lab_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net assets classified as held for sale</link:label>
    <link:label id="lab_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale_label_en-US" xlink:label="lab_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Assets (Liabilities) Or Disposal Groups Classified As Held For Sale</link:label>
    <link:label id="lab_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale_documentation_en-US" xlink:label="lab_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net Assets (Liabilities) Or Disposal Groups Classified As Held For Sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale" xlink:href="bbplc-20251231.xsd#bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale" xlink:to="lab_bbplc_NetAssetsLiabilitiesOrDisposalGroupsClassifiedAsHeldForSale" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfContingentLiabilitiesAbstract_019c29a6-48ae-7afa-9b54-1fc9121dfe0e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of contingent liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfContingentLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of contingent liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContingentLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xlink:to="lab_ifrs-full_DisclosureOfContingentLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysCapitalAsiaLimitedBCALMember_019c29a6-4798-7c33-a1eb-677631228eaf_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysCapitalAsiaLimitedBCALMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Capital Asia Limited (BCAL)</link:label>
    <link:label id="lab_bbplc_BarclaysCapitalAsiaLimitedBCALMember_label_en-US" xlink:label="lab_bbplc_BarclaysCapitalAsiaLimitedBCALMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Capital Asia Limited (BCAL) [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysCapitalAsiaLimitedBCALMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysCapitalAsiaLimitedBCALMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Capital Asia Limited (BCAL)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysCapitalAsiaLimitedBCALMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysCapitalAsiaLimitedBCALMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysCapitalAsiaLimitedBCALMember" xlink:to="lab_bbplc_BarclaysCapitalAsiaLimitedBCALMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MultiPeriodExcessEBITDAMethodMember_019c29a6-4798-7567-8e8d-e81f038c0d7d_terseLabel_en-US" xlink:label="lab_bbplc_MultiPeriodExcessEBITDAMethodMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Multi-Period Excess EBITDA Method</link:label>
    <link:label id="lab_bbplc_MultiPeriodExcessEBITDAMethodMember_label_en-US" xlink:label="lab_bbplc_MultiPeriodExcessEBITDAMethodMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Multi-Period Excess EBITDA Method [Member]</link:label>
    <link:label id="lab_bbplc_MultiPeriodExcessEBITDAMethodMember_documentation_en-US" xlink:label="lab_bbplc_MultiPeriodExcessEBITDAMethodMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Multi-Period Excess EBITDA Method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MultiPeriodExcessEBITDAMethodMember" xlink:href="bbplc-20251231.xsd#bbplc_MultiPeriodExcessEBITDAMethodMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MultiPeriodExcessEBITDAMethodMember" xlink:to="lab_bbplc_MultiPeriodExcessEBITDAMethodMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesMember_019c29a6-49d1-7182-89a6-83fc9a2fba04_terseLabel_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesMember_label_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Liabilities [Member]</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesMember_documentation_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the subordinated debt is measured at amortised cost using the effective interest method under IFRS 9.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SubordinatedLiabilitiesMember" xlink:href="bbplc-20251231.xsd#bbplc_SubordinatedLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SubordinatedLiabilitiesMember" xlink:to="lab_bbplc_SubordinatedLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory_019c29a6-48ae-7cd2-824c-0c6fac7973a7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of trading portfolio liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities held for trading [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesHeldForTradingExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IPathSelectMLPETNMember_019c29a6-48ae-7515-af38-9d14681ddc75_terseLabel_en-US" xlink:label="lab_bbplc_IPathSelectMLPETNMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">iPath&#174; Select MLP ETN</link:label>
    <link:label id="lab_bbplc_IPathSelectMLPETNMember_label_en-US" xlink:label="lab_bbplc_IPathSelectMLPETNMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">iPath&#174; Select MLP ETN [Member]</link:label>
    <link:label id="lab_bbplc_IPathSelectMLPETNMember_documentation_en-US" xlink:label="lab_bbplc_IPathSelectMLPETNMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">iPath&#174; Select MLP ETN</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IPathSelectMLPETNMember" xlink:href="bbplc-20251231.xsd#bbplc_IPathSelectMLPETNMember"/>
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    <link:label id="lab_bbplc_LeasesLineItems_019c29a6-4828-7e7f-b048-9f1f62aef728_terseLabel_en-US" xlink:label="lab_bbplc_LeasesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leases [Line Items]</link:label>
    <link:label id="lab_bbplc_LeasesLineItems_label_en-US" xlink:label="lab_bbplc_LeasesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leases [Line Items]</link:label>
    <link:label id="lab_bbplc_LeasesLineItems_documentation_en-US" xlink:label="lab_bbplc_LeasesLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Leases [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LeasesLineItems" xlink:href="bbplc-20251231.xsd#bbplc_LeasesLineItems"/>
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    <link:label id="lab_ifrs-full_LoansAndAdvances_019c29a6-48ae-7c63-bd9a-b0a99fef2415_terseLabel_en-US" xlink:label="lab_ifrs-full_LoansAndAdvances" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances</link:label>
    <link:label id="lab_ifrs-full_LoansAndAdvances_label_en-US" xlink:label="lab_ifrs-full_LoansAndAdvances" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and advances</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvances" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvances"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoansAndAdvances" xlink:to="lab_ifrs-full_LoansAndAdvances" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome_019c29a6-49d1-709c-ba09-dc88e46958ab_terseLabel_en-US" xlink:label="lab_ifrs-full_CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net (losses)/gains from disposal of financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cumulative gain (loss) on disposal of investments in equity instruments designated at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
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    <link:label id="lab_ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_019c29a6-4798-7789-885b-466b7a25bcc5_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Banking surcharge and other items, percentage</link:label>
    <link:label id="lab_ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other tax rate effects for reconciliation between accounting profit and tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:to="lab_ifrs-full_OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable_019c29a6-49d1-7288-8459-3e2bffd5eac5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable"/>
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    <link:label id="lab_ifrs-full_DisclosureOfCreditRiskExposureAbstract_019c29a6-4930-7acd-9380-1269b95851e4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfCreditRiskExposureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of credit risk exposure [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfCreditRiskExposureAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfCreditRiskExposureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of credit risk exposure [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExposureAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExposureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfCreditRiskExposureAbstract" xlink:to="lab_ifrs-full_DisclosureOfCreditRiskExposureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset_019c29a6-4931-7d79-9682-fa9731b4486e_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in net defined benefit liability (asset) resulting from other changes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherChangesNetDefinedBenefitLiabilityAsset"/>
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    <link:label id="lab_srt_TitleOfIndividualAxis_019c29a6-4931-7503-b052-e2e232bfb893_terseLabel_en-US" xlink:label="lab_srt_TitleOfIndividualAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title and Position [Axis]</link:label>
    <link:label id="lab_srt_TitleOfIndividualAxis_label_en-US" xlink:label="lab_srt_TitleOfIndividualAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title and Position [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_TitleOfIndividualAxis" xlink:to="lab_srt_TitleOfIndividualAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_019c29a6-49d1-776f-a804-af63d3c694d6_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for hedging</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for hedging [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForHedgingExplanatory"/>
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    <link:label id="lab_bbplc_BaselineMember_019c29a6-4931-72fa-ae72-b93c8ef35a13_terseLabel_en-US" xlink:label="lab_bbplc_BaselineMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Baseline</link:label>
    <link:label id="lab_bbplc_BaselineMember_label_en-US" xlink:label="lab_bbplc_BaselineMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Baseline [member]</link:label>
    <link:label id="lab_bbplc_BaselineMember_documentation_en-US" xlink:label="lab_bbplc_BaselineMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">An external consensus forecast is assembled from key sources, including HM Treasury, Bloomberg and the Urban Land Institute.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BaselineMember" xlink:href="bbplc-20251231.xsd#bbplc_BaselineMember"/>
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    <link:label id="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax_019c341c-799c-786c-9c4c-cc768486a2eb_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in profit for the year due to reasonable possibly decrease, percentage</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Profit (Loss) Due To Reasonably Possible Decrease In Risk Variable As A Percentage Of Net Profit After Tax</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Profit (Loss) Due To Reasonably Possible Decrease In Risk Variable As A Percentage Of Net Profit After Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfNetProfitAfterTax"/>
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    <link:label id="lab_bbplc_BarclaysInvestmentSolutionsLimitedMember_019c29a6-4798-7669-b7ec-85803978ac1d_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysInvestmentSolutionsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Investment Solutions Limited</link:label>
    <link:label id="lab_bbplc_BarclaysInvestmentSolutionsLimitedMember_label_en-US" xlink:label="lab_bbplc_BarclaysInvestmentSolutionsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Investment Solutions Limited [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysInvestmentSolutionsLimitedMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysInvestmentSolutionsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Investment Solutions Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysInvestmentSolutionsLimitedMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysInvestmentSolutionsLimitedMember"/>
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    <link:label id="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfNetProfitAfterTax_019c3425-2746-79d4-b31d-fd78070cbd1c_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfNetProfitAfterTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in profit for the year due to reasonable possibly increase, percentage</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfNetProfitAfterTax_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfNetProfitAfterTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Profit (Loss) Due To Reasonably Possible Increase In Risk Variable As A Percentage Of Net Profit After Tax</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfNetProfitAfterTax_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskVariableAsAPercentageOfNetProfitAfterTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Profit (Loss) Due To Reasonably Possible Increase In Risk Variable As A Percentage Of Net Profit After Tax</link:label>
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    <link:label id="lab_bbplc_CommercialPaperCPAndMediumTermNoteConduitsMember_019c29a6-4827-7d82-b59f-fcc289e609ba_terseLabel_en-US" xlink:label="lab_bbplc_CommercialPaperCPAndMediumTermNoteConduitsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CP's and medium-term note conduits</link:label>
    <link:label id="lab_bbplc_CommercialPaperCPAndMediumTermNoteConduitsMember_label_en-US" xlink:label="lab_bbplc_CommercialPaperCPAndMediumTermNoteConduitsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Paper (CP) And Medium-Term Note Conduits [Member]</link:label>
    <link:label id="lab_bbplc_CommercialPaperCPAndMediumTermNoteConduitsMember_documentation_en-US" xlink:label="lab_bbplc_CommercialPaperCPAndMediumTermNoteConduitsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for commercial paper and medium term loan conduits.</link:label>
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    <link:label id="lab_ifrs-full_DepositsFromCustomers_019c29a6-49d1-71b9-a161-828329306458_verboseLabel_en-US" xlink:label="lab_ifrs-full_DepositsFromCustomers" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deposits from customers</link:label>
    <link:label id="lab_ifrs-full_DepositsFromCustomers_label_en-US" xlink:label="lab_ifrs-full_DepositsFromCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits from customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsFromCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepositsFromCustomers"/>
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    <link:label id="lab_bbplc_FinancialInstrumentsAtFairValueCategoryMember_019c29a6-4828-73a8-88ba-5b85d787e9f8_terseLabel_en-US" xlink:label="lab_bbplc_FinancialInstrumentsAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial instruments at fair value</link:label>
    <link:label id="lab_bbplc_FinancialInstrumentsAtFairValueCategoryMember_label_en-US" xlink:label="lab_bbplc_FinancialInstrumentsAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instruments At Fair Value, Category [Member]</link:label>
    <link:label id="lab_bbplc_FinancialInstrumentsAtFairValueCategoryMember_documentation_en-US" xlink:label="lab_bbplc_FinancialInstrumentsAtFairValueCategoryMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the financial instruments measured at fair value.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialInstrumentsAtFairValueCategoryMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialInstrumentsAtFairValueCategoryMember"/>
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    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain_019c29a6-4828-71f3-a47b-8c10d8974952_terseLabel_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [domain]</link:label>
    <link:label id="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain_label_en-US" xlink:label="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Type of measurement of expected credit losses [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:to="lab_ifrs-full_TypeOfMeasurementOfExpectedCreditLossesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-49d1-7f6d-a745-1ed978ba9165_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-49d1-7a08-bfa1-f98917d58111_periodStartLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-49d1-7fde-aaae-cb5baefb3917_periodEndLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValue_019c29a6-4930-7f1e-a250-f872c626129c_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValue" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValue_019c29a6-4930-71e1-9a6c-c01fe2926e81_negatedPeriodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValue" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, financial liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValue_019c29a6-4930-771d-ad5c-fe9a0233b8ec_negatedPeriodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValue" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, financial liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValue_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities, at fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValue" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_019c29a6-4798-74ca-93be-8483508f2c21_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total equity settled</link:label>
    <link:label id="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_label_en-US" xlink:label="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense from equity-settled share-based payment transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:to="lab_ifrs-full_ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_019c29a6-4828-7bef-b782-0a96750d8db5_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets included in disposal group classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_019c29a6-4828-73c3-98f4-9e52bd4f7189_verboseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Assets held for sale</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_019c29a6-4828-730f-9634-862366a0e650_totalLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale_label_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current assets or disposal groups classified as held for sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:to="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSale" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_019c29a6-4828-7d48-acc2-f8c039f40596_terseLabel_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [domain]</link:label>
    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain_label_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:to="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable_019c29a6-49d1-7135-a598-d14638abfcf5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedged items [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedged items [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SettlementsFairValueMeasurementLiabilities_019c29a6-4798-7057-b627-0a3d04d09abf_terseLabel_en-US" xlink:label="lab_ifrs-full_SettlementsFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Settlements, fair value measurement, liabilities</link:label>
    <link:label id="lab_ifrs-full_SettlementsFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_SettlementsFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Settlements, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SettlementsFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SettlementsFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SettlementsFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_SettlementsFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TopOfRangeMember_019c29a6-49d1-791e-bcbb-306cb7b505a8_terseLabel_en-US" xlink:label="lab_ifrs-full_TopOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">High</link:label>
    <link:label id="lab_ifrs-full_TopOfRangeMember_019c29a6-49d1-7734-9ee6-3c4818a4f7a0_verboseLabel_en-US" xlink:label="lab_ifrs-full_TopOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Top of range</link:label>
    <link:label id="lab_ifrs-full_TopOfRangeMember_019c29a6-49d1-7540-87cf-2b311c26a9d5_netLabel_en-US" xlink:label="lab_ifrs-full_TopOfRangeMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Max</link:label>
    <link:label id="lab_ifrs-full_TopOfRangeMember_label_en-US" xlink:label="lab_ifrs-full_TopOfRangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Top of range [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TopOfRangeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TopOfRangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TopOfRangeMember" xlink:to="lab_ifrs-full_TopOfRangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers_019c29a6-49d1-7f2a-b1e5-6dc9ed78a667_terseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment loss, capitalised contract costs</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss on receivables or contract assets arising from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers" xlink:to="lab_ifrs-full_ImpairmentLossOnReceivablesOrContractAssetsArisingFromContractsWithCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFinancialInstrumentsMember_019c29a6-4828-7820-8c69-53d7a5265095_terseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other products</link:label>
    <link:label id="lab_bbplc_OtherFinancialInstrumentsMember_label_en-US" xlink:label="lab_bbplc_OtherFinancialInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Instruments [Member]</link:label>
    <link:label id="lab_bbplc_OtherFinancialInstrumentsMember_documentation_en-US" xlink:label="lab_bbplc_OtherFinancialInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Financial Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFinancialInstrumentsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherFinancialInstrumentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFinancialInstrumentsMember" xlink:to="lab_bbplc_OtherFinancialInstrumentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughModificationOfContractualCashFlowsFinancialAssets_019c29a6-4798-76b6-8dc5-5244aaade229_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughModificationOfContractualCashFlowsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net drawdowns, repayments, net re-measurement and movements due to exposure and risk parameter changes</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughModificationOfContractualCashFlowsFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughModificationOfContractualCashFlowsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through modification of contractual cash flows, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughModificationOfContractualCashFlowsFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughModificationOfContractualCashFlowsFinancialAssets"/>
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    <link:label id="lab_ifrs-full_WeightedAverageSharePrice2019_019c29a6-4931-74d7-b87c-0375f8433e11_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageSharePrice2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercisable, weighted average exercise price (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageSharePrice2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageSharePrice2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average share price</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageSharePrice2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageSharePrice2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageSharePrice2019" xlink:to="lab_ifrs-full_WeightedAverageSharePrice2019" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember_019c29a6-49d1-74b1-9b19-7d2814fc9b83_terseLabel_en-US" xlink:label="lab_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL from held for sale assets (co-branded card portfolio)</link:label>
    <link:label id="lab_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember_label_en-US" xlink:label="lab_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ECL From Assets Classified As Held For Sale, Adjustment [Member]</link:label>
    <link:label id="lab_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember_documentation_en-US" xlink:label="lab_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ECL From Assets Classified As Held For Sale, Adjustment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember" xlink:href="bbplc-20251231.xsd#bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember" xlink:to="lab_bbplc_ECLFromAssetsClassifiedAsHeldForSaleAdjustmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_KPMGMember_019c29a6-49d1-74ed-aaae-72893bd2b8a6_terseLabel_en-US" xlink:label="lab_bbplc_KPMGMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">KPMG</link:label>
    <link:label id="lab_bbplc_KPMGMember_label_en-US" xlink:label="lab_bbplc_KPMGMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">KPMG [Member]</link:label>
    <link:label id="lab_bbplc_KPMGMember_documentation_en-US" xlink:label="lab_bbplc_KPMGMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the principal auditor Klynveld Peat Marwick Goerdeler.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_KPMGMember" xlink:href="bbplc-20251231.xsd#bbplc_KPMGMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_KPMGMember" xlink:to="lab_bbplc_KPMGMember" xlink:type="arc" order="1"/>
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    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember_label_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial Assumption Of Change In Expected Inflation Rate By Fifty Basis Points [Member]</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember_documentation_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Actuarial Assumption Of Change In Expected Inflation Rate By Fifty Basis Points.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember" xlink:href="bbplc-20251231.xsd#bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember" xlink:to="lab_bbplc_ActuarialAssumptionOfChangeInExpectedInflationRateByFiftyBasisPointsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CustomerRedressMember_019c29a6-49d1-74f6-a7a6-84edd67dc1fa_terseLabel_en-US" xlink:label="lab_bbplc_CustomerRedressMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer redress</link:label>
    <link:label id="lab_bbplc_CustomerRedressMember_label_en-US" xlink:label="lab_bbplc_CustomerRedressMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer Redress [Member]</link:label>
    <link:label id="lab_bbplc_CustomerRedressMember_documentation_en-US" xlink:label="lab_bbplc_CustomerRedressMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a provision for customer redress provisions comprise the estimated cost of making redress payments to customers, clients and counterparties for losses or damages associated with inappropriate judgement in the execution of our business activities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CustomerRedressMember" xlink:href="bbplc-20251231.xsd#bbplc_CustomerRedressMember"/>
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    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsExplanatory_019c29a6-4828-79b3-b3e7-13e2b0cc0317_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of expected notional values of current hedging instruments in future years</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about terms and conditions of hedging instruments and how they affect future cash flows [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutTermsAndConditionsOfHedgingInstrumentsAndHowTheyAffectFutureCashFlowsExplanatory"/>
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    <link:label id="lab_bbplc_DisclosureOfNetTradingIncomeTableTextBlock_019c29a6-49d1-7244-8bcf-8b776772493e_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfNetTradingIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of net trading income</link:label>
    <link:label id="lab_bbplc_DisclosureOfNetTradingIncomeTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfNetTradingIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Net Trading Income [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfNetTradingIncomeTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfNetTradingIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of net trading income. [Refer: Trading income (expense)]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfNetTradingIncomeTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfNetTradingIncomeTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfNetTradingIncomeTableTextBlock" xlink:to="lab_bbplc_DisclosureOfNetTradingIncomeTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019c29a6-49d1-7c54-be38-068af7b8ae78_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit remeasurement</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019c29a6-49d1-702a-8e92-d9c0a9bbfda2_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit remeasurement</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
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    <link:label id="lab_bbplc_RiskWeightedAssets1_019c29a6-48ae-7037-8845-602740c92b6f_terseLabel_en-US" xlink:label="lab_bbplc_RiskWeightedAssets1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total risk weighted assets (RWAs)</link:label>
    <link:label id="lab_bbplc_RiskWeightedAssets1_label_en-US" xlink:label="lab_bbplc_RiskWeightedAssets1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk Weighted Assets1</link:label>
    <link:label id="lab_bbplc_RiskWeightedAssets1_documentation_en-US" xlink:label="lab_bbplc_RiskWeightedAssets1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The risk weighted assets of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RiskWeightedAssets1" xlink:href="bbplc-20251231.xsd#bbplc_RiskWeightedAssets1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RiskWeightedAssets1" xlink:to="lab_bbplc_RiskWeightedAssets1" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_019c29a6-4828-7ee5-86c8-9fd70859bb6d_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income/(loss) not recycled to profit or loss</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income that will not be reclassified to profit or loss, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets_019c29a6-4828-761f-92da-92c93f7db312_terseLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and liquid assets</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets" xlink:to="lab_ifrs-full_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember_019c29a6-49d1-7af0-bf27-fc2e057bd6b3_terseLabel_en-US" xlink:label="lab_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total loans and advances at amortised cost and Off-balance sheet loan commitments and financial guarantee contracts</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember_label_en-US" xlink:label="lab_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans And Advances, Debt Securities And Loan Commitments And Financial Guarantee Contracts [Member]</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember_documentation_en-US" xlink:label="lab_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loans And Advances, Debt Securities And Loan Commitments And Financial Guarantee Contracts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:href="bbplc-20251231.xsd#bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:to="lab_bbplc_LoansAndAdvancesDebtSecuritiesAndLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011_019c29a6-4930-7f2a-8317-2dc6db81d19a_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Non-taxable gains and income</link:label>
    <link:label id="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011_label_en-US" xlink:label="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax effect of revenues exempt from taxation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:to="lab_ifrs-full_TaxEffectOfRevenuesExemptFromTaxation2011" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A575FixedRateSubordinatedNotesDue2026Member_019c29a6-4931-7782-a8bd-bf4d6b31ca47_terseLabel_en-US" xlink:label="lab_bbplc_A575FixedRateSubordinatedNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.75% Fixed Rate Subordinated Notes</link:label>
    <link:label id="lab_bbplc_A575FixedRateSubordinatedNotesDue2026Member_label_en-US" xlink:label="lab_bbplc_A575FixedRateSubordinatedNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">5.75% Fixed Rate Subordinated Notes, Due 2026 [Member]</link:label>
    <link:label id="lab_bbplc_A575FixedRateSubordinatedNotesDue2026Member_documentation_en-US" xlink:label="lab_bbplc_A575FixedRateSubordinatedNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 5.75% Fixed Rate Subordinated Notes maturing in 2026.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A575FixedRateSubordinatedNotesDue2026Member" xlink:href="bbplc-20251231.xsd#bbplc_A575FixedRateSubordinatedNotesDue2026Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A575FixedRateSubordinatedNotesDue2026Member" xlink:to="lab_bbplc_A575FixedRateSubordinatedNotesDue2026Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_019c29a6-4828-7acf-8469-55c394ea3ef7_terseLabel_en-US" xlink:label="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</link:label>
    <link:label id="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_label_en-US" xlink:label="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="lab_ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DefinedBenefitObligationAtPresentValue_019c29a6-4828-72fd-8640-f978754cee20_terseLabel_en-US" xlink:label="lab_ifrs-full_DefinedBenefitObligationAtPresentValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined benefit obligation, at present value</link:label>
    <link:label id="lab_ifrs-full_DefinedBenefitObligationAtPresentValue_label_en-US" xlink:label="lab_ifrs-full_DefinedBenefitObligationAtPresentValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined benefit obligation, at present value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DefinedBenefitObligationAtPresentValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitObligationAtPresentValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DefinedBenefitObligationAtPresentValue" xlink:to="lab_ifrs-full_DefinedBenefitObligationAtPresentValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherRelatedPartiesMember_019c29a6-4828-7ab8-be70-c5f32e657293_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherRelatedPartiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fellow subsidiaries</link:label>
    <link:label id="lab_ifrs-full_OtherRelatedPartiesMember_label_en-US" xlink:label="lab_ifrs-full_OtherRelatedPartiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other related parties [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherRelatedPartiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherRelatedPartiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherRelatedPartiesMember" xlink:to="lab_ifrs-full_OtherRelatedPartiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfConvertibleInstrumentsRedeemed_019c29a6-4798-73ad-ad47-d497f91ddf35_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfConvertibleInstrumentsRedeemed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of convertible instruments redeemed</link:label>
    <link:label id="lab_bbplc_NumberOfConvertibleInstrumentsRedeemed_label_en-US" xlink:label="lab_bbplc_NumberOfConvertibleInstrumentsRedeemed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Convertible Instruments Redeemed</link:label>
    <link:label id="lab_bbplc_NumberOfConvertibleInstrumentsRedeemed_documentation_en-US" xlink:label="lab_bbplc_NumberOfConvertibleInstrumentsRedeemed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of convertible instruments redeemed during the period.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfConvertibleInstrumentsRedeemed" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfConvertibleInstrumentsRedeemed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfConvertibleInstrumentsRedeemed" xlink:to="lab_bbplc_NumberOfConvertibleInstrumentsRedeemed" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrencyRiskMember_019c29a6-4828-7851-9351-083d245f3a9d_verboseLabel_en-US" xlink:label="lab_ifrs-full_CurrencyRiskMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Foreign exchange risk</link:label>
    <link:label id="lab_ifrs-full_CurrencyRiskMember_019c29a6-4828-77af-8164-36e853a4ddb5_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrencyRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign exchange derivatives</link:label>
    <link:label id="lab_ifrs-full_CurrencyRiskMember_label_en-US" xlink:label="lab_ifrs-full_CurrencyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Currency risk [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrencyRiskMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrencyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrencyRiskMember" xlink:to="lab_ifrs-full_CurrencyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019c29a6-4930-7378-90b5-7a083286502d_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Credit impairment charges</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019c29a6-4930-7af1-ae1c-b8ea8a40a418_terseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total credit impairment charge for the year</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019c29a6-4930-7b06-8aa4-c8a0c1dad6e8_negatedLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Credit impairment (charges)/releases</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019c29a6-4930-7669-b1e6-e3188d537ffd_totalLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total credit impairment charges /(releases)</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsThatEntityContinuesToRecognise_019c29a6-48ae-7b09-bdd0-d391883aea87_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsThatEntityContinuesToRecognise" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets, carrying amount</link:label>
    <link:label id="lab_ifrs-full_AssetsThatEntityContinuesToRecognise_019c29a6-48ae-7165-9409-35af50300045_verboseLabel_en-US" xlink:label="lab_ifrs-full_AssetsThatEntityContinuesToRecognise" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Transferred assets</link:label>
    <link:label id="lab_ifrs-full_AssetsThatEntityContinuesToRecognise_label_en-US" xlink:label="lab_ifrs-full_AssetsThatEntityContinuesToRecognise" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets that entity continues to recognise</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsThatEntityContinuesToRecognise" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsThatEntityContinuesToRecognise"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsThatEntityContinuesToRecognise" xlink:to="lab_ifrs-full_AssetsThatEntityContinuesToRecognise" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RevenueFromContractsWithCustomers_019c29a6-48ae-7f2a-b1a3-cf8761218d89_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total revenue from contracts with customers</link:label>
    <link:label id="lab_ifrs-full_RevenueFromContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromContractsWithCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromContractsWithCustomers" xlink:to="lab_ifrs-full_RevenueFromContractsWithCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_VariousZeroCouponLoansMember_019c29a6-48ae-7bd9-be0f-ff1d796daab9_terseLabel_en-US" xlink:label="lab_bbplc_VariousZeroCouponLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Various Zero Coupon Callable Loans</link:label>
    <link:label id="lab_bbplc_VariousZeroCouponLoansMember_label_en-US" xlink:label="lab_bbplc_VariousZeroCouponLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Various Zero Coupon Loans [Member]</link:label>
    <link:label id="lab_bbplc_VariousZeroCouponLoansMember_documentation_en-US" xlink:label="lab_bbplc_VariousZeroCouponLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Zero coupon loans held by the entity due 2050.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VariousZeroCouponLoansMember" xlink:href="bbplc-20251231.xsd#bbplc_VariousZeroCouponLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_VariousZeroCouponLoansMember" xlink:to="lab_bbplc_VariousZeroCouponLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_019c29a6-48ae-79b2-8ec8-a66027c5da58_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income/(loss) for the year</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_019c29a6-48ae-78c5-8dee-01c889d8a721_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncome" xlink:to="lab_ifrs-full_OtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesAxis_019c29a6-4798-77db-afa2-e34d2864e64c_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A3MonthEuroInterbankOfferedRateMember_019c29a6-49d1-7d59-af09-4c4e14134bbb_terseLabel_en-US" xlink:label="lab_bbplc_A3MonthEuroInterbankOfferedRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">3-Month Euribor</link:label>
    <link:label id="lab_bbplc_A3MonthEuroInterbankOfferedRateMember_label_en-US" xlink:label="lab_bbplc_A3MonthEuroInterbankOfferedRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">3-Month Euro Interbank Offered Rate [Member]</link:label>
    <link:label id="lab_bbplc_A3MonthEuroInterbankOfferedRateMember_documentation_en-US" xlink:label="lab_bbplc_A3MonthEuroInterbankOfferedRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">3-Month Euro Interbank Offered Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A3MonthEuroInterbankOfferedRateMember" xlink:href="bbplc-20251231.xsd#bbplc_A3MonthEuroInterbankOfferedRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A3MonthEuroInterbankOfferedRateMember" xlink:to="lab_bbplc_A3MonthEuroInterbankOfferedRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets_019c29a6-4827-7b77-93e0-148ad07bfa12_negatedLabel_en-US" xlink:label="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Transfers out of Level 3 of fair value hierarchy, assets</link:label>
    <link:label id="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets_label_en-US" xlink:label="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers out of Level 3 of fair value hierarchy, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets" xlink:to="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CounterpartiesDomain_019c29a6-4931-7b73-9342-0693db2d0603_terseLabel_en-US" xlink:label="lab_ifrs-full_CounterpartiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparties [domain]</link:label>
    <link:label id="lab_ifrs-full_CounterpartiesDomain_label_en-US" xlink:label="lab_ifrs-full_CounterpartiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparties [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CounterpartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CounterpartiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CounterpartiesDomain" xlink:to="lab_ifrs-full_CounterpartiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock_019c29a6-4930-7b7e-a712-843cda5d7769_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of Auditor's remuneration</link:label>
    <link:label id="lab_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Detailed Information About Auditors' Remuneration [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of detailed information about compensation to the entity's auditors.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock" xlink:to="lab_bbplc_DisclosureOfDetailedInformationAboutAuditorsRemunerationTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PastDueStatusDomain_019c29a6-4798-7c22-bd35-80e2fa140561_terseLabel_en-US" xlink:label="lab_ifrs-full_PastDueStatusDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Past due status [domain]</link:label>
    <link:label id="lab_ifrs-full_PastDueStatusDomain_label_en-US" xlink:label="lab_ifrs-full_PastDueStatusDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Past due status [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PastDueStatusDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PastDueStatusDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PastDueStatusDomain" xlink:to="lab_ifrs-full_PastDueStatusDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialStatementLocationAxis_019c29a6-48ae-7658-86c8-2b3442f72cf2_terseLabel_en-US" xlink:label="lab_bbplc_FinancialStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial statement location [Axis]</link:label>
    <link:label id="lab_bbplc_FinancialStatementLocationAxis_label_en-US" xlink:label="lab_bbplc_FinancialStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Statement Location [Axis]</link:label>
    <link:label id="lab_bbplc_FinancialStatementLocationAxis_documentation_en-US" xlink:label="lab_bbplc_FinancialStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The axis of a table defines the relationship between the domain members or categories in the table and the line items or concepts that complete the table.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialStatementLocationAxis" xlink:href="bbplc-20251231.xsd#bbplc_FinancialStatementLocationAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialStatementLocationAxis" xlink:to="lab_bbplc_FinancialStatementLocationAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UnitedStatesBranchTaxGroupMemberMember_019c29a6-48ae-7810-afeb-18944733ecf1_terseLabel_en-US" xlink:label="lab_bbplc_UnitedStatesBranchTaxGroupMemberMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank PLC's US Branch Tax Group</link:label>
    <link:label id="lab_bbplc_UnitedStatesBranchTaxGroupMemberMember_label_en-US" xlink:label="lab_bbplc_UnitedStatesBranchTaxGroupMemberMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">United States Branch Tax Group Member [Member]</link:label>
    <link:label id="lab_bbplc_UnitedStatesBranchTaxGroupMemberMember_documentation_en-US" xlink:label="lab_bbplc_UnitedStatesBranchTaxGroupMemberMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">United States Branch Tax Group Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UnitedStatesBranchTaxGroupMemberMember" xlink:href="bbplc-20251231.xsd#bbplc_UnitedStatesBranchTaxGroupMemberMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UnitedStatesBranchTaxGroupMemberMember" xlink:to="lab_bbplc_UnitedStatesBranchTaxGroupMemberMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_019c29a6-4798-7ed6-aae0-7c23ded90ff5_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions_019c29a6-4798-7658-beb0-30a06a27dfb5_terseLabel_en-US" xlink:label="lab_ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total value of guarantees entered into on behalf of Directors</link:label>
    <link:label id="lab_ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments made on behalf of entity, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions" xlink:to="lab_ifrs-full_CommitmentsMadeOnBehalfOfEntityRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets_019c29a6-4828-729e-9b83-7cfcfdf214f7_negatedLabel_en-US" xlink:label="lab_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Final repayments</link:label>
    <link:label id="lab_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets_label_en-US" xlink:label="lab_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Final Repayments, Financial Assets</link:label>
    <link:label id="lab_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets_documentation_en-US" xlink:label="lab_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Final Repayments, Financial Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseThroughFinalRepaymentsFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets" xlink:to="lab_bbplc_DecreaseThroughFinalRepaymentsFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseOnBorrowings_019c29a6-4798-74e4-9312-a44c0a2a70e2_negatedLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnBorrowings" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnBorrowings_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense on borrowings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnBorrowings" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnBorrowings" xlink:to="lab_ifrs-full_InterestExpenseOnBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_019c29a6-4798-75a5-955e-bfbd777058bb_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax_019c29a6-49d1-7182-bacd-e81bdff94143_verboseLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Amount recycled from OCI due to sale of investment, or cash flows no longer expected to occur, cash flow hedges</link:label>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax_label_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification adjustments on cash flow hedges for which hedged future cash flows are no longer expected to occur, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:to="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesForWhichHedgedFutureCashFlowsAreNoLongerExpectedToOccurNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RecognisedAssetsDefinedBenefitPlan_019c29a6-4828-7b01-84b6-8e27ce1ecf0f_verboseLabel_en-US" xlink:label="lab_ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit assets</link:label>
    <link:label id="lab_ifrs-full_RecognisedAssetsDefinedBenefitPlan_019c29a6-4828-7c3b-8f2c-3f37f7c6149c_terseLabel_en-US" xlink:label="lab_ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit assets</link:label>
    <link:label id="lab_ifrs-full_RecognisedAssetsDefinedBenefitPlan_label_en-US" xlink:label="lab_ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net defined benefit asset</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecognisedAssetsDefinedBenefitPlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:to="lab_ifrs-full_RecognisedAssetsDefinedBenefitPlan" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accruals and deferred income including contract liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilitiesAbstract" xlink:to="lab_ifrs-full_AccrualsAndDeferredIncomeIncludingContractLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember_019c29a6-4798-7a9a-b539-998c2307afe1_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.05 to 0.15%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Point Zero Five To Point One Five Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale retail lending with a default grade betweeen 4 and 5. A probability of default between 0.05% and 0.15%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultPointZeroFiveToPointOneFivePercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgedItemsDomain_019c29a6-4828-7c25-bcd6-c7604aae4474_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgedItemsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedged items [domain]</link:label>
    <link:label id="lab_ifrs-full_HedgedItemsDomain_label_en-US" xlink:label="lab_ifrs-full_HedgedItemsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedged items [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgedItemsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgedItemsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgedItemsDomain" xlink:to="lab_ifrs-full_HedgedItemsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-4798-70e0-b56e-8ed834b442c3_terseLabel_en-US" xlink:label="lab_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">7.625% Perpetual Subordinated Contingent Convertible Securities (USD1,500m)</link:label>
    <link:label id="lab_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">7.625% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">7.625% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A7.625PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019c29a6-48ae-7e2d-b81d-6b3490762c22_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Loss)/Profit from continuing operations</link:label>
    <link:label id="lab_ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary_019c29a6-48ae-7c5f-805c-94d2f51e8df2_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in subsidiary</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary_019c29a6-48ae-7df0-8903-2c026fce22d2_verboseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of voting rights held</link:label>
    <link:label id="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary_label_en-US" xlink:label="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of voting rights held in subsidiary</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfVotingPowerHeldInSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:to="lab_ifrs-full_ProportionOfVotingPowerHeldInSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet_019c29a6-48ae-757d-adc8-596fca51e363_totalLabel_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Accumulated fair value adjustment on items no longer in a hedge relationship, total</link:label>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet_label_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Fair Value Hedge Adjustment Remaining In Statement Of Financial Position For Hedged Item That Ceased To Be Adjusted For Hedging Gains And Losses, Net</link:label>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet_documentation_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The accumulated amount of fair value hedge adjustment remaining in the statement of financial position for a hedged item that is a financial asset measured at amortised cost less liabilities and has ceased to be adjusted for hedging gains and losses. [Refer: Financial assets at amortised cost; Hedged items [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet" xlink:href="bbplc-20251231.xsd#bbplc_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesNet"/>
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    <link:label id="lab_bbplc_LeaseExtensionPeriod_019c29a6-48ae-7061-bcf2-e22e003553ee_terseLabel_en-US" xlink:label="lab_bbplc_LeaseExtensionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lease, extension period</link:label>
    <link:label id="lab_bbplc_LeaseExtensionPeriod_label_en-US" xlink:label="lab_bbplc_LeaseExtensionPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease, Extension Period</link:label>
    <link:label id="lab_bbplc_LeaseExtensionPeriod_documentation_en-US" xlink:label="lab_bbplc_LeaseExtensionPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Lease, Extension Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LeaseExtensionPeriod" xlink:href="bbplc-20251231.xsd#bbplc_LeaseExtensionPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LeaseExtensionPeriod" xlink:to="lab_bbplc_LeaseExtensionPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-4828-78d3-be6d-5b1f7ca3616e_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Depreciation charge</link:label>
    <link:label id="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_DepreciationPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded_019c29a6-49d1-7a63-8891-6438c431afc0_negatedLabel_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Employer social security charges on emoluments</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded_label_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key Management Personnel Compensation Security Charges Emoluments, Awarded</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded_documentation_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of compensation to key management personnel in the form of employer social security charges awarded on emoluments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded" xlink:href="bbplc-20251231.xsd#bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded" xlink:to="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmolumentsAwarded" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory_019c29a6-4828-7c3a-b0d7-83e7aba35fd7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ordinary shares, preference shares and other equity</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of issued capital [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIssuedCapitalExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIssuedCapitalExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_019c29a6-4828-7891-8b06-d54d27a99296_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiaries [domain]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiaries [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:to="lab_ifrs-full_SignificantInvestmentsInSubsidiariesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember_019c29a6-48ae-777d-a503-c931603fdf93_terseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets subject to impairment</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember_019c29a6-48ae-7816-a7ea-3d618e303d18_verboseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember_label_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Assets Subject To Impairment [Member]</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember_documentation_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other financial assets subject to impairment, which includes cash collateral and settlement balances, financial assets at fair value through other comprehensive income, accrued income and sundry debtors.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFinancialAssetsSubjectToImpairmentMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherFinancialAssetsSubjectToImpairmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFinancialAssetsSubjectToImpairmentMember" xlink:to="lab_bbplc_OtherFinancialAssetsSubjectToImpairmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfCreditRiskExposureExplanatory_019c29a6-4828-76b0-8b64-f34fa1fa9ba7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of credit risk of loans and advances designated at fair value and related credit derivatives</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfCreditRiskExposureExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of credit risk exposure [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExposureExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" xlink:to="lab_ifrs-full_DisclosureOfCreditRiskExposureExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsByNameAxis_019c29a6-4828-74d9-8464-2a66452b5171_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings by name [axis]</link:label>
    <link:label id="lab_ifrs-full_BorrowingsByNameAxis_label_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings by name [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsByNameAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameAxis" xlink:to="lab_ifrs-full_BorrowingsByNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CommitmentsGiven_019c29a6-4828-7e43-9c90-62fcac9364a6_totalLabel_en-US" xlink:label="lab_bbplc_CommitmentsGiven" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total off-balance sheet commitments given</link:label>
    <link:label id="lab_bbplc_CommitmentsGiven_label_en-US" xlink:label="lab_bbplc_CommitmentsGiven" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments Given</link:label>
    <link:label id="lab_bbplc_CommitmentsGiven_documentation_en-US" xlink:label="lab_bbplc_CommitmentsGiven" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of commitments given, including contingent liabilities, documentary credits and other short-term trade related transactions, and standby facilities, credit lines and other commitments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CommitmentsGiven" xlink:href="bbplc-20251231.xsd#bbplc_CommitmentsGiven"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CommitmentsGiven" xlink:to="lab_bbplc_CommitmentsGiven" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OTCDerivativesMember_019c29a6-4798-76d4-afb3-b45cded9fe17_terseLabel_en-US" xlink:label="lab_bbplc_OTCDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">OTC derivatives</link:label>
    <link:label id="lab_bbplc_OTCDerivativesMember_label_en-US" xlink:label="lab_bbplc_OTCDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">OTC Derivatives [Member]</link:label>
    <link:label id="lab_bbplc_OTCDerivativesMember_documentation_en-US" xlink:label="lab_bbplc_OTCDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for over the counter traded derivatives.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OTCDerivativesMember" xlink:href="bbplc-20251231.xsd#bbplc_OTCDerivativesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OTCDerivativesMember" xlink:to="lab_bbplc_OTCDerivativesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet_019c29a6-4930-763e-a23d-104d6bc795eb_negatedLabel_en-US" xlink:label="lab_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Settlements, fair value measurement, assets (liabilities) net</link:label>
    <link:label id="lab_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet_label_en-US" xlink:label="lab_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Settlements, Fair Value Measurement, Assets (Liabilities) Net</link:label>
    <link:label id="lab_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet_documentation_en-US" xlink:label="lab_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The decrease in the fair value measurement of assets and liabilities resulting from settlements of those assets and liabilities. [Refer: At fair value [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet" xlink:href="bbplc-20251231.xsd#bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet" xlink:to="lab_bbplc_SettlementsFairValueMeasurementAssetsLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits_019c29a6-4931-72c0-99ca-cb0a8e8523f5_terseLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other long-term benefits</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, other long-term employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationOtherLongtermBenefits" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysBankDelawareMember_019c29a6-4931-7179-8254-2469c98ea94a_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysBankDelawareMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank Delaware</link:label>
    <link:label id="lab_bbplc_BarclaysBankDelawareMember_label_en-US" xlink:label="lab_bbplc_BarclaysBankDelawareMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Bank Delaware [member]</link:label>
    <link:label id="lab_bbplc_BarclaysBankDelawareMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysBankDelawareMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for subsidiary Barclays Bank Delaware.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysBankDelawareMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysBankDelawareMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysBankDelawareMember" xlink:to="lab_bbplc_BarclaysBankDelawareMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfExpensesByNatureExplanatory_019c29a6-49d1-7d4a-a759-8f6af3519009_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfExpensesByNatureExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of infrastructure, administration and general expenses</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfExpensesByNatureExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfExpensesByNatureExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of expenses by nature [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfExpensesByNatureExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfExpensesByNatureExplanatory" xlink:to="lab_ifrs-full_DisclosureOfExpensesByNatureExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_019c29a6-48ae-744b-9e97-b149bbcb3098_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for borrowings [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForBorrowingsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_019c29a6-4931-71fb-b89b-77b8aeda269c_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of intangible assets and goodwill [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:to="lab_ifrs-full_ClassesOfIntangibleAssetsAndGoodwillDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgingInstrumentAssets_019c29a6-48ae-7aab-bc40-f5d6692a413b_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedging instrument, assets</link:label>
    <link:label id="lab_ifrs-full_HedgingInstrumentAssets_label_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedging instrument, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgingInstrumentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgingInstrumentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgingInstrumentAssets" xlink:to="lab_ifrs-full_HedgingInstrumentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts_019c29a6-48ae-71dd-8215-b596122e3847_terseLabel_en-US" xlink:label="lab_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Settlements assets liabilities offset amounts</link:label>
    <link:label id="lab_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts_label_en-US" xlink:label="lab_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Settlements Assets Liabilities Offset Amounts</link:label>
    <link:label id="lab_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts_documentation_en-US" xlink:label="lab_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of settlements assets and liabilities offset.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts" xlink:href="bbplc-20251231.xsd#bbplc_SettlementsAssetsLiabilitiesOffsetAmounts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts" xlink:to="lab_bbplc_SettlementsAssetsLiabilitiesOffsetAmounts" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions_019c29a6-49d1-7c3f-b1ad-eca896addef7_terseLabel_en-US" xlink:label="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Documentary credits and other short-term trade related transactions</link:label>
    <link:label id="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions_label_en-US" xlink:label="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Documentary Credits And Other Short-Term Trade Related Transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions" xlink:href="bbplc-20251231.xsd#bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions" xlink:to="lab_bbplc_DocumentaryCreditsAndOtherShortTermTradeRelatedTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_019c29a6-4828-705a-a64d-2864c44c0239_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in associates accounted for using equity method</link:label>
    <link:label id="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in associates accounted for using equity method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IssuedCapitalAndSharePremiumMember_019c29a6-4930-7b6e-b42f-83077c54a581_terseLabel_en-US" xlink:label="lab_bbplc_IssuedCapitalAndSharePremiumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Called up share capital and share premium</link:label>
    <link:label id="lab_bbplc_IssuedCapitalAndSharePremiumMember_label_en-US" xlink:label="lab_bbplc_IssuedCapitalAndSharePremiumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued Capital And Share Premium [Member]</link:label>
    <link:label id="lab_bbplc_IssuedCapitalAndSharePremiumMember_documentation_en-US" xlink:label="lab_bbplc_IssuedCapitalAndSharePremiumMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the issued capital including the amount received or receivable from issuance of the entity shares in excess of nominal value.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IssuedCapitalAndSharePremiumMember" xlink:href="bbplc-20251231.xsd#bbplc_IssuedCapitalAndSharePremiumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IssuedCapitalAndSharePremiumMember" xlink:to="lab_bbplc_IssuedCapitalAndSharePremiumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember_019c29a6-4828-7c76-9a72-8d88fd2931be_terseLabel_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Actuarial assumption of key financial assumptions</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember_label_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial Assumption Of Key Financial Assumptions [member]</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember_documentation_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the key financial assumptions related to discount rate and inflation rate used as actuarial assumptions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember" xlink:href="bbplc-20251231.xsd#bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember" xlink:to="lab_bbplc_ActuarialAssumptionOfKeyFinancialAssumptionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_019c29a6-4798-7f00-9201-2b0939ab538a_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets and liabilities</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for financial instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments_019c29a6-4798-7336-8dd7-89e39c5aeafa_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on disposals of investments</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on disposals of investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnDisposalsOfInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:to="lab_ifrs-full_GainsLossesOnDisposalsOfInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-49d1-79b5-bf9f-61b5811bb869_terseLabel_en-US" xlink:label="lab_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">7.300% Perpetual Subordinated Contingent Convertible Securities (SGD400m)</link:label>
    <link:label id="lab_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">7.300% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">7.300% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A7300PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidationEliminationsMember_019c29a6-4931-7a67-8d5b-45cf9446f735_terseLabel_en-US" xlink:label="lab_srt_ConsolidationEliminationsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank Group owned, not consolidated entities</link:label>
    <link:label id="lab_srt_ConsolidationEliminationsMember_label_en-US" xlink:label="lab_srt_ConsolidationEliminationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidation, Eliminations [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationEliminationsMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationEliminationsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ConsolidationEliminationsMember" xlink:to="lab_srt_ConsolidationEliminationsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember_019c29a6-4931-7c71-9273-b0fb2eebaef9_terseLabel_en-US" xlink:label="lab_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions other than undrawn contractually committed facilities and guarantees</link:label>
    <link:label id="lab_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember_label_en-US" xlink:label="lab_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provisions Other Than Undrawn Contractually Committed Facilities And Guarantees [Member]</link:label>
    <link:label id="lab_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember_documentation_en-US" xlink:label="lab_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Provisions Other Than Undrawn Contractually Committed Facilities And Guarantees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:href="bbplc-20251231.xsd#bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:to="lab_bbplc_ProvisionsOtherThanUndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets_019c29a6-4798-71fa-a24a-b9af90050791_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cumulative changes in fair value from inception</link:label>
    <link:label id="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated increase (decrease) in fair value of financial assets designated as measured at fair value through profit or loss, attributable to changes in credit risk of financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets"/>
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    <link:label id="lab_srt_MajorCustomersAxis_019c29a6-4930-710e-9200-8fedfa8b0f8f_terseLabel_en-US" xlink:label="lab_srt_MajorCustomersAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer [Axis]</link:label>
    <link:label id="lab_srt_MajorCustomersAxis_label_en-US" xlink:label="lab_srt_MajorCustomersAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MajorCustomersAxis" xlink:to="lab_srt_MajorCustomersAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax_019c29a6-48ae-7aec-bdfd-144c408c1f19_terseLabel_en-US" xlink:label="lab_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency translation movements</link:label>
    <link:label id="lab_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax_label_en-US" xlink:label="lab_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Exchange Differences On Cash Flow Hedges, Before Tax</link:label>
    <link:label id="lab_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax_documentation_en-US" xlink:label="lab_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gains (Losses) On Exchange Differences On Cash Flow Hedges, Before Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax" xlink:href="bbplc-20251231.xsd#bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax" xlink:to="lab_bbplc_GainsLossesOnExchangeDifferencesOnCashFlowHedgesBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_019c29a6-49d1-7ea9-a61d-f91335938b90_totalLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_019c29a6-49d1-7c15-974c-0c45de967c01_negatedLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Income statement</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss"/>
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    <link:label id="lab_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets_019c29a6-48ae-7e77-866c-210787e06213_terseLabel_en-US" xlink:label="lab_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Infrastructure</link:label>
    <link:label id="lab_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Infrastructure, Amount Contributed To Fair Value Of Plan Assets</link:label>
    <link:label id="lab_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets_documentation_en-US" xlink:label="lab_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of infrastructure contributed to the fair value of defined benefit plan assets.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets" xlink:href="bbplc-20251231.xsd#bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets" xlink:to="lab_bbplc_InfrastructureAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities_019c29a6-4828-7cc5-84d4-e7b209df5a4b_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total gains and losses in the period recognised in the income statement, liabilities</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HomeLoansMember_019c29a6-49d1-7a40-932c-bb09736a1298_terseLabel_en-US" xlink:label="lab_bbplc_HomeLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Home Loans</link:label>
    <link:label id="lab_bbplc_HomeLoansMember_label_en-US" xlink:label="lab_bbplc_HomeLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Home Loans [Member]</link:label>
    <link:label id="lab_bbplc_HomeLoansMember_documentation_en-US" xlink:label="lab_bbplc_HomeLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Home Loans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HomeLoansMember" xlink:href="bbplc-20251231.xsd#bbplc_HomeLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HomeLoansMember" xlink:to="lab_bbplc_HomeLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers_019c29a6-48ae-7be7-87fd-5a3100e2280f_terseLabel_en-US" xlink:label="lab_ifrs-full_AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortisation, capitalised contract costs</link:label>
    <link:label id="lab_ifrs-full_AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortisation, assets recognised from costs incurred to obtain or fulfil contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers"/>
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    <link:label id="lab_ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers_019c29a6-4828-7547-9a41-c5dd9b9dc1c0_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capitalised contract costs</link:label>
    <link:label id="lab_ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers_label_en-US" xlink:label="lab_ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets recognised from costs to obtain or fulfil contracts with customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers" xlink:to="lab_ifrs-full_AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table_019c29a6-4827-7aa2-8dfd-363abba4b0d8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis to changes in risk exposures that arise from contracts within scope of IFRS 17 [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table" xlink:to="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17Table" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares_019c29a6-4828-791d-927b-2bba1b3d1a9b_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers within the year (in shares)</link:label>
    <link:label id="lab_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares_label_en-US" xlink:label="lab_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Share Options Transferred In Share-Based Payment Arrangement, Shares</link:label>
    <link:label id="lab_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares_documentation_en-US" xlink:label="lab_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of share options transferred in a share-based payment arrangement.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares" xlink:to="lab_bbplc_NumberOfShareOptionsTransferredInShareBasedPaymentArrangementShares" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OneYearBeforeReportingYearMember_019c29a6-4828-788b-85dc-850225ee1d7e_terseLabel_en-US" xlink:label="lab_ifrs-full_OneYearBeforeReportingYearMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">One year before reporting year</link:label>
    <link:label id="lab_ifrs-full_OneYearBeforeReportingYearMember_label_en-US" xlink:label="lab_ifrs-full_OneYearBeforeReportingYearMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">One year before reporting year [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OneYearBeforeReportingYearMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OneYearBeforeReportingYearMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OneYearBeforeReportingYearMember" xlink:to="lab_ifrs-full_OneYearBeforeReportingYearMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_019c29a6-4828-7a54-83b8-fd0b013e3837_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought_019c29a6-4930-7dc3-9891-1d7d24993744_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of lawsuits with specified damages sought</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought_label_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Lawsuits With Specified Damages Sought</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought_documentation_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of lawsuits with damages sought specified.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought" xlink:to="lab_bbplc_NumberOfLawsuitsWithSpecifiedDamagesSought" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan_019c29a6-4798-7326-b073-cba08fe71ab6_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in net defined benefit liability (asset) resulting from transfer to a separate pension plan</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Net Defined Benefit Liability Asset Resulting From Transfer To A Separate Pension Plan</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Net Defined Benefit Liability Asset Resulting From Transfer To A Separate Pension Plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan" xlink:to="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetResultingFromTransferToASeparatePensionPlan" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestIncomeOnOtherFinancialAssets_019c29a6-48ae-711e-b49f-44bcec669dd7_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestIncomeOnOtherFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_ifrs-full_InterestIncomeOnOtherFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_InterestIncomeOnOtherFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest income on other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestIncomeOnOtherFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestIncomeOnOtherFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestIncomeOnOtherFinancialAssets" xlink:to="lab_ifrs-full_InterestIncomeOnOtherFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfHedgesAxis_019c29a6-4931-7d04-8270-224bfabfd846_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of hedges [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfHedgesAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfHedgesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of hedges [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfHedgesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfHedgesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfHedgesAxis" xlink:to="lab_ifrs-full_TypesOfHedgesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RecurringItemsAbstract_019c29a6-49d1-7061-bba9-991f5d771d93_terseLabel_en-US" xlink:label="lab_bbplc_RecurringItemsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recurring items:</link:label>
    <link:label id="lab_bbplc_RecurringItemsAbstract_label_en-US" xlink:label="lab_bbplc_RecurringItemsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recurring Items [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RecurringItemsAbstract" xlink:href="bbplc-20251231.xsd#bbplc_RecurringItemsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RecurringItemsAbstract" xlink:to="lab_bbplc_RecurringItemsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_019c29a6-4828-7a58-971c-3662d7f54a6e_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Five to ten years</link:label>
    <link:label id="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than five years and not later than ten years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:to="lab_ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember_019c29a6-48ae-7cda-83d5-7256022fb14e_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Over three years but not more than five years</link:label>
    <link:label id="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than three years and not later than five years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember" xlink:to="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReconciliationOfLeaseLiabilitiesRollForward_019c29a6-4828-73c4-b1bd-24a4b718028c_terseLabel_en-US" xlink:label="lab_bbplc_ReconciliationOfLeaseLiabilitiesRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation Of Lease Liabilities [Roll Forward]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfLeaseLiabilitiesRollForward_label_en-US" xlink:label="lab_bbplc_ReconciliationOfLeaseLiabilitiesRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation Of Lease Liabilities [Roll Forward]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfLeaseLiabilitiesRollForward_documentation_en-US" xlink:label="lab_bbplc_ReconciliationOfLeaseLiabilitiesRollForward" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reconciliation Of Lease Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReconciliationOfLeaseLiabilitiesRollForward" xlink:href="bbplc-20251231.xsd#bbplc_ReconciliationOfLeaseLiabilitiesRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReconciliationOfLeaseLiabilitiesRollForward" xlink:to="lab_bbplc_ReconciliationOfLeaseLiabilitiesRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_019c29a6-4931-75a4-a311-5f0e2dc47a76_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember_019c3f37-cf39-777d-a96a-19c462365ef4_terseLabel_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect on profit for the year (per above)</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember_label_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Profit (Loss) [Member]</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember_documentation_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Profit (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember" xlink:href="bbplc-20251231.xsd#bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember" xlink:to="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisProfitLossMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OffBalanceSheetNotionalAmountsOfAssets_019c29a6-49d1-729c-8055-a80d386174cf_terseLabel_en-US" xlink:label="lab_bbplc_OffBalanceSheetNotionalAmountsOfAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total off-balance sheet notional amounts</link:label>
    <link:label id="lab_bbplc_OffBalanceSheetNotionalAmountsOfAssets_label_en-US" xlink:label="lab_bbplc_OffBalanceSheetNotionalAmountsOfAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Off-Balance Sheet Notional Amounts Of Assets</link:label>
    <link:label id="lab_bbplc_OffBalanceSheetNotionalAmountsOfAssets_documentation_en-US" xlink:label="lab_bbplc_OffBalanceSheetNotionalAmountsOfAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total notional amounts of assets that do not appear on the balance sheet the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OffBalanceSheetNotionalAmountsOfAssets" xlink:href="bbplc-20251231.xsd#bbplc_OffBalanceSheetNotionalAmountsOfAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OffBalanceSheetNotionalAmountsOfAssets" xlink:to="lab_bbplc_OffBalanceSheetNotionalAmountsOfAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember_019c29a6-49d1-78b1-a106-a65cf8405a82_terseLabel_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.5% change in discount rate per annum</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember_label_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial Assumption Of Change In Discount Rate By Fifty Basis Points [Member]</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember_documentation_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Actuarial Assumption Of Change in Discount Rate by Fifty Basis Points.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember" xlink:href="bbplc-20251231.xsd#bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember" xlink:to="lab_bbplc_ActuarialAssumptionOfChangeInDiscountRateByFiftyBasisPointsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff_019c29a6-4828-7481-a9fe-be5483a6fb6b_terseLabel_en-US" xlink:label="lab_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Post write-off recoveries</link:label>
    <link:label id="lab_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff_019c29a6-4828-75f5-bf0a-765a67addb11_verboseLabel_en-US" xlink:label="lab_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Gain on recovery of loans and advances previously written off</link:label>
    <link:label id="lab_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff_label_en-US" xlink:label="lab_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain on recovery of loans and advances previously written off</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff" xlink:to="lab_ifrs-full_GainOnRecoveryOfLoansAndAdvancesPreviouslyWrittenOff" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory_019c29a6-4828-7630-a221-ff956f247fcd_terseLabel_en-US" xlink:label="lab_ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of ECL under 100% weighted scenarios for key modelled portfolios</link:label>
    <link:label id="lab_ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Explanation of inputs, assumptions and estimation techniques used to apply impairment requirements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory" xlink:to="lab_ifrs-full_ExplanationOfInputsAssumptionsAndEstimationTechniquesUsedToApplyImpairmentRequirementsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CapitalRequirementsAxis_019c29a6-4931-7882-8eb2-58e7dcee01bc_terseLabel_en-US" xlink:label="lab_ifrs-full_CapitalRequirementsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital requirements [axis]</link:label>
    <link:label id="lab_ifrs-full_CapitalRequirementsAxis_label_en-US" xlink:label="lab_ifrs-full_CapitalRequirementsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital requirements [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CapitalRequirementsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalRequirementsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CapitalRequirementsAxis" xlink:to="lab_ifrs-full_CapitalRequirementsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfEquityDomain_019c29a6-4798-7307-a960-e9de50a2b003_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of equity [domain]</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfEquityDomain_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of equity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityDomain" xlink:to="lab_ifrs-full_ComponentsOfEquityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UncollateralisedDerivativeFundingMember_019c29a6-4931-7d8f-8dae-278d9fbfdcc0_terseLabel_en-US" xlink:label="lab_bbplc_UncollateralisedDerivativeFundingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Uncollateralised derivative funding</link:label>
    <link:label id="lab_bbplc_UncollateralisedDerivativeFundingMember_label_en-US" xlink:label="lab_bbplc_UncollateralisedDerivativeFundingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Uncollateralised Derivative Funding [Member]</link:label>
    <link:label id="lab_bbplc_UncollateralisedDerivativeFundingMember_documentation_en-US" xlink:label="lab_bbplc_UncollateralisedDerivativeFundingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for uncollateralised derivative funding. This funding fair value adjustment accounts for the impact of incorporating the cost of funding into the valuation of uncollateralised and partially collateralised derivative portfolios and collateralised derivatives where the terms of the agreement do not allow the rehypothecation of collateral received.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UncollateralisedDerivativeFundingMember" xlink:href="bbplc-20251231.xsd#bbplc_UncollateralisedDerivativeFundingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UncollateralisedDerivativeFundingMember" xlink:to="lab_bbplc_UncollateralisedDerivativeFundingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems_019c29a6-48ae-7449-b6f0-352b7acf3a3e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultOneHundredPercentMember_019c29a6-4930-78e1-a3ca-be7dcedaab73_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultOneHundredPercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">100%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultOneHundredPercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultOneHundredPercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default One Hundred Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultOneHundredPercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultOneHundredPercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale and retail lending with a default grade of 22. A probability of default of 100%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultOneHundredPercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultOneHundredPercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultOneHundredPercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultOneHundredPercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageMember_019c29a6-4930-7617-96a6-f77622f278cc_verboseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Average</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageMember_019c29a6-4930-7ce8-a4da-1a2e08830a73_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageMember_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageMember" xlink:to="lab_ifrs-full_WeightedAverageMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProvisionForCreditCommitmentsMember_019c29a6-48ae-75b5-9efc-45cd5598ff2a_terseLabel_en-US" xlink:label="lab_ifrs-full_ProvisionForCreditCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected credit losses held against contingent liabilities and commitments</link:label>
    <link:label id="lab_ifrs-full_ProvisionForCreditCommitmentsMember_label_en-US" xlink:label="lab_ifrs-full_ProvisionForCreditCommitmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision for credit commitments [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProvisionForCreditCommitmentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionForCreditCommitmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProvisionForCreditCommitmentsMember" xlink:to="lab_ifrs-full_ProvisionForCreditCommitmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxAssets_019c29a6-4930-756e-931b-46db205183ce_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current tax assets</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxAssets_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxAssets" xlink:to="lab_ifrs-full_CurrentTaxAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfLawsuitsDismissed_019c29a6-4931-702a-aac2-337c830f62b2_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsDismissed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of lawsuits dismissed</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsDismissed_label_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsDismissed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Lawsuits Dismissed</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsDismissed_documentation_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsDismissed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Lawsuits Dismissed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfLawsuitsDismissed" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfLawsuitsDismissed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfLawsuitsDismissed" xlink:to="lab_bbplc_NumberOfLawsuitsDismissed" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LongevityReinuranceContratNettingMember_019c29a6-4931-7d26-b5d2-cd3f6b701e1b_terseLabel_en-US" xlink:label="lab_bbplc_LongevityReinuranceContratNettingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Longevity reinsurance contracts</link:label>
    <link:label id="lab_bbplc_LongevityReinuranceContratNettingMember_label_en-US" xlink:label="lab_bbplc_LongevityReinuranceContratNettingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Longevity Reinurance Contrat, Netting [Member]</link:label>
    <link:label id="lab_bbplc_LongevityReinuranceContratNettingMember_documentation_en-US" xlink:label="lab_bbplc_LongevityReinuranceContratNettingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Longevity Reinurance Contrat, Netting</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LongevityReinuranceContratNettingMember" xlink:href="bbplc-20251231.xsd#bbplc_LongevityReinuranceContratNettingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LongevityReinuranceContratNettingMember" xlink:to="lab_bbplc_LongevityReinuranceContratNettingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProvisionUsedOtherProvisions_019c29a6-4798-724e-a66b-2d62079e7707_negatedLabel_en-US" xlink:label="lab_ifrs-full_ProvisionUsedOtherProvisions" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Amounts utilised</link:label>
    <link:label id="lab_ifrs-full_ProvisionUsedOtherProvisions_label_en-US" xlink:label="lab_ifrs-full_ProvisionUsedOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision used, other provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProvisionUsedOtherProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProvisionUsedOtherProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProvisionUsedOtherProvisions" xlink:to="lab_ifrs-full_ProvisionUsedOtherProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RangeDomain_019c29a6-49d1-7e7f-a7e4-a271bf6c784f_terseLabel_en-US" xlink:label="lab_ifrs-full_RangeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Range [domain]</link:label>
    <link:label id="lab_ifrs-full_RangeDomain_label_en-US" xlink:label="lab_ifrs-full_RangeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RangeDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RangeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RangeDomain" xlink:to="lab_ifrs-full_RangeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ImpairmentAllowanceTotalMember_019c29a6-4827-7d65-897b-56d7a8a31380_terseLabel_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceTotalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total impairment allowance</link:label>
    <link:label id="lab_bbplc_ImpairmentAllowanceTotalMember_label_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceTotalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment Allowance, Total [Member]</link:label>
    <link:label id="lab_bbplc_ImpairmentAllowanceTotalMember_documentation_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceTotalMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Impairment Allowance, Total</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ImpairmentAllowanceTotalMember" xlink:href="bbplc-20251231.xsd#bbplc_ImpairmentAllowanceTotalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ImpairmentAllowanceTotalMember" xlink:to="lab_bbplc_ImpairmentAllowanceTotalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member_019c29a6-4930-77ca-adb0-79504855f17d_terseLabel_en-US" xlink:label="lab_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">4.836% Fixed Rate Subordinated Notes (USD 1,200m)</link:label>
    <link:label id="lab_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member_label_en-US" xlink:label="lab_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">4.836% Fixed Rate Subordinated Notes, Due 2028 [Member]</link:label>
    <link:label id="lab_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member_documentation_en-US" xlink:label="lab_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Subordinated Notes, maturing in 2028 and denominated in United States of America, Dollars currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member" xlink:href="bbplc-20251231.xsd#bbplc_A4.836FixedRateSubordinatedNotesDue2028Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member" xlink:to="lab_bbplc_A4.836FixedRateSubordinatedNotesDue2028Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A5ReverseDualCurrencySubordinatedMember_019c29a6-49d1-7563-9b01-7e6f94099239_terseLabel_en-US" xlink:label="lab_bbplc_A5ReverseDualCurrencySubordinatedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5% Reverse Dual Currency Undated Subordinated Loan (JPY&#160;12,000m)</link:label>
    <link:label id="lab_bbplc_A5ReverseDualCurrencySubordinatedMember_label_en-US" xlink:label="lab_bbplc_A5ReverseDualCurrencySubordinatedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">5% Reverse Dual Currency Subordinated [Member]</link:label>
    <link:label id="lab_bbplc_A5ReverseDualCurrencySubordinatedMember_documentation_en-US" xlink:label="lab_bbplc_A5ReverseDualCurrencySubordinatedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 5% Reverse Dual Currency Undated Subordinated Loan, with an initial call date of 2028 and denominated in Japan, Yen currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A5ReverseDualCurrencySubordinatedMember" xlink:href="bbplc-20251231.xsd#bbplc_A5ReverseDualCurrencySubordinatedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A5ReverseDualCurrencySubordinatedMember" xlink:to="lab_bbplc_A5ReverseDualCurrencySubordinatedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfContingentLiabilitiesAxis_019c29a6-49d1-7190-8472-d2dec4b98950_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of contingent liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfContingentLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of contingent liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfContingentLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems_019c29a6-4930-7a58-ae6b-7a247c18d5c8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis to changes in risk exposures that arise from contracts within scope of IFRS 17 [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis to changes in risk variables that arise from contracts within scope of IFRS 17 [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems" xlink:to="lab_ifrs-full_DisclosureOfSensitivityAnalysisToChangesInRiskExposuresThatAriseFromContractsWithinScopeOfIFRS17LineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_DirectorMember_019c29a6-4930-7083-8e53-d140b0d1ec66_terseLabel_en-US" xlink:label="lab_srt_DirectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Director</link:label>
    <link:label id="lab_srt_DirectorMember_label_en-US" xlink:label="lab_srt_DirectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Director [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_DirectorMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_DirectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_DirectorMember" xlink:to="lab_srt_DirectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OwnCreditMember_019c29a6-48ae-73ae-ac6c-dfa15bb0a99d_terseLabel_en-US" xlink:label="lab_bbplc_OwnCreditMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Own credit</link:label>
    <link:label id="lab_bbplc_OwnCreditMember_label_en-US" xlink:label="lab_bbplc_OwnCreditMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Own Credit [Member]</link:label>
    <link:label id="lab_bbplc_OwnCreditMember_documentation_en-US" xlink:label="lab_bbplc_OwnCreditMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Own Credit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OwnCreditMember" xlink:href="bbplc-20251231.xsd#bbplc_OwnCreditMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OwnCreditMember" xlink:to="lab_bbplc_OwnCreditMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NonRecurringItemsPercentagesAbstract_019c29a6-4798-77b8-ad16-90725c51949e_terseLabel_en-US" xlink:label="lab_bbplc_NonRecurringItemsPercentagesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-recurring items, percentages</link:label>
    <link:label id="lab_bbplc_NonRecurringItemsPercentagesAbstract_label_en-US" xlink:label="lab_bbplc_NonRecurringItemsPercentagesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Recurring Items, Percentages [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NonRecurringItemsPercentagesAbstract" xlink:href="bbplc-20251231.xsd#bbplc_NonRecurringItemsPercentagesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NonRecurringItemsPercentagesAbstract" xlink:to="lab_bbplc_NonRecurringItemsPercentagesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PostModelAdjustmentMember_019c29a6-4930-7088-83d3-9049b592c461_terseLabel_en-US" xlink:label="lab_bbplc_PostModelAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Post-model adjustment</link:label>
    <link:label id="lab_bbplc_PostModelAdjustmentMember_label_en-US" xlink:label="lab_bbplc_PostModelAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Post Model Adjustment [Member]</link:label>
    <link:label id="lab_bbplc_PostModelAdjustmentMember_documentation_en-US" xlink:label="lab_bbplc_PostModelAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Post Model Adjustment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PostModelAdjustmentMember" xlink:href="bbplc-20251231.xsd#bbplc_PostModelAdjustmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PostModelAdjustmentMember" xlink:to="lab_bbplc_PostModelAdjustmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory_019c29a6-49d1-7861-8fd3-5c24e27536f8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity of the value in use to key judgements in the calculations</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information for cash-generating units [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PercentageOfIssuedShareCapital_019c29a6-4828-7605-b18c-a7543d582558_terseLabel_en-US" xlink:label="lab_bbplc_PercentageOfIssuedShareCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of issued share capital</link:label>
    <link:label id="lab_bbplc_PercentageOfIssuedShareCapital_label_en-US" xlink:label="lab_bbplc_PercentageOfIssuedShareCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Issued Share Capital</link:label>
    <link:label id="lab_bbplc_PercentageOfIssuedShareCapital_documentation_en-US" xlink:label="lab_bbplc_PercentageOfIssuedShareCapital" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount issued share capital, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PercentageOfIssuedShareCapital" xlink:href="bbplc-20251231.xsd#bbplc_PercentageOfIssuedShareCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PercentageOfIssuedShareCapital" xlink:to="lab_bbplc_PercentageOfIssuedShareCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountsPayableRelatedPartyTransactions_019c29a6-48ae-73c1-8e2f-c80482667b8d_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts payable, related party transactions</link:label>
    <link:label id="lab_ifrs-full_AmountsPayableRelatedPartyTransactions_019c29a6-48ae-78cf-95e4-3097e4df99da_netLabel_en-US" xlink:label="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Deposits outstanding as at 31 December</link:label>
    <link:label id="lab_ifrs-full_AmountsPayableRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts payable, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsPayableRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:to="lab_ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpectedCreditLossRate_019c29a6-4828-74bd-aada-11f308ce1acf_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected credit loss rate</link:label>
    <link:label id="lab_ifrs-full_ExpectedCreditLossRate_019c29a6-4828-7fd0-9b7c-d7b983308244_verboseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossRate" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">ECL coverage</link:label>
    <link:label id="lab_ifrs-full_ExpectedCreditLossRate_label_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected credit loss rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedCreditLossRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpectedCreditLossRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpectedCreditLossRate" xlink:to="lab_ifrs-full_ExpectedCreditLossRate" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReceivablesPayablesMember_019c29a6-49d1-73e5-94c3-2e9fcc4fc93e_terseLabel_en-US" xlink:label="lab_bbplc_ReceivablesPayablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Receivables/payables</link:label>
    <link:label id="lab_bbplc_ReceivablesPayablesMember_label_en-US" xlink:label="lab_bbplc_ReceivablesPayablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivables (Payables) [Member]</link:label>
    <link:label id="lab_bbplc_ReceivablesPayablesMember_documentation_en-US" xlink:label="lab_bbplc_ReceivablesPayablesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Receivables (Payables)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReceivablesPayablesMember" xlink:href="bbplc-20251231.xsd#bbplc_ReceivablesPayablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReceivablesPayablesMember" xlink:to="lab_bbplc_ReceivablesPayablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfProductsAndServicesTable_019c29a6-4930-7d10-ad29-43ae3aee0698_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfProductsAndServicesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of products and services [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfProductsAndServicesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfProductsAndServicesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of products and services [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProductsAndServicesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfProductsAndServicesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfProductsAndServicesTable" xlink:to="lab_ifrs-full_DisclosureOfProductsAndServicesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PercentageOfFairValueOfSchemeAssets_019c29a6-49d1-7f59-8caa-ad90834ed59d_terseLabel_en-US" xlink:label="lab_bbplc_PercentageOfFairValueOfSchemeAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">% of total fair value of scheme assets</link:label>
    <link:label id="lab_bbplc_PercentageOfFairValueOfSchemeAssets_label_en-US" xlink:label="lab_bbplc_PercentageOfFairValueOfSchemeAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Fair Value Of Scheme Assets</link:label>
    <link:label id="lab_bbplc_PercentageOfFairValueOfSchemeAssets_documentation_en-US" xlink:label="lab_bbplc_PercentageOfFairValueOfSchemeAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The percentage of fair value of scheme assets.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PercentageOfFairValueOfSchemeAssets" xlink:href="bbplc-20251231.xsd#bbplc_PercentageOfFairValueOfSchemeAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PercentageOfFairValueOfSchemeAssets" xlink:to="lab_bbplc_PercentageOfFairValueOfSchemeAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount_019c29a6-48ae-785e-a691-694bd33e75ab_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Value in use exceeding carrying value</link:label>
    <link:label id="lab_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount_019c29a6-48ae-72d5-aa84-f5bfaf76e1d9_verboseLabel_en-US" xlink:label="lab_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Value in use exceeding carrying value</link:label>
    <link:label id="lab_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount_label_en-US" xlink:label="lab_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amount by which unit's recoverable amount exceeds its carrying amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount" xlink:to="lab_ifrs-full_AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysUKCorporateBankMember_019c29a6-48ae-75f4-8ca6-43a18801b639_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysUKCorporateBankMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays UK Corporate Bank</link:label>
    <link:label id="lab_bbplc_BarclaysUKCorporateBankMember_label_en-US" xlink:label="lab_bbplc_BarclaysUKCorporateBankMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays UK Corporate Bank [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysUKCorporateBankMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysUKCorporateBankMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays UK Corporate Bank</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysUKCorporateBankMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysUKCorporateBankMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysUKCorporateBankMember" xlink:to="lab_bbplc_BarclaysUKCorporateBankMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AddressTypeDomain_019c29a6-49d1-742d-ab20-441b505c2044_terseLabel_en-US" xlink:label="lab_dei_AddressTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Address Type [Domain]</link:label>
    <link:label id="lab_dei_AddressTypeDomain_label_en-US" xlink:label="lab_dei_AddressTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Address Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AddressTypeDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AddressTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AddressTypeDomain" xlink:to="lab_dei_AddressTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NotionalAmount_019c29a6-4931-7121-b764-8655cf748e37_terseLabel_en-US" xlink:label="lab_ifrs-full_NotionalAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notional contract amount</link:label>
    <link:label id="lab_ifrs-full_NotionalAmount_label_en-US" xlink:label="lab_ifrs-full_NotionalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notional amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotionalAmount" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotionalAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotionalAmount" xlink:to="lab_ifrs-full_NotionalAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment_019c29a6-4828-7aae-80f4-f7de7dc0279f_negatedTerseLabel_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net (gains)/losses related to (releases of) impairment</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment_019c29a6-4828-7a2b-ab67-7cae043ad9be_negatedLabel_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net (gains)/losses relating to (release of) impairment</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment_label_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification Adjustments On Financial Assets Measured At Fair Value Through Other Comprehensive Income, Before Tax, Due To Impairment</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment_documentation_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of reclassification adjustments due to impairment of financial assets measured at fair value through other comprehensive income, before tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Financial assets measured at fair value through other comprehensive income; Other comprehensive income]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment" xlink:to="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToImpairment" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member_019c29a6-4930-7f2d-a873-a37cbc083b81_terseLabel_en-US" xlink:label="lab_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">7.119% Fixed-to-Floating Rate Subordinated Callable Notes (USD 860m)</link:label>
    <link:label id="lab_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member_label_en-US" xlink:label="lab_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">7.119% Fixed-To-Floating Rate Subordinated Callable Notes Due 2034 [Member]</link:label>
    <link:label id="lab_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member_documentation_en-US" xlink:label="lab_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">7.119% Fixed-To-Floating Rate Subordinated Callable Notes Due 2034</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member" xlink:href="bbplc-20251231.xsd#bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member" xlink:to="lab_bbplc_A7119FixedToFloatingRateSubordinatedCallableNotesDue2034Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnconsolidatedStructuredEntitiesAxis_019c29a6-48ae-7826-9541-7a810901abaf_terseLabel_en-US" xlink:label="lab_ifrs-full_UnconsolidatedStructuredEntitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unconsolidated structured entities [axis]</link:label>
    <link:label id="lab_ifrs-full_UnconsolidatedStructuredEntitiesAxis_label_en-US" xlink:label="lab_ifrs-full_UnconsolidatedStructuredEntitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unconsolidated structured entities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnconsolidatedStructuredEntitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnconsolidatedStructuredEntitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnconsolidatedStructuredEntitiesAxis" xlink:to="lab_ifrs-full_UnconsolidatedStructuredEntitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedgesMember_019c29a6-4931-7c8f-a323-545debb88f98_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedgesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow hedging reserve</link:label>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedgesMember_label_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedgesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of cash flow hedges [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfCashFlowHedgesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfCashFlowHedgesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfCashFlowHedgesMember" xlink:to="lab_ifrs-full_ReserveOfCashFlowHedgesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LitigationSettlementsApprovedValue_019c29a6-4930-7379-ac67-1e1731d5283f_terseLabel_en-US" xlink:label="lab_bbplc_LitigationSettlementsApprovedValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Litigation settlements approved</link:label>
    <link:label id="lab_bbplc_LitigationSettlementsApprovedValue_label_en-US" xlink:label="lab_bbplc_LitigationSettlementsApprovedValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Litigation Settlements Approved, Value</link:label>
    <link:label id="lab_bbplc_LitigationSettlementsApprovedValue_documentation_en-US" xlink:label="lab_bbplc_LitigationSettlementsApprovedValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of litigation settlements approved or agreed upon.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LitigationSettlementsApprovedValue" xlink:href="bbplc-20251231.xsd#bbplc_LitigationSettlementsApprovedValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LitigationSettlementsApprovedValue" xlink:to="lab_bbplc_LitigationSettlementsApprovedValue" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfArbitrationRequestsReceived_019c29a6-49d1-715d-881d-b16b25326f6a_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfArbitrationRequestsReceived" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of arbitration requests received</link:label>
    <link:label id="lab_bbplc_NumberOfArbitrationRequestsReceived_label_en-US" xlink:label="lab_bbplc_NumberOfArbitrationRequestsReceived" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Arbitration Requests Received</link:label>
    <link:label id="lab_bbplc_NumberOfArbitrationRequestsReceived_documentation_en-US" xlink:label="lab_bbplc_NumberOfArbitrationRequestsReceived" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Arbitration Requests Received</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfArbitrationRequestsReceived" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfArbitrationRequestsReceived"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfArbitrationRequestsReceived" xlink:to="lab_bbplc_NumberOfArbitrationRequestsReceived" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DownsideTwoMember_019c29a6-48ae-7c6d-acc1-9e119ab7e910_terseLabel_en-US" xlink:label="lab_bbplc_DownsideTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Downside 2</link:label>
    <link:label id="lab_bbplc_DownsideTwoMember_label_en-US" xlink:label="lab_bbplc_DownsideTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Downside 2 [member]</link:label>
    <link:label id="lab_bbplc_DownsideTwoMember_documentation_en-US" xlink:label="lab_bbplc_DownsideTwoMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The downside 2 scenario. The adverse scenarios are calibrated to a similar severity to internal stress tests, whilst also considering IFRS 9 specific sensitivities and non-linearity. Downside 2 is benchmarked to the Bank of England's annual cyclical scenarios and to the most severe scenario from Moody's inventory, but is not designed to be the same. The Downside 2 scenario represents a severe global recession with substantial falls in both UK and US GDP. Unemployment in both markets rises towards 9% and there are substantial falls in asset prices including housing.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DownsideTwoMember" xlink:href="bbplc-20251231.xsd#bbplc_DownsideTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DownsideTwoMember" xlink:to="lab_bbplc_DownsideTwoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExchangeDifferencesOnTranslationAbstract_019c29a6-4798-78a4-8d4e-af7216f9ddbe_terseLabel_en-US" xlink:label="lab_ifrs-full_ExchangeDifferencesOnTranslationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency translation reserve</link:label>
    <link:label id="lab_ifrs-full_ExchangeDifferencesOnTranslationAbstract_label_en-US" xlink:label="lab_ifrs-full_ExchangeDifferencesOnTranslationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exchange differences on translation [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExchangeDifferencesOnTranslationAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExchangeDifferencesOnTranslationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExchangeDifferencesOnTranslationAbstract" xlink:to="lab_ifrs-full_ExchangeDifferencesOnTranslationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise_019c29a6-4828-7b1e-8fc9-62626514cd32_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Liabilities, carrying amount</link:label>
    <link:label id="lab_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise_019c29a6-4828-7b4c-a237-4372d2d29b4b_negatedLabel_en-US" xlink:label="lab_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Associated liabilities</link:label>
    <link:label id="lab_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise_label_en-US" xlink:label="lab_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Associated liabilities that entity continues to recognise</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise" xlink:to="lab_ifrs-full_AssociatedLiabilitiesThatEntityContinuesToRecognise" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherFeeAndCommissionIncome_019c29a6-4828-723d-bf08-e703c1f5e9a7_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherFeeAndCommissionIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other non-contract fee income</link:label>
    <link:label id="lab_ifrs-full_OtherFeeAndCommissionIncome_label_en-US" xlink:label="lab_ifrs-full_OtherFeeAndCommissionIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other fee and commission income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherFeeAndCommissionIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFeeAndCommissionIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherFeeAndCommissionIncome" xlink:to="lab_ifrs-full_OtherFeeAndCommissionIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis_019c29a6-4931-7a06-868b-e586e04fb5ee_terseLabel_en-US" xlink:label="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Continuing involvement in derecognised financial assets by type of transfer [axis]</link:label>
    <link:label id="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis_label_en-US" xlink:label="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Continuing involvement in derecognised financial assets by type of transfer [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xlink:to="lab_ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaturityDomain_019c29a6-48ae-71ba-9cfe-30ed5a23c788_terseLabel_en-US" xlink:label="lab_ifrs-full_MaturityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturity [domain]</link:label>
    <link:label id="lab_ifrs-full_MaturityDomain_label_en-US" xlink:label="lab_ifrs-full_MaturityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaturityDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityDomain" xlink:to="lab_ifrs-full_MaturityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_019c29a6-4828-7a5d-ae54-e01df3145d7e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Principal subsidiaries</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsWithContractualCashFlowsModifiedDuringReportingPeriodWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesAmortisedCostBeforeModification_019c29a6-49d1-77d4-a51c-3f59cbbd00ea_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWithContractualCashFlowsModifiedDuringReportingPeriodWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesAmortisedCostBeforeModification" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortised cost before modification</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsWithContractualCashFlowsModifiedDuringReportingPeriodWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesAmortisedCostBeforeModification_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWithContractualCashFlowsModifiedDuringReportingPeriodWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesAmortisedCostBeforeModification" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets with contractual cash flows modified during reporting period while loss allowance measured at lifetime expected credit losses, amortised cost before modification</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsWithContractualCashFlowsModifiedDuringReportingPeriodWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesAmortisedCostBeforeModification" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsWithContractualCashFlowsModifiedDuringReportingPeriodWhileLossAllowanceMeasuredAtLifetimeExpectedCreditLossesAmortisedCostBeforeModification"/>
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    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_019c29a6-4931-74bb-8dfc-e671acfcc7a0_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MarketComparablePricesMember_019c29a6-4798-78ef-bb30-f3c105059798_terseLabel_en-US" xlink:label="lab_ifrs-full_MarketComparablePricesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comparable pricing</link:label>
    <link:label id="lab_ifrs-full_MarketComparablePricesMember_label_en-US" xlink:label="lab_ifrs-full_MarketComparablePricesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market comparable prices [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MarketComparablePricesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MarketComparablePricesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MarketComparablePricesMember" xlink:to="lab_ifrs-full_MarketComparablePricesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CounterpartyNameAxis_019c29a6-48ae-7709-8854-8af53d0f29de_terseLabel_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:label id="lab_srt_CounterpartyNameAxis_label_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CounterpartyNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CounterpartyNameAxis" xlink:to="lab_srt_CounterpartyNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems_019c29a6-4828-7735-9153-475aec23f4e2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of associates [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of associates [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInAssociatesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_019c29a6-4828-7e4b-ba2e-ee750839054f_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BankAcceptanceAssetsPercentage_019c29a6-48ae-765f-9b2b-ebcf514af054_terseLabel_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral and settlement balance, percentage</link:label>
    <link:label id="lab_bbplc_BankAcceptanceAssetsPercentage_label_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank Acceptance Assets, Percentage</link:label>
    <link:label id="lab_bbplc_BankAcceptanceAssetsPercentage_documentation_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of cash collateral and settlement balance assets, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BankAcceptanceAssetsPercentage" xlink:href="bbplc-20251231.xsd#bbplc_BankAcceptanceAssetsPercentage"/>
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    <link:label id="lab_ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral_019c29a6-49d1-773e-a9a8-2c8b9ee58203_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-cash collateral pledged</link:label>
    <link:label id="lab_ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral_label_en-US" xlink:label="lab_ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-cash assets pledged as collateral for which transferee has right by contract or custom to sell or repledge collateral</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral" xlink:to="lab_ifrs-full_NoncashAssetsPledgedAsCollateralForWhichTransfereeHasRightByContractOrCustomToSellOrRepledgeCollateral" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_019c29a6-4828-7771-80cc-e6a181609ccc_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net (gains)/losses transferred to net profit</link:label>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_019c29a6-4828-765e-b43a-71bce17ae42f_negatedLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net (losses)/gains transferred to net profit</link:label>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_019c29a6-4828-7577-bfdd-976edbcfaaa8_negatedNetLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="resource" xml:lang="en-US">Amounts reclassified in relation to cash flows affecting profit or loss</link:label>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax_label_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification adjustments on cash flow hedges, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax"/>
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    <link:label id="lab_ifrs-full_InterestExpense_019c29a6-48ae-75e1-8d2e-7e4796bb9ffc_negatedLabel_en-US" xlink:label="lab_ifrs-full_InterestExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Interest and similar expense</link:label>
    <link:label id="lab_ifrs-full_InterestExpense_019c29a6-48ae-79fb-ba40-59f00de41371_negatedTotalLabel_en-US" xlink:label="lab_ifrs-full_InterestExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Interest and similar expense</link:label>
    <link:label id="lab_ifrs-full_InterestExpense_label_en-US" xlink:label="lab_ifrs-full_InterestExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpense" xlink:to="lab_ifrs-full_InterestExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems_019c29a6-4828-791c-a611-8d472f54a67b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:to="lab_ifrs-full_DisclosureOfGeographicalAreasLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ChangesInPropertyPlantAndEquipment_019c29a6-4930-702a-b619-286c4eecae3d_terseLabel_en-US" xlink:label="lab_ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property and equipment</link:label>
    <link:label id="lab_ifrs-full_ChangesInPropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_ChangesInPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ExpectedCreditLossesMember_019c29a6-49d1-7e85-83ab-00b3860b24f2_terseLabel_en-US" xlink:label="lab_bbplc_ExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL</link:label>
    <link:label id="lab_bbplc_ExpectedCreditLossesMember_label_en-US" xlink:label="lab_bbplc_ExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected Credit Losses [Member]</link:label>
    <link:label id="lab_bbplc_ExpectedCreditLossesMember_documentation_en-US" xlink:label="lab_bbplc_ExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the expected credit losses that result from default events on a financial instrument that are possible within the 12 months after the reporting date and all possible default events over the expected life of a financial instrument.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ExpectedCreditLossesMember" xlink:href="bbplc-20251231.xsd#bbplc_ExpectedCreditLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ExpectedCreditLossesMember" xlink:to="lab_bbplc_ExpectedCreditLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsPaidOrdinaryShares_019c29a6-49d1-79cc-9d59-83507cea2ced_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOrdinaryShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dividends on ordinary shares</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidOrdinaryShares_019c29a6-49d1-7c68-93c3-a01ffafbeea8_negatedLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOrdinaryShares" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Dividends on ordinary shares</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidOrdinaryShares_019c29a6-49d1-79f3-9cf7-cb4d7c79cbc8_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOrdinaryShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid, ordinary shares</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidOrdinaryShares_label_en-US" xlink:label="lab_ifrs-full_DividendsPaidOrdinaryShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends paid, ordinary shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidOrdinaryShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaidOrdinaryShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsPaidOrdinaryShares" xlink:to="lab_ifrs-full_DividendsPaidOrdinaryShares" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments_019c29a6-4798-7d26-8dfe-b9b60e401a1a_terseLabel_en-US" xlink:label="lab_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liquidating distributions subject to the ranking of reserve capital instruments (EUR/ USD per share)</link:label>
    <link:label id="lab_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments_label_en-US" xlink:label="lab_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liquidating Distributions Subject To The Ranking Of Reserve Capital Instruments</link:label>
    <link:label id="lab_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments_documentation_en-US" xlink:label="lab_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of liquidating distributions per share, subject to the ranking of reserve capital instruments, entitled to holders of preference shares are entitled to receive. This includes an amount equal to the accrued dividend for the then current dividend period to the date of the commencement of the winding-up or other such return of capital. If a dividend is not paid in full on any preference shares on any dividend payment date, then a dividend restriction shall apply. This dividend restriction will mean that neither the entity nor the parent company may (a) declare or pay a dividend (other than payment by the parent company of a final dividend declared by its shareholders prior to the relevant dividend payment date, or a dividend paid by Barclays Bank PLC to Barclays PLC or to a wholly owned subsidiary) on any of their respective ordinary shares, other preference shares or other share capital or (b) redeem, purchase, reduce or otherwise acquire any of their respective share capital, other than shares of the entity held by the parent company or a wholly owned subsidiary, until the earlier of: (1) the date on which the entity next declares and pays in full a preference dividend; and (2) the date on or by which all the preference shares are redeemed in full or purchased by the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments" xlink:href="bbplc-20251231.xsd#bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments" xlink:to="lab_bbplc_LiquidatingDistributionsSubjectToTheRankingOfReserveCapitalInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesDomain_019c29a6-4798-7672-9c2c-c36989592513_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesDomain" xlink:to="lab_ifrs-full_AssetsAndLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock_019c29a6-4931-761b-aa64-ad1e9c4cb756_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of credit risk profile by internal PD band for loans and advances at amortised cost, contingent liabilities and loan commitments</link:label>
    <link:label id="lab_bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Analysis Of Credit Risk Profile, Contingent Liabilities And Loan Commitments [Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Analysis Of Credit Risk Profile, Contingent Liabilities And Loan Commitments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfAnalysisOfCreditRiskProfileContingentLiabilitiesAndLoanCommitmentsTextBlock"/>
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    <link:label id="lab_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_019c29a6-4930-74a2-aa19-3d7975c5c2b8_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid to equity holders of parent, classified as financing activities</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends paid to equity holders of parent, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities"/>
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    <link:label id="lab_bbplc_WithinFiveYearsMember_019c29a6-4931-7b03-b03a-1858c1026611_terseLabel_en-US" xlink:label="lab_bbplc_WithinFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Within five years</link:label>
    <link:label id="lab_bbplc_WithinFiveYearsMember_label_en-US" xlink:label="lab_bbplc_WithinFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Within Five Years [Member]</link:label>
    <link:label id="lab_bbplc_WithinFiveYearsMember_documentation_en-US" xlink:label="lab_bbplc_WithinFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for expiration of carryforward within 5 years.</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_WithinFiveYearsMember" xlink:to="lab_bbplc_WithinFiveYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_019c29a6-4931-7782-aaed-ba71595c260d_verboseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Two to three years</link:label>
    <link:label id="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_019c29a6-4931-7743-a952-fff8429c60ed_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2027</link:label>
    <link:label id="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than two years and not later than three years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:to="lab_ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CondensedCashFlowStatementTable_019c29a6-4827-7662-8fcb-c971606eb789_terseLabel_en-US" xlink:label="lab_srt_CondensedCashFlowStatementTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statement [Table]</link:label>
    <link:label id="lab_srt_CondensedCashFlowStatementTable_label_en-US" xlink:label="lab_srt_CondensedCashFlowStatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statement [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedCashFlowStatementTable" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CondensedCashFlowStatementTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CondensedCashFlowStatementTable" xlink:to="lab_srt_CondensedCashFlowStatementTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsPaidOtherShares_019c29a6-4931-723d-a8e1-545d336c0ded_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOtherShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dividends on preference shares and other shareholders equity</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidOtherShares_019c29a6-4931-77b7-bd1e-051b7f87c493_negatedLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOtherShares" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Dividends on preference shares and other shareholders equity</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidOtherShares_019c29a6-4931-7218-8c86-41264211d814_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOtherShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends on preference shares and other shareholders equity</link:label>
    <link:label id="lab_ifrs-full_DividendsPaidOtherShares_label_en-US" xlink:label="lab_ifrs-full_DividendsPaidOtherShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends paid, other shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsPaidOtherShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsPaidOtherShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsPaidOtherShares" xlink:to="lab_ifrs-full_DividendsPaidOtherShares" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_019c29a6-4828-7596-97b5-45d38276f332_negatedLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net decrease/(increase) in derivative financial instruments</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_019c29a6-4828-7b3b-83c5-9b8c5944065b_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net (increase)/decrease in derivative financial instruments</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for gains (losses) on change in fair value of derivatives</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:to="lab_ifrs-full_AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_019c29a6-4930-74a9-b1ef-a49e3bc4b254_terseLabel_en-US" xlink:label="lab_ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts offset</link:label>
    <link:label id="lab_ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_label_en-US" xlink:label="lab_ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross financial assets set off against financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:to="lab_ifrs-full_GrossFinancialAssetsSetOffAgainstFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-48ae-7b9b-be6f-42643d2737bf_negatedLabel_en-US" xlink:label="lab_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Disposals</link:label>
    <link:label id="lab_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_label_en-US" xlink:label="lab_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease Through Disposal, Exposure to Credit Risk on Loan Commitments and Financial Guarantee Contracts</link:label>
    <link:label id="lab_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_documentation_en-US" xlink:label="lab_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease Through Disposal, Exposure to Credit Risk on Loan Commitments and Financial Guarantee Contracts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:to="lab_bbplc_DecreaseThroughDisposalExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory_019c29a6-48ae-7310-a038-460c137574d8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis of valuations using unobservable inputs, liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_019c29a6-4828-7e7c-817c-91bb19104438_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Banking surcharge and other items</link:label>
    <link:label id="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other tax effects for reconciliation between accounting profit and tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:to="lab_ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_019c29a6-49d1-7c3b-ae67-b5af0a50aba8_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for financial assets and liabilities - fair values</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for fair value measurement [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_019c29a6-49d1-7009-a4f5-0e06320df3cf_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about borrowings [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about borrowings [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems_019c29a6-49d1-740b-b70f-955c3a1995e5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis for actuarial assumptions [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis for actuarial assumptions [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems"/>
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    <link:label id="lab_bbplc_VestingPeriodThreeMember_019c3071-4b5c-72dd-a3c2-37818d928d6d_terseLabel_en-US" xlink:label="lab_bbplc_VestingPeriodThreeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period three</link:label>
    <link:label id="lab_bbplc_VestingPeriodThreeMember_label_en-US" xlink:label="lab_bbplc_VestingPeriodThreeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting Period Three [Member]</link:label>
    <link:label id="lab_bbplc_VestingPeriodThreeMember_documentation_en-US" xlink:label="lab_bbplc_VestingPeriodThreeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Vesting Period Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VestingPeriodThreeMember" xlink:href="bbplc-20251231.xsd#bbplc_VestingPeriodThreeMember"/>
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    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember_019c29a6-4827-73db-8b87-deba81e0a679_terseLabel_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, category trading</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember_label_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets At Fair Value Through Profit Or Loss, Category Trading [Member]</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember_documentation_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the financial assets at fair value through profit or loss category, located in trading income. [Refer: Financial liabilities at fair value through profit or loss]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryTradingMember"/>
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    <link:label id="lab_bbplc_NumberOfSeparateLawsuits_019c29a6-4931-734e-86d7-eb0d77125387_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfSeparateLawsuits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of separate lawsuit</link:label>
    <link:label id="lab_bbplc_NumberOfSeparateLawsuits_label_en-US" xlink:label="lab_bbplc_NumberOfSeparateLawsuits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Separate Lawsuits</link:label>
    <link:label id="lab_bbplc_NumberOfSeparateLawsuits_documentation_en-US" xlink:label="lab_bbplc_NumberOfSeparateLawsuits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Separate Lawsuits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfSeparateLawsuits" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfSeparateLawsuits"/>
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    <link:label id="lab_bbplc_OtherProceedingsMember_019c29a6-4930-78a6-bcb9-0fb0d4e29243_terseLabel_en-US" xlink:label="lab_bbplc_OtherProceedingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other proceedings</link:label>
    <link:label id="lab_bbplc_OtherProceedingsMember_label_en-US" xlink:label="lab_bbplc_OtherProceedingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Proceedings [Member]</link:label>
    <link:label id="lab_bbplc_OtherProceedingsMember_documentation_en-US" xlink:label="lab_bbplc_OtherProceedingsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Proceedings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherProceedingsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherProceedingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherProceedingsMember" xlink:to="lab_bbplc_OtherProceedingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityLineItems_019c29a6-48ae-78a7-b9b6-fa1fc26fe582_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [line items]</link:label>
    <link:label id="lab_ifrs-full_StatementOfChangesInEquityLineItems_label_en-US" xlink:label="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of changes in equity [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="lab_ifrs-full_StatementOfChangesInEquityLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract_019c29a6-4828-7654-a175-3f74b1353556_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Attributable to:</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income attributable to [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:to="lab_ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysSecuredFundingLMLimitedMember_019c29a6-48ae-75ff-a40c-a25a967c36ed_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysSecuredFundingLMLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Secured Funding (LM) Limited</link:label>
    <link:label id="lab_bbplc_BarclaysSecuredFundingLMLimitedMember_label_en-US" xlink:label="lab_bbplc_BarclaysSecuredFundingLMLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Secured Funding (LM) Limited [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysSecuredFundingLMLimitedMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysSecuredFundingLMLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Secured Funding (LM) Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysSecuredFundingLMLimitedMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysSecuredFundingLMLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysSecuredFundingLMLimitedMember" xlink:to="lab_bbplc_BarclaysSecuredFundingLMLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_VariousSubordinatedLoansMember_019c29a6-49d1-7d3c-8477-c0fbc4512673_terseLabel_en-US" xlink:label="lab_bbplc_VariousSubordinatedLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Various subordinated loans</link:label>
    <link:label id="lab_bbplc_VariousSubordinatedLoansMember_label_en-US" xlink:label="lab_bbplc_VariousSubordinatedLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Various Subordinated Loans [Member]</link:label>
    <link:label id="lab_bbplc_VariousSubordinatedLoansMember_documentation_en-US" xlink:label="lab_bbplc_VariousSubordinatedLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for various subordinated intra-group loans.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VariousSubordinatedLoansMember" xlink:href="bbplc-20251231.xsd#bbplc_VariousSubordinatedLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_VariousSubordinatedLoansMember" xlink:to="lab_bbplc_VariousSubordinatedLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations_019c29a6-4931-7c74-b6ff-1d21c773d80b_terseLabel_en-US" xlink:label="lab_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scheme as a percentage of total retirement benefit obligations</link:label>
    <link:label id="lab_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations_label_en-US" xlink:label="lab_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scheme As A Percentage Of Total Retirement Benefit Obligations</link:label>
    <link:label id="lab_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations_documentation_en-US" xlink:label="lab_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The scheme as a percentage of total retirement benefit obligations.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations" xlink:href="bbplc-20251231.xsd#bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations" xlink:to="lab_bbplc_SchemeAsAPercentageOfTotalRetirementBenefitObligations" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasTable_019c29a6-49d1-788d-ae4c-2456a0959571_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfGeographicalAreasTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of geographical areas [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfGeographicalAreasTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:to="lab_ifrs-full_DisclosureOfGeographicalAreasTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners_019c29a6-4931-7ead-95bb-6955df0425d3_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends approved but not recognised</link:label>
    <link:label id="lab_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners_label_en-US" xlink:label="lab_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners" xlink:to="lab_ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17_019c29a6-49d1-7182-864f-7a6fd83a8a2b_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in equity for the year due to reasonable possible decrease</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in equity due to reasonably possible decrease in risk variable that arises from contracts within scope of IFRS 17</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:to="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners_019c29a6-4798-70bc-847d-1fd670117387_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net equity impact on inter Barclays PLC Group transfers</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase through other contributions by owners, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019c29a6-48ae-7377-b16e-ff53ad78de2e_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total financial assets at fair value through the income statement</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019c29a6-48ae-703a-8151-0795989d285d_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through the income statement</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_019c29a6-48ae-7ed1-a710-9c494d5c3634_netLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Financial assets at FVTPL</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentMember_019c29a6-4930-7be9-9b5f-97b78114bf69_verboseLabel_en-US" xlink:label="lab_ifrs-full_CurrentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Not past due</link:label>
    <link:label id="lab_ifrs-full_CurrentMember_019c29a6-4930-7717-9c79-af09b402a54b_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2025</link:label>
    <link:label id="lab_ifrs-full_CurrentMember_label_en-US" xlink:label="lab_ifrs-full_CurrentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentMember" xlink:to="lab_ifrs-full_CurrentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill_019c29a6-49d1-7b87-81ae-7f78ff71766a_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Exchange and other movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, intangible assets and goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfFinancialPositionAbstract_019c29a6-4931-7a7f-8201-3297cb7b27b9_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement of financial position [abstract]</link:label>
    <link:label id="lab_ifrs-full_StatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of financial position [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfFinancialPositionAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="lab_ifrs-full_StatementOfFinancialPositionAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherOperatingIncomeExpense_019c29a6-4828-72e9-9dfb-a54b4de771a8_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_ifrs-full_OtherOperatingIncomeExpense_label_en-US" xlink:label="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other operating income (expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherOperatingIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherOperatingIncomeExpense" xlink:to="lab_ifrs-full_OtherOperatingIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_019c29a6-49d1-7704-bfe5-30a889b4985a_negatedLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense on other financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnOtherFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:to="lab_ifrs-full_InterestExpenseOnOtherFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_019c29a6-48ae-7aa2-92da-768f378a0592_terseLabel_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CoverAbstract" xlink:to="lab_dei_CoverAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_019c29a6-49d1-7aaa-a785-b07bc0dfef9c_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repurchase of shares and other equity instruments</link:label>
    <link:label id="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_label_en-US" xlink:label="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to acquire or redeem entity's shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="lab_ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_MaximumMember_019c29a6-4930-7ae5-8394-cfc5f6b8b10e_terseLabel_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum</link:label>
    <link:label id="lab_srt_MaximumMember_label_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MaximumMember" xlink:to="lab_srt_MaximumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfInitialLawsuitsCurrentlyStayed_019c29a6-4798-7035-b116-d857bfdb6516_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfInitialLawsuitsCurrentlyStayed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of initial lawsuits currently stayed</link:label>
    <link:label id="lab_bbplc_NumberOfInitialLawsuitsCurrentlyStayed_label_en-US" xlink:label="lab_bbplc_NumberOfInitialLawsuitsCurrentlyStayed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Initial Lawsuits Currently Stayed</link:label>
    <link:label id="lab_bbplc_NumberOfInitialLawsuitsCurrentlyStayed_documentation_en-US" xlink:label="lab_bbplc_NumberOfInitialLawsuitsCurrentlyStayed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Initial Lawsuits Currently Stayed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfInitialLawsuitsCurrentlyStayed" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfInitialLawsuitsCurrentlyStayed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfInitialLawsuitsCurrentlyStayed" xlink:to="lab_bbplc_NumberOfInitialLawsuitsCurrentlyStayed" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A4.75Euro100ParValueMember_019c29a6-4798-7a30-98e1-bf1ef64ed012_terseLabel_en-US" xlink:label="lab_bbplc_A4.75Euro100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Euro preference shares</link:label>
    <link:label id="lab_bbplc_A4.75Euro100ParValueMember_019c29a6-4798-7d74-b207-d2e0973ac1c0_verboseLabel_en-US" xlink:label="lab_bbplc_A4.75Euro100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">4.75% Euro preference shares</link:label>
    <link:label id="lab_bbplc_A4.75Euro100ParValueMember_label_en-US" xlink:label="lab_bbplc_A4.75Euro100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">4.75% Euro 100 Par Value [Member]</link:label>
    <link:label id="lab_bbplc_A4.75Euro100ParValueMember_documentation_en-US" xlink:label="lab_bbplc_A4.75Euro100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 4.75% EURO 100 par value non-cumulative callable preference shares.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A4.75Euro100ParValueMember" xlink:href="bbplc-20251231.xsd#bbplc_A4.75Euro100ParValueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A4.75Euro100ParValueMember" xlink:to="lab_bbplc_A4.75Euro100ParValueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DefinedBenefitPlansAxis_019c29a6-4931-71ca-86c9-2dd2a8d82f16_terseLabel_en-US" xlink:label="lab_ifrs-full_DefinedBenefitPlansAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined benefit plans [axis]</link:label>
    <link:label id="lab_ifrs-full_DefinedBenefitPlansAxis_label_en-US" xlink:label="lab_ifrs-full_DefinedBenefitPlansAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined benefit plans [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DefinedBenefitPlansAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DefinedBenefitPlansAxis" xlink:to="lab_ifrs-full_DefinedBenefitPlansAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnusedProvisionReversedOtherProvisions_019c29a6-48ae-7ccc-a104-68ccb1553299_negatedLabel_en-US" xlink:label="lab_ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Unused amounts reversed</link:label>
    <link:label id="lab_ifrs-full_UnusedProvisionReversedOtherProvisions_label_en-US" xlink:label="lab_ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unused provision reversed, other provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnusedProvisionReversedOtherProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:to="lab_ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InterestIncome1Member_019c29a6-48ae-7c03-8462-b6e9b6854407_terseLabel_en-US" xlink:label="lab_bbplc_InterestIncome1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recycled to net interest income</link:label>
    <link:label id="lab_bbplc_InterestIncome1Member_label_en-US" xlink:label="lab_bbplc_InterestIncome1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income1 [Member]</link:label>
    <link:label id="lab_bbplc_InterestIncome1Member_documentation_en-US" xlink:label="lab_bbplc_InterestIncome1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the amount of income arising from interest.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InterestIncome1Member" xlink:href="bbplc-20251231.xsd#bbplc_InterestIncome1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InterestIncome1Member" xlink:to="lab_bbplc_InterestIncome1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory_019c29a6-49d1-73f7-98f9-6d2bb35b0eb6_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for investment in subsidiaries</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for subsidiaries [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForSubsidiariesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities_019c29a6-4930-770a-89b4-617e33e15e97_negatedTerseLabel_en-US" xlink:label="lab_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid and other coupon payments on equity instruments</link:label>
    <link:label id="lab_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Paid And Other Coupon Payments On Equity Instruments, Classified As Financing Activities</link:label>
    <link:label id="lab_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities_documentation_en-US" xlink:label="lab_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash outflow for dividends paid by the entity and issue costs on equity instruments, classified as financing activities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities" xlink:href="bbplc-20251231.xsd#bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities" xlink:to="lab_bbplc_DividendsPaidAndOtherCouponPaymentsOnEquityInstrumentsClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory_019c29a6-4930-7968-babe-3b8ede01e6cd_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of credit impairment charges/ (releases)</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss and reversal of impairment loss [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory" xlink:to="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable_019c29a6-48ae-767e-a2ba-b4f0e3de60ef_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis for actuarial assumptions [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis for actuarial assumptions [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable"/>
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    <link:label id="lab_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember_019c29a6-4931-7961-b543-29c16399e750_terseLabel_en-US" xlink:label="lab_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">HMRC assessments concerning UK VAT</link:label>
    <link:label id="lab_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember_label_en-US" xlink:label="lab_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">HM Revenue And Customs (HMRC) Assessments Concerning UK Value Added Tax [Member]</link:label>
    <link:label id="lab_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember_documentation_en-US" xlink:label="lab_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">In March 2018 HMRC issued notices that have the effect of removing certain overseas subsidiaries that have operations in the UK from Barclays UK VAT group, in which group supplies between members are generally free from VAT.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember" xlink:href="bbplc-20251231.xsd#bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember" xlink:to="lab_bbplc_HMRevenueAndCustomsHMRCAssessmentsConcerningUKValueAddedTaxMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-4931-7af5-8a4b-8260e911c254_periodStartLabel_en-US" xlink:label="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Opening/Beginning balance</link:label>
    <link:label id="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-4931-7067-b477-d8448deb91f8_periodEndLabel_en-US" xlink:label="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Closing/Ending balance</link:label>
    <link:label id="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-4931-712d-ad78-a82beff8f41a_terseLabel_en-US" xlink:label="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exposure to credit risk on loan commitments and financial guarantee contracts</link:label>
    <link:label id="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_label_en-US" xlink:label="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exposure to credit risk on loan commitments and financial guarantee contracts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:to="lab_ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SalesFairValueMeasurementLiabilities_019c29a6-4828-756f-bce2-912a1a988dfe_terseLabel_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sales, fair value measurement, liabilities</link:label>
    <link:label id="lab_ifrs-full_SalesFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SalesFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_SalesFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityShellCompany_019c29a6-49d1-7df9-b992-426eae69963b_terseLabel_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Shell Company</link:label>
    <link:label id="lab_dei_EntityShellCompany_label_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Shell Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityShellCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityShellCompany" xlink:to="lab_dei_EntityShellCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CommitmentsMadeByEntityRelatedPartyTransactions_019c29a6-48ae-736a-bb50-baf065fb4ca8_terseLabel_en-US" xlink:label="lab_ifrs-full_CommitmentsMadeByEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments made by entity, related party transactions</link:label>
    <link:label id="lab_ifrs-full_CommitmentsMadeByEntityRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_CommitmentsMadeByEntityRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments made by entity, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CommitmentsMadeByEntityRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CommitmentsMadeByEntityRelatedPartyTransactions"/>
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    <link:label id="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets_019c29a6-4798-78a4-bdc5-87a356a44138_terseLabel_en-US" xlink:label="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset transfers from level 2 to level 1</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets" xlink:to="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyAssets" xlink:type="arc" order="1"/>
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    <link:label id="lab_bbplc_ProbabilityOfDefaultPointThreeToPointSixPercentMember_019c29a6-4930-755d-b730-2967e4f2b6d8_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointThreeToPointSixPercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.30 to 0.60%</link:label>
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    <link:label id="lab_bbplc_BarclaysAlzinInvestmentsS.aR.l.Member_019c29a6-4828-7e34-a1b5-12baef70c0d7_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysAlzinInvestmentsS.aR.l.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Alzin Investments S.&#224; r.l.</link:label>
    <link:label id="lab_bbplc_BarclaysAlzinInvestmentsS.aR.l.Member_label_en-US" xlink:label="lab_bbplc_BarclaysAlzinInvestmentsS.aR.l.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Alzin Investments S.&#224; r.l. [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysAlzinInvestmentsS.aR.l.Member_documentation_en-US" xlink:label="lab_bbplc_BarclaysAlzinInvestmentsS.aR.l.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Alzin Investments S.&#224; r.l.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysAlzinInvestmentsS.aR.l.Member" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysAlzinInvestmentsS.aR.l.Member"/>
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    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesDomain_019c29a6-4798-717c-b20a-4e4c9f8e64c5_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A520FixedRateSubordinatedNotesDue2026Member_019c29a6-48ae-7bb7-9bc2-17f152a36a73_terseLabel_en-US" xlink:label="lab_bbplc_A520FixedRateSubordinatedNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.20% Fixed Rate Subordinated Notes (USD 1,367m)</link:label>
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    <link:label id="lab_bbplc_A520FixedRateSubordinatedNotesDue2026Member_documentation_en-US" xlink:label="lab_bbplc_A520FixedRateSubordinatedNotesDue2026Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Subordinated Notes, maturing in 2026 and denominated in United States of America, Dollars currency.</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfCreditRiskExplanatory_019c29a6-4828-7c46-930d-3b032e793d40_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of movement in gross exposure and impairment allowance including provisions for loan commitments and financial guarantees</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfCreditRiskExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of credit risk [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCreditRiskExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCreditRiskExplanatory"/>
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    <link:label id="lab_bbplc_FinancialCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities_019c29a6-4828-7840-92d6-2e0dacc2160f_terseLabel_en-US" xlink:label="lab_bbplc_FinancialCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial collateral</link:label>
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    <link:label id="lab_bbplc_FinancialCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities_documentation_en-US" xlink:label="lab_bbplc_FinancialCollateralPledgedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of financial collateral pledged that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial liabilities. [Refer: Financial liabilities]</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory_019c29a6-4798-700f-887f-b6ba6d06231b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis of preparation</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersOutOfLevel1IntoLevel2Or3FairValueHierarchyAssetsHeldAtEndOfReportingPeriod" xlink:href="bbplc-20251231.xsd#bbplc_TransfersOutOfLevel1IntoLevel2Or3FairValueHierarchyAssetsHeldAtEndOfReportingPeriod"/>
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    <link:label id="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible10ChangeInForecastedCashFlowsAmount_documentation_en-US" xlink:label="lab_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible10ChangeInForecastedCashFlowsAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sensitivity Analysis For Impairment, Reasonably Possible 10% Change In Forecasted Cash Flows, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SensitivityAnalysisForImpairmentReasonablyPossible10ChangeInForecastedCashFlowsAmount" xlink:href="bbplc-20251231.xsd#bbplc_SensitivityAnalysisForImpairmentReasonablyPossible10ChangeInForecastedCashFlowsAmount"/>
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    <link:label id="lab_bbplc_TotalFinancialLiabilitiesUndiscounted_label_en-US" xlink:label="lab_bbplc_TotalFinancialLiabilitiesUndiscounted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Financial Liabilities, Undiscounted</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TotalFinancialLiabilitiesUndiscounted" xlink:href="bbplc-20251231.xsd#bbplc_TotalFinancialLiabilitiesUndiscounted"/>
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    <link:label id="lab_dei_DocumentFiscalPeriodFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalPeriodFocus"/>
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    <link:label id="lab_ifrs-full_Assets_019c29a6-4931-7a8d-9edb-3de755df3c3e_totalLabel_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_ifrs-full_Assets_019c29a6-4931-7907-aab4-4213acb0266f_verboseLabel_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_ifrs-full_Assets_019c29a6-4931-7262-a1a9-22c6399452b3_terseLabel_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_ifrs-full_Assets_label_en-US" xlink:label="lab_ifrs-full_Assets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Assets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Assets"/>
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    <link:label id="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax_019c29a6-4931-73af-a56d-4ace98b8073b_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency translation movements</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on exchange differences on translation of foreign operations, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:to="lab_ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransactionalBankingServicesMember_019c29a6-48ae-7374-83a2-ed8e18d0fdff_terseLabel_en-US" xlink:label="lab_bbplc_TransactionalBankingServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transactional</link:label>
    <link:label id="lab_bbplc_TransactionalBankingServicesMember_label_en-US" xlink:label="lab_bbplc_TransactionalBankingServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transactional Banking Services [Member]</link:label>
    <link:label id="lab_bbplc_TransactionalBankingServicesMember_documentation_en-US" xlink:label="lab_bbplc_TransactionalBankingServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for fees fees from service charges on deposit account, cash management services and transactional processing fees. These fees include such items as ATM fees, wire transfer fees, balance transfer fees, overdraft or late fees and foreign exchange fees, among others.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransactionalBankingServicesMember" xlink:href="bbplc-20251231.xsd#bbplc_TransactionalBankingServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransactionalBankingServicesMember" xlink:to="lab_bbplc_TransactionalBankingServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities_019c29a6-48ae-7c50-b56a-3aed2accec3d_terseLabel_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale or redemption of financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sales or maturity of financial assets measured at fair value through other comprehensive income, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_ProceedsFromSalesOrMaturityOfFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain_019c29a6-4930-711e-b1e8-ac39497d47c6_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Associates [domain]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Associates [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInAssociatesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:to="lab_ifrs-full_SignificantInvestmentsInAssociatesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember_019c29a6-4828-741c-88f0-c7896c7a16e3_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FX - IR correlation</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Foreign Exchange, Measurement Input [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the probability of default on foreign exchange used as a measurement input.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember" xlink:to="lab_bbplc_ProbabilityOfDefaultForeignExchangeMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019c29a6-49d1-7fec-8d3a-1d28e2a0c7f5_terseLabel_en-US" xlink:label="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements and other similar secured borrowing at amortised cost</link:label>
    <link:label id="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019c29a6-49d1-71ec-8f7b-20677ee3ae61_verboseLabel_en-US" xlink:label="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements and other similar secured borrowing</link:label>
    <link:label id="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019c29a6-49d1-79c5-85df-5838f573df9a_negatedLabel_en-US" xlink:label="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements and other similar secured borrowing</link:label>
    <link:label id="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019c29a6-49d1-7fb6-9921-b13b44c9cc08_totalLabel_en-US" xlink:label="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements and other similar secured borrowing</link:label>
    <link:label id="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent_label_en-US" xlink:label="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repurchase agreements and cash collateral on securities lent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:to="lab_ifrs-full_RepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_019c29a6-4931-7258-8cf2-2ce5a11dcb73_totalLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax expense (income) and adjustments for current tax of prior periods</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:to="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_019c29a6-4828-7464-b3b1-ce811ae6d002_terseLabel_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_label_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EquityMethodInvesteeNameDomain" xlink:to="lab_srt_EquityMethodInvesteeNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CreditRiskMember_019c29a6-4827-76c9-806d-31e420ea1d31_verboseLabel_en-US" xlink:label="lab_ifrs-full_CreditRiskMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Credit risk</link:label>
    <link:label id="lab_ifrs-full_CreditRiskMember_019c29a6-4827-7a54-8d06-cc4ce06889d8_netLabel_en-US" xlink:label="lab_ifrs-full_CreditRiskMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Weighted</link:label>
    <link:label id="lab_ifrs-full_CreditRiskMember_019c29a6-4827-78f8-a19f-50ee12ff2aac_terseLabel_en-US" xlink:label="lab_ifrs-full_CreditRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit derivatives</link:label>
    <link:label id="lab_ifrs-full_CreditRiskMember_label_en-US" xlink:label="lab_ifrs-full_CreditRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit risk [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CreditRiskMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CreditRiskMember" xlink:to="lab_ifrs-full_CreditRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember_019c29a6-4930-78bf-b0ff-76a5c9c8ea24_terseLabel_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change in life expectancy by one year</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember_label_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial Assumption Of Change In Life Expectancy After Retirement [Member]</link:label>
    <link:label id="lab_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember_documentation_en-US" xlink:label="lab_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Actuarial Assumption Of Change In life expectancy by one year.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember" xlink:href="bbplc-20251231.xsd#bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember" xlink:to="lab_bbplc_ActuarialAssumptionOfChangeInLifeExpectancyAfterRetirementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentPropertyMember_019c29a6-4798-7a00-a33a-1d3c3786b047_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentPropertyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment property</link:label>
    <link:label id="lab_ifrs-full_InvestmentPropertyMember_019c29a6-4798-7dc1-aa95-8978327bebbc_netLabel_en-US" xlink:label="lab_ifrs-full_InvestmentPropertyMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Property</link:label>
    <link:label id="lab_ifrs-full_InvestmentPropertyMember_label_en-US" xlink:label="lab_ifrs-full_InvestmentPropertyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment property [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentPropertyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentPropertyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentPropertyMember" xlink:to="lab_ifrs-full_InvestmentPropertyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions_019c29a6-48ae-70fe-ae76-2cbf4dd119c8_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans outstanding as at 31 December</link:label>
    <link:label id="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions_label_en-US" xlink:label="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts receivable, related party transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsReceivableRelatedPartyTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:to="lab_ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssuesFairValueMeasurementLiabilities_019c29a6-48ae-71d0-91dc-d92528eb6b32_negatedLabel_en-US" xlink:label="lab_ifrs-full_IssuesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Issues, fair value measurement, liabilities</link:label>
    <link:label id="lab_ifrs-full_IssuesFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_IssuesFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issues, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuesFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuesFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuesFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_IssuesFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesAxis_019c29a6-49d1-73d3-bc1d-1f52eb4c85cb_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of interest rates [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of interest rates [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfInterestRatesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInterestRatesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesAxis" xlink:to="lab_ifrs-full_TypesOfInterestRatesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock_019c29a6-4827-7960-98c1-12b9d4b10122_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of Balance Sheet credit quality</link:label>
    <link:label id="lab_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of Credit Quality of Assets Exposed to Credit Risk [Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of Credit Quality of Assets Exposed to Credit Risk</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock" xlink:to="lab_bbplc_DisclosureOfCreditQualityOfAssetsExposedToCreditRiskTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019c29a6-4827-7cf4-9517-fd270a21b888_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through the income statement</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019c29a6-4827-7de5-b1f8-f0686de2a02f_netLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through the income statement</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019c29a6-4827-7d8c-b2da-69d89a5e04a3_totalLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_019c29a6-4827-7cc4-853c-3a84ad37fd4a_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total financial assets at fair value through the income statement</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_019c29a6-4798-7e8f-8c6c-ea8ba80daefd_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssuedCapitalMember_019c29a6-4827-7511-9247-f98304d3dbca_terseLabel_en-US" xlink:label="lab_ifrs-full_IssuedCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share capital</link:label>
    <link:label id="lab_ifrs-full_IssuedCapitalMember_label_en-US" xlink:label="lab_ifrs-full_IssuedCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issued capital [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuedCapitalMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuedCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuedCapitalMember" xlink:to="lab_ifrs-full_IssuedCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BankAcceptanceLiabilities_019c29a6-49d1-78fb-b3f0-cfaf3d7aec01_terseLabel_en-US" xlink:label="lab_ifrs-full_BankAcceptanceLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral and settlement balances</link:label>
    <link:label id="lab_ifrs-full_BankAcceptanceLiabilities_label_en-US" xlink:label="lab_ifrs-full_BankAcceptanceLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank acceptance liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BankAcceptanceLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BankAcceptanceLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BankAcceptanceLiabilities" xlink:to="lab_ifrs-full_BankAcceptanceLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherReservesMember_019c29a6-48ae-71f7-bd86-eae35fca9ad7_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherReservesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other reserves</link:label>
    <link:label id="lab_ifrs-full_OtherReservesMember_label_en-US" xlink:label="lab_ifrs-full_OtherReservesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other reserves [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherReservesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherReservesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherReservesMember" xlink:to="lab_ifrs-full_OtherReservesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LossesOnLitigationSettlements_019c29a6-48ae-7f97-83aa-3feb81192e73_negatedLabel_en-US" xlink:label="lab_ifrs-full_LossesOnLitigationSettlements" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Litigation and conduct</link:label>
    <link:label id="lab_ifrs-full_LossesOnLitigationSettlements_label_en-US" xlink:label="lab_ifrs-full_LossesOnLitigationSettlements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Losses on litigation settlements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LossesOnLitigationSettlements" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LossesOnLitigationSettlements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LossesOnLitigationSettlements" xlink:to="lab_ifrs-full_LossesOnLitigationSettlements" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress_019c29a6-4828-7a83-8a8f-1b9357b4609e_terseLabel_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible provisions for UK customer redress, percentage</link:label>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress_label_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Non-Deductible Provisions For UK Customer Redress</link:label>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress_documentation_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from non-deductible provisionsfor UK customer redress. [Refer: Average effective tax rate; Applicable tax rate]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:href="bbplc-20251231.xsd#bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:to="lab_bbplc_TaxRateEffectNonDeductibleProvisionsForUKCustomerRedress" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxRateEffectFromChangeInTaxRate_019c29a6-48ae-77f2-8814-d1cb3c9c28a6_terseLabel_en-US" xlink:label="lab_ifrs-full_TaxRateEffectFromChangeInTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax relief on payments made under AT1 instruments, percentage</link:label>
    <link:label id="lab_ifrs-full_TaxRateEffectFromChangeInTaxRate_label_en-US" xlink:label="lab_ifrs-full_TaxRateEffectFromChangeInTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax rate effect from change in tax rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxRateEffectFromChangeInTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxRateEffectFromChangeInTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxRateEffectFromChangeInTaxRate" xlink:to="lab_ifrs-full_TaxRateEffectFromChangeInTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember_019c29a6-4930-7ab9-83aa-f5f72df86dfc_terseLabel_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Life expectancy at 40 for future pensioners at 40 years, females</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember_label_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Life Expectancy At 60 For Future Pensioners At 40 Years, Females [Member]</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember_documentation_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for life expectancy of females at 60 for future pensioners currently aged 40, used as actuarial assumptions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember" xlink:href="bbplc-20251231.xsd#bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember" xlink:to="lab_bbplc_LifeExpectancyAt60ForFuturePensionersAt40YearsFemalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances_019c29a6-4930-762d-ac2e-826a806c2486_terseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net write-offs</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss (reversal of impairment loss) recognised in profit or loss, loans and advances</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances" xlink:to="lab_ifrs-full_ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossLoansAndAdvances" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_019c29a6-49d1-793a-af8d-19390525a594_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable_019c29a6-4828-7de6-94a8-d6b53a7a5451_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss recognised or reversed for cash-generating unit [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss recognised or reversed for cash-generating unit [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable" xlink:to="lab_ifrs-full_DisclosureOfImpairmentLossRecognisedOrReversedTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities_019c29a6-48ae-73a0-baba-dbee3926f8ac_negatedLabel_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Unfavourable changes, Equity</link:label>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities_label_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease In Fair Value Measurement Due To Change In Multiple Unobservable Inputs To Reflect Reasonably Possible Alternative Assumptions, Recognised In OCI, After Tax, Assets (Liabilities)</link:label>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of decrease in the fair value measurement of assets (liabilities), recognised in other comprehensive income after tax, due to a change in multiple unobservable inputs to reflect reasonably possible alternative assumptions. [Refer: Tax income (expense)]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:to="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInOCIAfterTaxAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_019c29a6-48ae-723e-b26c-4e7789215d01_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities included in disposal group classified as held for sale</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of non-current assets or disposal groups classified as held for sale [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RiskDiversificationEffectMember_019c29a6-48ae-7e2b-8f10-384477fa8b1c_terseLabel_en-US" xlink:label="lab_ifrs-full_RiskDiversificationEffectMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diversification effect</link:label>
    <link:label id="lab_ifrs-full_RiskDiversificationEffectMember_label_en-US" xlink:label="lab_ifrs-full_RiskDiversificationEffectMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk diversification effect [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskDiversificationEffectMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskDiversificationEffectMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RiskDiversificationEffectMember" xlink:to="lab_ifrs-full_RiskDiversificationEffectMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UndatedSubordinatedLiabilities_019c29a6-48ae-776e-9aae-af85ef642617_terseLabel_en-US" xlink:label="lab_ifrs-full_UndatedSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Undated subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_UndatedSubordinatedLiabilities_label_en-US" xlink:label="lab_ifrs-full_UndatedSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Undated subordinated liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UndatedSubordinatedLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UndatedSubordinatedLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UndatedSubordinatedLiabilities" xlink:to="lab_ifrs-full_UndatedSubordinatedLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DeferredTaxAssetsBeforeOffsetting_019c29a6-4828-7499-af48-5fc86a89de1a_periodStartLabel_en-US" xlink:label="lab_bbplc_DeferredTaxAssetsBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Assets, beginning balance</link:label>
    <link:label id="lab_bbplc_DeferredTaxAssetsBeforeOffsetting_019c29a6-4828-7694-839e-1d9874afa902_periodEndLabel_en-US" xlink:label="lab_bbplc_DeferredTaxAssetsBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Assets, ending balance</link:label>
    <link:label id="lab_bbplc_DeferredTaxAssetsBeforeOffsetting_label_en-US" xlink:label="lab_bbplc_DeferredTaxAssetsBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Before Offsetting</link:label>
    <link:label id="lab_bbplc_DeferredTaxAssetsBeforeOffsetting_documentation_en-US" xlink:label="lab_bbplc_DeferredTaxAssetsBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits before offsetting asset and liability balances where there is a legal right to set-off and an intention to settle on a net basis.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DeferredTaxAssetsBeforeOffsetting" xlink:href="bbplc-20251231.xsd#bbplc_DeferredTaxAssetsBeforeOffsetting"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DeferredTaxAssetsBeforeOffsetting" xlink:to="lab_bbplc_DeferredTaxAssetsBeforeOffsetting" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TradedLoansMember_019c29a6-4798-77c6-a9d5-26dccd09336f_terseLabel_en-US" xlink:label="lab_bbplc_TradedLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Traded loans</link:label>
    <link:label id="lab_bbplc_TradedLoansMember_label_en-US" xlink:label="lab_bbplc_TradedLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Traded Loans [Member]</link:label>
    <link:label id="lab_bbplc_TradedLoansMember_documentation_en-US" xlink:label="lab_bbplc_TradedLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for traded loans.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TradedLoansMember" xlink:href="bbplc-20251231.xsd#bbplc_TradedLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TradedLoansMember" xlink:to="lab_bbplc_TradedLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory_019c29a6-4930-75e5-a9b8-103d3a3c83f6_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of continuing involvement in financial assets that have been derecognised</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of continuing involvement in derecognised financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory_019c29a6-48ae-7f9e-81bf-684698bb97f3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Structured entities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about interests in structured entity [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutInterestsInStructuredEntityExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RightofuseAssetsMember_019c29a6-48ae-7971-9aae-bf40b248721b_terseLabel_en-US" xlink:label="lab_ifrs-full_RightofuseAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Right of use assets</link:label>
    <link:label id="lab_ifrs-full_RightofuseAssetsMember_label_en-US" xlink:label="lab_ifrs-full_RightofuseAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Right-of-use assets [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RightofuseAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RightofuseAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RightofuseAssetsMember" xlink:to="lab_ifrs-full_RightofuseAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CreditSpreadMeasurementInputMember_019c29a6-4930-7121-bf83-dea5163b9268_terseLabel_en-US" xlink:label="lab_ifrs-full_CreditSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit spread</link:label>
    <link:label id="lab_ifrs-full_CreditSpreadMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_CreditSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit spread, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CreditSpreadMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditSpreadMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CreditSpreadMeasurementInputMember" xlink:to="lab_ifrs-full_CreditSpreadMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InflationRiskMember_019c29a6-49d1-78a7-93fb-edb1ae2847ef_terseLabel_en-US" xlink:label="lab_bbplc_InflationRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inflation risk</link:label>
    <link:label id="lab_bbplc_InflationRiskMember_label_en-US" xlink:label="lab_bbplc_InflationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inflation Risk [Member]</link:label>
    <link:label id="lab_bbplc_InflationRiskMember_documentation_en-US" xlink:label="lab_bbplc_InflationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the inflation risk factor.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InflationRiskMember" xlink:href="bbplc-20251231.xsd#bbplc_InflationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InflationRiskMember" xlink:to="lab_bbplc_InflationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-49d1-73ab-b920-83426b677901_terseLabel_en-US" xlink:label="lab_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed rate resetting contingent convertible securities</link:label>
    <link:label id="lab_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fixed Rate Resetting Perpetual Subordinated Contingent Convertible Securities [member]</link:label>
    <link:label id="lab_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Fixed Rate Resetting Perpetual Subordinated Contingent Convertible Securities of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_FixedRateResettingPerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherAssetsIncludingAmountsHeldForSale_019c29a6-48ae-744a-b78c-aa504425a017_terseLabel_en-US" xlink:label="lab_bbplc_OtherAssetsIncludingAmountsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_bbplc_OtherAssetsIncludingAmountsHeldForSale_label_en-US" xlink:label="lab_bbplc_OtherAssetsIncludingAmountsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets, Including Amounts Held For Sale</link:label>
    <link:label id="lab_bbplc_OtherAssetsIncludingAmountsHeldForSale_documentation_en-US" xlink:label="lab_bbplc_OtherAssetsIncludingAmountsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of of assets that the entity does not separately disclose in the same statement or note including, non-current assets or disposal groups classified as held for sale or as held for distribution to owners. [Refer: Non-current assets or disposal groups classified as held for distribution to owners; Non-current assets or disposal groups classified as held for sale]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherAssetsIncludingAmountsHeldForSale" xlink:href="bbplc-20251231.xsd#bbplc_OtherAssetsIncludingAmountsHeldForSale"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherAssetsIncludingAmountsHeldForSale" xlink:to="lab_bbplc_OtherAssetsIncludingAmountsHeldForSale" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock_019c29a6-4930-799c-b1eb-a9c63723e34e_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of assets pledged and assets transferred as security against liabilities</link:label>
    <link:label id="lab_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Carrying Amount Of The Assets Pledged And Assets Transferred As Security Against Liabilities [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of assets pledged and assets transferred as security against liabilities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock" xlink:to="lab_bbplc_DisclosureOfCarryingAmountOfTheAssetsPledgedAndAssetsTransferredAsSecurityAgainstLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_019c29a6-4828-7315-9d31-7de96845dfbb_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable_019c29a6-48ae-7cc3-a33e-f4b9086fac48_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Classified As Held For Sale [Table]</link:label>
    <link:label id="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable_label_en-US" xlink:label="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Classified As Held For Sale [Table]</link:label>
    <link:label id="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Assets And Liabilities Classified As Held For Sale [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable" xlink:to="lab_bbplc_DisclosureOfAssetsAndLiabilitiesClassifiedAsHeldForSaleTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowHedgesAbstract_019c29a6-48ae-719e-a4ba-0e1a0996d5ed_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowHedgesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow hedging reserve</link:label>
    <link:label id="lab_ifrs-full_CashFlowHedgesAbstract_label_en-US" xlink:label="lab_ifrs-full_CashFlowHedgesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flow hedges [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowHedgesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowHedgesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowHedgesAbstract" xlink:to="lab_ifrs-full_CashFlowHedgesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForOtherServices_019c29a6-49d1-72f3-9f64-fcf31d3f7f07_verboseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForOtherServices" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other services</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForOtherServices_019c29a6-49d1-7688-99fa-241552cd33d1_terseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForOtherServices" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other services</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForOtherServices_label_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForOtherServices" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor's remuneration for other services</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AuditorsRemunerationForOtherServices" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AuditorsRemunerationForOtherServices"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AuditorsRemunerationForOtherServices" xlink:to="lab_ifrs-full_AuditorsRemunerationForOtherServices" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems_019c29a6-49d1-7c88-8dd4-5d5de6355265_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-49d1-7603-9f1f-c94116c0ccee_terseLabel_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions</link:label>
    <link:label id="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions other than through business combinations, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory_019c29a6-48ae-73fb-ae80-686c1e064826_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIncomeTaxExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of income tax [text block]</link:label>
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    <link:label id="lab_bbplc_EquistoneFounderPartnerIIIL.P.Member_019c29a6-49d1-7e03-ae71-449f8a574ada_terseLabel_en-US" xlink:label="lab_bbplc_EquistoneFounderPartnerIIIL.P.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equistone Founder Partner III L.P.</link:label>
    <link:label id="lab_bbplc_EquistoneFounderPartnerIIIL.P.Member_label_en-US" xlink:label="lab_bbplc_EquistoneFounderPartnerIIIL.P.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equistone Founder Partner III L.P. [Member]</link:label>
    <link:label id="lab_bbplc_EquistoneFounderPartnerIIIL.P.Member_documentation_en-US" xlink:label="lab_bbplc_EquistoneFounderPartnerIIIL.P.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equistone Founder Partner III L.P.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_EquistoneFounderPartnerIIIL.P.Member" xlink:href="bbplc-20251231.xsd#bbplc_EquistoneFounderPartnerIIIL.P.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_EquistoneFounderPartnerIIIL.P.Member" xlink:to="lab_bbplc_EquistoneFounderPartnerIIIL.P.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CondensedCashFlowStatementsCaptionsLineItems_019c29a6-4930-7c9c-8398-0c671e6fcbdd_terseLabel_en-US" xlink:label="lab_srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statements, Captions [Line Items]</link:label>
    <link:label id="lab_srt_CondensedCashFlowStatementsCaptionsLineItems_label_en-US" xlink:label="lab_srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statements, Captions [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CondensedCashFlowStatementsCaptionsLineItems"/>
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    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionAbstract_019c29a6-49d1-7b80-91b1-a3858ab09563_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transferred financial assets that are not derecognised in their entirety [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transferred financial assets that are not derecognised in their entirety [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionAbstract"/>
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    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable_019c29a6-4798-7b62-b056-afb176326ff5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss and reversal of impairment loss [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss and reversal of impairment loss [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xlink:to="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory_019c29a6-4828-7aaa-88e0-a047980a1576_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of movements in options and awards</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of number and weighted average exercise prices of share options [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherRegionsMember_019c29a6-48ae-7157-9708-a0d987ff8a34_terseLabel_en-US" xlink:label="lab_bbplc_OtherRegionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Others</link:label>
    <link:label id="lab_bbplc_OtherRegionsMember_label_en-US" xlink:label="lab_bbplc_OtherRegionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Regions [Member]</link:label>
    <link:label id="lab_bbplc_OtherRegionsMember_documentation_en-US" xlink:label="lab_bbplc_OtherRegionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other Regions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherRegionsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherRegionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherRegionsMember" xlink:to="lab_bbplc_OtherRegionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems_019c29a6-4930-7b09-98bb-590ab3e4c8bb_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss and reversal of impairment loss [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of impairment loss and reversal of impairment loss [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xlink:to="lab_ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetbackedFinancingsMember_019c29a6-4828-7a4a-9094-c9960d0df4d0_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetbackedFinancingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Secured financing</link:label>
    <link:label id="lab_ifrs-full_AssetbackedFinancingsMember_019c29a6-4828-794c-996e-4a2e47a3157d_verboseLabel_en-US" xlink:label="lab_ifrs-full_AssetbackedFinancingsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Asset backed securities</link:label>
    <link:label id="lab_ifrs-full_AssetbackedFinancingsMember_label_en-US" xlink:label="lab_ifrs-full_AssetbackedFinancingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asset-backed financings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetbackedFinancingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetbackedFinancingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetbackedFinancingsMember" xlink:to="lab_ifrs-full_AssetbackedFinancingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A6278USD100ParValueMember_019c29a6-49d1-714e-bb4f-a6bb37c416c2_verboseLabel_en-US" xlink:label="lab_bbplc_A6278USD100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">US Dollar preference shares</link:label>
    <link:label id="lab_bbplc_A6278USD100ParValueMember_019c29a6-49d1-79dd-84d8-d4f73026e707_terseLabel_en-US" xlink:label="lab_bbplc_A6278USD100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">6.278% US preference shares</link:label>
    <link:label id="lab_bbplc_A6278USD100ParValueMember_label_en-US" xlink:label="lab_bbplc_A6278USD100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">6.278% USD 100 Par Value [Member]</link:label>
    <link:label id="lab_bbplc_A6278USD100ParValueMember_documentation_en-US" xlink:label="lab_bbplc_A6278USD100ParValueMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 6.278% US$100 par value non-cumulative callable preference shares.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A6278USD100ParValueMember" xlink:href="bbplc-20251231.xsd#bbplc_A6278USD100ParValueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A6278USD100ParValueMember" xlink:to="lab_bbplc_A6278USD100ParValueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CommodityPriceRiskMember_019c29a6-4828-7a9c-af81-e11a5fea740d_verboseLabel_en-US" xlink:label="lab_ifrs-full_CommodityPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Commodity risk</link:label>
    <link:label id="lab_ifrs-full_CommodityPriceRiskMember_019c29a6-4828-7e65-8b28-47c90bb4ea2d_terseLabel_en-US" xlink:label="lab_ifrs-full_CommodityPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commodity derivatives</link:label>
    <link:label id="lab_ifrs-full_CommodityPriceRiskMember_label_en-US" xlink:label="lab_ifrs-full_CommodityPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commodity price risk [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CommodityPriceRiskMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CommodityPriceRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CommodityPriceRiskMember" xlink:to="lab_ifrs-full_CommodityPriceRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PreManagementAdjustmentsMember_019c29a6-48ae-704a-a009-da5e8719c6c9_terseLabel_en-US" xlink:label="lab_bbplc_PreManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment allowance pre management adjustments</link:label>
    <link:label id="lab_bbplc_PreManagementAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_PreManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pre-Management Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_PreManagementAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_PreManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pre-Management Adjustments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PreManagementAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_PreManagementAdjustmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PreManagementAdjustmentsMember" xlink:to="lab_bbplc_PreManagementAdjustmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember_019c29a6-4798-7664-b1bf-fe0b1ebad35f_terseLabel_en-US" xlink:label="lab_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Performance guarantees, acceptances and endorsements</link:label>
    <link:label id="lab_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember_label_en-US" xlink:label="lab_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Performance Guarantees, Acceptances And Endorsements [Member]</link:label>
    <link:label id="lab_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember_documentation_en-US" xlink:label="lab_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for performance guarantees, acceptances and endorsements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember" xlink:href="bbplc-20251231.xsd#bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember" xlink:to="lab_bbplc_PerformanceGuaranteesAcceptancesAndEndorsementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_019c29a6-49d1-7f54-89d8-d4c944a3f69d_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Risk free interest rates</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk free interest rate, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MaximumFundingDeficitSecuredByCollateralPool_019c29a6-48ae-7d48-82c8-e475459cc341_terseLabel_en-US" xlink:label="lab_bbplc_MaximumFundingDeficitSecuredByCollateralPool" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum funding deficit secured by collateral pool</link:label>
    <link:label id="lab_bbplc_MaximumFundingDeficitSecuredByCollateralPool_label_en-US" xlink:label="lab_bbplc_MaximumFundingDeficitSecuredByCollateralPool" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum Funding Deficit Secured By Collateral Pool</link:label>
    <link:label id="lab_bbplc_MaximumFundingDeficitSecuredByCollateralPool_documentation_en-US" xlink:label="lab_bbplc_MaximumFundingDeficitSecuredByCollateralPool" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The maximum funding deficit by which collateral pool has been put in place to provide security.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MaximumFundingDeficitSecuredByCollateralPool" xlink:href="bbplc-20251231.xsd#bbplc_MaximumFundingDeficitSecuredByCollateralPool"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MaximumFundingDeficitSecuredByCollateralPool" xlink:to="lab_bbplc_MaximumFundingDeficitSecuredByCollateralPool" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradingIncomeExpense_019c29a6-4828-75de-b97e-178e55fc1c2d_terseLabel_en-US" xlink:label="lab_ifrs-full_TradingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net trading income</link:label>
    <link:label id="lab_ifrs-full_TradingIncomeExpense_019c29a6-4828-7a44-8472-d90dba494cac_verboseLabel_en-US" xlink:label="lab_ifrs-full_TradingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Trading income</link:label>
    <link:label id="lab_ifrs-full_TradingIncomeExpense_label_en-US" xlink:label="lab_ifrs-full_TradingIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading income (expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradingIncomeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradingIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradingIncomeExpense" xlink:to="lab_ifrs-full_TradingIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety_019c29a6-4827-76fd-8b43-2fb137fb0644_totalLabel_en-US" xlink:label="lab_ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net position</link:label>
    <link:label id="lab_ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety_label_en-US" xlink:label="lab_ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value of transferred financial assets (associated financial liabilities) that are not derecognised in their entirety</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety" xlink:to="lab_ifrs-full_FairValueOfTransferredFinancialAssetsAssociatedFinancialLiabilitiesThatAreNotDerecognisedInTheirEntirety" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IssueAndRedemptionOfOtherEquityInstruments_019c29a6-49d1-70b8-909c-d865914594f3_terseLabel_en-US" xlink:label="lab_bbplc_IssueAndRedemptionOfOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issue and redemption of other equity instruments</link:label>
    <link:label id="lab_bbplc_IssueAndRedemptionOfOtherEquityInstruments_label_en-US" xlink:label="lab_bbplc_IssueAndRedemptionOfOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issue And Redemption Of Other Equity Instruments</link:label>
    <link:label id="lab_bbplc_IssueAndRedemptionOfOtherEquityInstruments_documentation_en-US" xlink:label="lab_bbplc_IssueAndRedemptionOfOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase (decrease) in equity resulting from the issue and exchange of other equity instruments. [Refer: Equity]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IssueAndRedemptionOfOtherEquityInstruments" xlink:href="bbplc-20251231.xsd#bbplc_IssueAndRedemptionOfOtherEquityInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IssueAndRedemptionOfOtherEquityInstruments" xlink:to="lab_bbplc_IssueAndRedemptionOfOtherEquityInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_019c29a6-4930-70ba-8471-247b9d547f8f_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee settled Barclays PLC share schemes</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through share-based payment transactions, equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_019c29a6-4931-75f7-915c-6335baeb4d38_verboseLabel_en-US" xlink:label="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Hedges of net investments</link:label>
    <link:label id="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_019c29a6-4931-7860-a404-ab943042c543_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedge of net investment in foreign operations</link:label>
    <link:label id="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_019c29a6-4931-73f2-b249-a43166a989c4_netLabel_en-US" xlink:label="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Net investment</link:label>
    <link:label id="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember_label_en-US" xlink:label="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedges of net investment in foreign operations [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:to="lab_ifrs-full_HedgesOfNetInvestmentInForeignOperationsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate_019c29a6-48ae-736c-8495-e433a769c9b5_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in associate</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in associate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInAssociate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestInAssociate" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember_019c29a6-4828-77e4-aaa5-8671ea74f3d4_terseLabel_en-US" xlink:label="lab_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cards, unsecured loans and other personal lending</link:label>
    <link:label id="lab_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember_label_en-US" xlink:label="lab_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cards, Unsecured Loans And Other Personal Lending [Member]</link:label>
    <link:label id="lab_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember_documentation_en-US" xlink:label="lab_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the cards, unsecured loans and other personal lending industry.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember" xlink:href="bbplc-20251231.xsd#bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember" xlink:to="lab_bbplc_CardsUnsecuredLoansAndOtherPersonalLendingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows_019c29a6-49d1-7ec3-bf20-a8e2abcea930_terseLabel_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities designated at fair value, undiscounted</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows_label_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities At Fair Value Through Profit Or Loss, Designated Upon Initial Recognition Or Subsequently, Undiscounted Cash Flows</link:label>
    <link:label id="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows_documentation_en-US" xlink:label="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows" xlink:href="bbplc-20251231.xsd#bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows" xlink:to="lab_bbplc_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionOrSubsequentlyUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember_019c29a6-48ae-7011-9af5-d8e695aa34fe_terseLabel_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase and repurchase agreements</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember_019c29a6-48ae-7a61-baa5-0ad6fbc63fa4_verboseLabel_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember_label_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Repurchase And Repurchase Agreements [Member]</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember_documentation_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for securities purchased under resale agreements, securities sold under repurchase agreements, and other similar secured lending agreements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember" xlink:href="bbplc-20251231.xsd#bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember" xlink:to="lab_bbplc_ReverseRepurchaseAndRepurchaseAgreementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_019c29a6-48ae-73d2-b108-76713ced555c_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of property, plant and equipment [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of property, plant and equipment [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:to="lab_ifrs-full_ClassesOfPropertyPlantAndEquipmentDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCountry_019c29a6-48ae-7623-96b1-abfb8f633529_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCountry" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Country</link:label>
    <link:label id="lab_dei_EntityAddressCountry_label_en-US" xlink:label="lab_dei_EntityAddressCountry" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Country</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCountry" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCountry"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCountry" xlink:to="lab_dei_EntityAddressCountry" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_Cash1Member_019c29a6-4798-7e7e-ba19-ef662881e15e_terseLabel_en-US" xlink:label="lab_bbplc_Cash1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash</link:label>
    <link:label id="lab_bbplc_Cash1Member_label_en-US" xlink:label="lab_bbplc_Cash1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash1 [Member]</link:label>
    <link:label id="lab_bbplc_Cash1Member_documentation_en-US" xlink:label="lab_bbplc_Cash1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_Cash1Member" xlink:href="bbplc-20251231.xsd#bbplc_Cash1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_Cash1Member" xlink:to="lab_bbplc_Cash1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LossInCurrentOrPriorYearMember_019c29a6-4828-786d-b158-b78e9068d770_terseLabel_en-US" xlink:label="lab_bbplc_LossInCurrentOrPriorYearMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss in current or prior year</link:label>
    <link:label id="lab_bbplc_LossInCurrentOrPriorYearMember_label_en-US" xlink:label="lab_bbplc_LossInCurrentOrPriorYearMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss In Current Or Prior Year [Member]</link:label>
    <link:label id="lab_bbplc_LossInCurrentOrPriorYearMember_documentation_en-US" xlink:label="lab_bbplc_LossInCurrentOrPriorYearMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for loss suffered in either the current or prior year.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LossInCurrentOrPriorYearMember" xlink:href="bbplc-20251231.xsd#bbplc_LossInCurrentOrPriorYearMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LossInCurrentOrPriorYearMember" xlink:to="lab_bbplc_LossInCurrentOrPriorYearMember" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_EUR_019c29a6-49d1-737a-b8fe-17d1fbae7cb2_netLabel_en-US" xlink:label="lab_currency_EUR" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">EUR</link:label>
    <link:label id="lab_currency_EUR_019c29a6-49d1-7801-939f-dbbc59db19eb_verboseLabel_en-US" xlink:label="lab_currency_EUR" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">EUR foreign operations</link:label>
    <link:label id="lab_currency_EUR_label_en-US" xlink:label="lab_currency_EUR" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Euro Member Countries, Euro</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_EUR" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_EUR"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_EUR" xlink:to="lab_currency_EUR" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract_019c29a6-4828-7127-a538-7490ae233d1e_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract]</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract_label_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xlink:to="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member_019c29a6-4798-7c20-abd3-bde0ba9445dd_terseLabel_en-US" xlink:label="lab_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">4.616% Fixed Rate Resetting Subordinated Callable Notes (EUR 800m)</link:label>
    <link:label id="lab_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member_label_en-US" xlink:label="lab_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">4.616% Fixed Rate Resetting Subordinated Callable Notes, Due 2037 [Member]</link:label>
    <link:label id="lab_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member_documentation_en-US" xlink:label="lab_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">4.616% Fixed Rate Resetting Subordinated Callable Notes, Due 2037</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member" xlink:href="bbplc-20251231.xsd#bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member" xlink:to="lab_bbplc_A4.616FixedRateResettingSubordinatedCallableNotesDue2037Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems_019c29a6-48ae-7446-b7b6-43bc218e9ab5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MethodsOfGenerationDomain_019c29a6-48ae-7a33-8048-1232bad17778_terseLabel_en-US" xlink:label="lab_ifrs-full_MethodsOfGenerationDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Methods of generation [domain]</link:label>
    <link:label id="lab_ifrs-full_MethodsOfGenerationDomain_label_en-US" xlink:label="lab_ifrs-full_MethodsOfGenerationDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Methods of generation [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodsOfGenerationDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodsOfGenerationDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MethodsOfGenerationDomain" xlink:to="lab_ifrs-full_MethodsOfGenerationDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A6125UndatedSubordinatedNotesMember_019c29a6-49d1-7ce5-833e-1d4f0f6f82dc_terseLabel_en-US" xlink:label="lab_bbplc_A6125UndatedSubordinatedNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">6.125% Undated Subordinated Notes</link:label>
    <link:label id="lab_bbplc_A6125UndatedSubordinatedNotesMember_label_en-US" xlink:label="lab_bbplc_A6125UndatedSubordinatedNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">6.125% Undated Subordinated Notes [Member]</link:label>
    <link:label id="lab_bbplc_A6125UndatedSubordinatedNotesMember_documentation_en-US" xlink:label="lab_bbplc_A6125UndatedSubordinatedNotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 6.125% Undated Subordinated Notes, with an initial call date of 2027.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A6125UndatedSubordinatedNotesMember" xlink:href="bbplc-20251231.xsd#bbplc_A6125UndatedSubordinatedNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A6125UndatedSubordinatedNotesMember" xlink:to="lab_bbplc_A6125UndatedSubordinatedNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentAnnualReport_019c29a6-4931-76ca-a841-1a71f67b380d_terseLabel_en-US" xlink:label="lab_dei_DocumentAnnualReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Annual Report</link:label>
    <link:label id="lab_dei_DocumentAnnualReport_label_en-US" xlink:label="lab_dei_DocumentAnnualReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Annual Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentAnnualReport" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAnnualReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentAnnualReport" xlink:to="lab_dei_DocumentAnnualReport" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_019c29a6-48ae-7bc8-8346-ba2b1113f470_terseLabel_en-US" xlink:label="lab_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remeasurement - return on scheme assets less than discount rate</link:label>
    <link:label id="lab_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from return on plan assets excluding interest income or expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GeographicalAreasDomain_019c29a6-4930-7220-a65e-0d90d18825fe_terseLabel_en-US" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical areas [domain]</link:label>
    <link:label id="lab_ifrs-full_GeographicalAreasDomain_label_en-US" xlink:label="lab_ifrs-full_GeographicalAreasDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical areas [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasDomain" xlink:to="lab_ifrs-full_GeographicalAreasDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory_019c29a6-4930-7c07-8a81-9ae3482e4fe6_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in property, plant and equipment, including right-of-use assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInPropertyPlantAndEquipmentIncludingRightofuseAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_019c29a6-4798-7cdf-becd-815649de9520_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net loss on disposal of investments and property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_019c29a6-4798-76ca-a893-33b9e0922ab0_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net (profit)/loss on disposal of investments and property, plant and equipment</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for losses (gains) on disposal of non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:to="lab_ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ShortTermTradedInterestsMember_019c29a6-4828-7b54-ac06-95beba9d3d05_terseLabel_en-US" xlink:label="lab_bbplc_ShortTermTradedInterestsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term traded interests</link:label>
    <link:label id="lab_bbplc_ShortTermTradedInterestsMember_label_en-US" xlink:label="lab_bbplc_ShortTermTradedInterestsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-Term Traded Interests [Member]</link:label>
    <link:label id="lab_bbplc_ShortTermTradedInterestsMember_documentation_en-US" xlink:label="lab_bbplc_ShortTermTradedInterestsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for group buying and selling interests in structured entities as part of its trading activities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ShortTermTradedInterestsMember" xlink:href="bbplc-20251231.xsd#bbplc_ShortTermTradedInterestsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ShortTermTradedInterestsMember" xlink:to="lab_bbplc_ShortTermTradedInterestsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_019c29a6-4931-7773-8421-365b69a37e3c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of capital resources</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial risk management [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialRiskManagementExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SecuritiesAssetBackedMember_019c29a6-4931-7696-8e93-c070e4e38748_terseLabel_en-US" xlink:label="lab_bbplc_SecuritiesAssetBackedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset backed securities</link:label>
    <link:label id="lab_bbplc_SecuritiesAssetBackedMember_label_en-US" xlink:label="lab_bbplc_SecuritiesAssetBackedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities, Asset Backed [Member]</link:label>
    <link:label id="lab_bbplc_SecuritiesAssetBackedMember_documentation_en-US" xlink:label="lab_bbplc_SecuritiesAssetBackedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Securities, Asset Backed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SecuritiesAssetBackedMember" xlink:href="bbplc-20251231.xsd#bbplc_SecuritiesAssetBackedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SecuritiesAssetBackedMember" xlink:to="lab_bbplc_SecuritiesAssetBackedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered_019c29a6-49d1-703f-bc03-582a3c104825_terseLabel_en-US" xlink:label="lab_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of current pensioner liabilities covered</link:label>
    <link:label id="lab_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered_label_en-US" xlink:label="lab_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Longevity Reinsurance Contracts, Percentage Of Current Pensioner Liabilities Covered</link:label>
    <link:label id="lab_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered_documentation_en-US" xlink:label="lab_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Longevity Reinsurance Contracts, Percentage Of Current Pensioner Liabilities Covered</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered" xlink:href="bbplc-20251231.xsd#bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered" xlink:to="lab_bbplc_LongevityReinsuranceContractsPercentageOfCurrentPensionerLiabilitiesCovered" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting_019c29a6-49d1-7c23-952d-5c1c517c6b2c_negatedPeriodStartLabel_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="resource" xml:lang="en-US">Liabilities, beginning balance</link:label>
    <link:label id="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting_019c29a6-49d1-76d3-92ef-bc75936c5fdb_negatedPeriodEndLabel_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="resource" xml:lang="en-US">Liabilities, ending balance</link:label>
    <link:label id="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting_label_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Before Offsetting</link:label>
    <link:label id="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting_documentation_en-US" xlink:label="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amounts of income taxes payable in future periods in respect of taxable temporary differences before offsetting asset and liability balances where there is a legal right to set-off and an intention to settle on a net basis.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DeferredTaxLiabilitiesBeforeOffsetting" xlink:href="bbplc-20251231.xsd#bbplc_DeferredTaxLiabilitiesBeforeOffsetting"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DeferredTaxLiabilitiesBeforeOffsetting" xlink:to="lab_bbplc_DeferredTaxLiabilitiesBeforeOffsetting" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_019c29a6-4798-7636-afa2-fc223bdf10ea_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of other liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOtherLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysSecuritiesJapanLimitedMember_019c29a6-4828-7ae0-8da1-9c347678e254_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysSecuritiesJapanLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Securities Japan Limited</link:label>
    <link:label id="lab_bbplc_BarclaysSecuritiesJapanLimitedMember_label_en-US" xlink:label="lab_bbplc_BarclaysSecuritiesJapanLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Securities Japan Limited [member]</link:label>
    <link:label id="lab_bbplc_BarclaysSecuritiesJapanLimitedMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysSecuritiesJapanLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Barclays Securities Japan Limited.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysSecuritiesJapanLimitedMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysSecuritiesJapanLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysSecuritiesJapanLimitedMember" xlink:to="lab_bbplc_BarclaysSecuritiesJapanLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks_019c29a6-49d1-7ba1-8950-da189f173d1b_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and balances at central banks</link:label>
    <link:label id="lab_ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks_label_en-US" xlink:label="lab_ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest income on cash and bank balances at central banks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks" xlink:to="lab_ifrs-full_InterestIncomeOnCashAndBankBalancesAtCentralBanks" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory_019c29a6-48ae-7dad-8080-23267a590e3d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember_019c29a6-4798-7a2c-ae6a-bc87e81bb01a_terseLabel_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Life Expectancy At 60 For Remaining Population Of The Membership</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember_label_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Life Expectancy At 60 For Remaining Population Of The Membership [Member]</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember_documentation_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Life Expectancy At 60 For Remaining Population Of The Membership</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember" xlink:href="bbplc-20251231.xsd#bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember" xlink:to="lab_bbplc_LifeExpectancyAt60ForRemainingPopulationOfTheMembershipMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AdjustmentsInRespectOfPriorYears_019c29a6-48ae-78af-b8ba-c3f3620a78ae_terseLabel_en-US" xlink:label="lab_bbplc_AdjustmentsInRespectOfPriorYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments in respect of prior years</link:label>
    <link:label id="lab_bbplc_AdjustmentsInRespectOfPriorYears_label_en-US" xlink:label="lab_bbplc_AdjustmentsInRespectOfPriorYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments In Respect Of Prior Years</link:label>
    <link:label id="lab_bbplc_AdjustmentsInRespectOfPriorYears_documentation_en-US" xlink:label="lab_bbplc_AdjustmentsInRespectOfPriorYears" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The adjustments of tax expense (income) recognised in the period for current and deferred tax of prior periods.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AdjustmentsInRespectOfPriorYears" xlink:href="bbplc-20251231.xsd#bbplc_AdjustmentsInRespectOfPriorYears"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AdjustmentsInRespectOfPriorYears" xlink:to="lab_bbplc_AdjustmentsInRespectOfPriorYears" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities_019c29a6-4798-7e98-ae71-852a49a217a3_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Liability transfers from level 2 to level 1</link:label>
    <link:label id="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities_label_en-US" xlink:label="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers out of Level 2 into Level 1 of fair value hierarchy, liabilities held at end of reporting period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities" xlink:to="lab_ifrs-full_TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_019c29a6-48ae-7096-9640-7ee94a2e5ce9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Material accounting policies</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of material accounting policy information [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:to="lab_ifrs-full_DisclosureOfMaterialAccountingPolicyInformationExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems_019c29a6-48ae-70a1-849d-25af3d498350_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of continuing involvement in derecognised financial assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of continuing involvement in derecognised financial assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_019c29a6-4930-761c-b1f4-8aef47f346e8_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">(Decrease)/Increase in defined benefit obligation</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:to="lab_ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherLiabilities_019c29a6-4931-7ac2-96f3-a62a25bb8728_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_ifrs-full_OtherLiabilities_019c29a6-4931-70b7-8795-09c87f762241_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_ifrs-full_OtherLiabilities_label_en-US" xlink:label="lab_ifrs-full_OtherLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherLiabilities" xlink:to="lab_ifrs-full_OtherLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised_019c29a6-49d1-71d9-a843-329f032414b0_negatedLabel_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other long-term benefits &#8211; difference between awards granted and costs recognised</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised_label_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key Management Personnel Compensation Other Long-Term Benefits Difference Between Awards Granted And Costs Recognised</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised_documentation_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of compensation to key management personnel in the form of Other long-term benefits - difference between awards granted and costs recognised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:href="bbplc-20251231.xsd#bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:to="lab_bbplc_KeyManagementPersonnelCompensationOtherLongTermBenefitsDifferenceBetweenAwardsGrantedAndCostsRecognised" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PensionDefinedBenefitPlansMember_019c29a6-4930-78eb-b8ee-c9761dfcafa0_terseLabel_en-US" xlink:label="lab_ifrs-full_PensionDefinedBenefitPlansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pension defined benefit plans</link:label>
    <link:label id="lab_ifrs-full_PensionDefinedBenefitPlansMember_label_en-US" xlink:label="lab_ifrs-full_PensionDefinedBenefitPlansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension defined benefit plans [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PensionDefinedBenefitPlansMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PensionDefinedBenefitPlansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PensionDefinedBenefitPlansMember" xlink:to="lab_ifrs-full_PensionDefinedBenefitPlansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LoansAndAdvancesToCustomers_019c29a6-4798-79db-bc48-fde2833eea47_verboseLabel_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesToCustomers" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances to customers</link:label>
    <link:label id="lab_ifrs-full_LoansAndAdvancesToCustomers_label_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesToCustomers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and advances to customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToCustomers" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesToCustomers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoansAndAdvancesToCustomers" xlink:to="lab_ifrs-full_LoansAndAdvancesToCustomers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgeFundInvestmentsMember_019c29a6-49d1-7327-b5d4-5fdf1d0b6011_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgeFundInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedge funds</link:label>
    <link:label id="lab_ifrs-full_HedgeFundInvestmentsMember_label_en-US" xlink:label="lab_ifrs-full_HedgeFundInvestmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedge fund investments [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgeFundInvestmentsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgeFundInvestmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgeFundInvestmentsMember" xlink:to="lab_ifrs-full_HedgeFundInvestmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_019c29a6-4828-7b86-bf9a-af96bf00e6d5_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for financial liabilities at fair value through profit and loss</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for financial liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashCollateralAndSettlementsMember_019c29a6-48ae-76dc-8ee4-7fd2e1dcfb40_terseLabel_en-US" xlink:label="lab_bbplc_CashCollateralAndSettlementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral and settlements</link:label>
    <link:label id="lab_bbplc_CashCollateralAndSettlementsMember_label_en-US" xlink:label="lab_bbplc_CashCollateralAndSettlementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Collateral And Settlements [Member]</link:label>
    <link:label id="lab_bbplc_CashCollateralAndSettlementsMember_documentation_en-US" xlink:label="lab_bbplc_CashCollateralAndSettlementsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash Collateral And Settlements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashCollateralAndSettlementsMember" xlink:href="bbplc-20251231.xsd#bbplc_CashCollateralAndSettlementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashCollateralAndSettlementsMember" xlink:to="lab_bbplc_CashCollateralAndSettlementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities_019c29a6-48ae-73d3-88ff-788165e816ff_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends received, classified as operating activities</link:label>
    <link:label id="lab_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends received, classified as operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsReceivedClassifiedAsOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities" xlink:to="lab_ifrs-full_DividendsReceivedClassifiedAsOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherResourcingCostsAbstract_019c29a6-48ae-7317-bc3f-0cecf93add81_terseLabel_en-US" xlink:label="lab_bbplc_OtherResourcingCostsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other resourcing costs</link:label>
    <link:label id="lab_bbplc_OtherResourcingCostsAbstract_label_en-US" xlink:label="lab_bbplc_OtherResourcingCostsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Resourcing Costs [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherResourcingCostsAbstract" xlink:href="bbplc-20251231.xsd#bbplc_OtherResourcingCostsAbstract"/>
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    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_019c29a6-4931-7ef8-bcdb-ba7b0edd3f70_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit remeasurements</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans"/>
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    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_019c29a6-49d1-7f20-b4b1-1cda9bd63b4e_totalLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income/(loss) that may be recycled to profit or loss</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income that will be reclassified to profit or loss, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfOutstandingShareOptions_019c29a6-4798-73f0-8199-986a6131395f_terseLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of options/awards outstanding (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOutstandingShareOptions_019c29a6-4798-7b51-a368-ca755414cf7a_periodStartLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Outstanding at beginning of year/acquisition date (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOutstandingShareOptions_019c29a6-4798-7c8d-b494-a87dbae152c3_periodEndLabel_en-US" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Outstanding at end of year (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfOutstandingShareOptions_label_en-US" xlink:label="lab_ifrs-full_NumberOfOutstandingShareOptions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options outstanding in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfOutstandingShareOptions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfOutstandingShareOptions"/>
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    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_019c29a6-48ae-7143-ade0-0540890d19d3_terseLabel_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [axis]</link:label>
    <link:label id="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis_label_en-US" xlink:label="lab_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation techniques used in fair value measurement [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ValuationTechniquesUsedInFairValueMeasurementAxis"/>
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    <link:label id="lab_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock_019c29a6-4828-7739-8bfa-08658e9233c1_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of other related undertakings</link:label>
    <link:label id="lab_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Interests In Other Related Undertakings [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Interests In Other Related Undertakings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock" xlink:to="lab_bbplc_DisclosureOfInterestsInOtherRelatedUndertakingsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued_019c29a6-4828-7440-a531-fc8dd86bfee7_negatedLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Debt securities in issue</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense on debt instruments issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnDebtInstrumentsIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:to="lab_ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory_019c29a6-49d1-7756-a9aa-954052b8ece1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net trading income</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of trading income (expense) [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTradingIncomeExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativeDebitValuationAdjustmentsMember_019c29a6-4931-7f2b-b234-1dac8a663d3d_terseLabel_en-US" xlink:label="lab_bbplc_DerivativeDebitValuationAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative debit valuation adjustments</link:label>
    <link:label id="lab_bbplc_DerivativeDebitValuationAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_DerivativeDebitValuationAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Debit Valuation Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_DerivativeDebitValuationAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_DerivativeDebitValuationAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for derivative debit valuation adjustment for the impact on fair value of the entoty's own credit quality.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativeDebitValuationAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_DerivativeDebitValuationAdjustmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativeDebitValuationAdjustmentsMember" xlink:to="lab_bbplc_DerivativeDebitValuationAdjustmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory_019c29a6-49d1-76b1-bda3-99a9fc6ef3d6_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net fee and commission income</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fee and commission income (expense) [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFeeAndCommissionIncomeExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract_019c29a6-48ae-7a89-93c3-76287482a13b_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in property, plant and equipment [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in property, plant and equipment [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestRevenueExpense_019c29a6-4930-735e-9636-49dc0aba8990_totalLabel_en-US" xlink:label="lab_ifrs-full_InterestRevenueExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net interest income</link:label>
    <link:label id="lab_ifrs-full_InterestRevenueExpense_019c29a6-4930-7013-aa23-7721581259d8_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRevenueExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest income</link:label>
    <link:label id="lab_ifrs-full_InterestRevenueExpense_label_en-US" xlink:label="lab_ifrs-full_InterestRevenueExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest income (expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRevenueExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRevenueExpense" xlink:to="lab_ifrs-full_InterestRevenueExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFilerCategory_019c29a6-4828-7f65-a414-8a04a2c8b9fa_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:label id="lab_dei_EntityFilerCategory_label_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFilerCategory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory" xlink:to="lab_dei_EntityFilerCategory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity_019c29a6-4827-7d73-9ef3-a233dbafe98e_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax relating to items credited directly to equity</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax relating to items credited (charged) directly to equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xlink:to="lab_ifrs-full_CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_019c29a6-4930-7e5d-bd09-6d9227f59cf7_verboseLabel_en-US" xlink:label="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase agreements and other similar secured lending at amortised cost</link:label>
    <link:label id="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_019c29a6-4930-7d07-a36f-05c29bc69dc1_terseLabel_en-US" xlink:label="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase agreements and other similar secured lending</link:label>
    <link:label id="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_019c29a6-4930-7b3b-b986-d15bb66c9238_totalLabel_en-US" xlink:label="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase agreements and other similar secured lending</link:label>
    <link:label id="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_label_en-US" xlink:label="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse repurchase agreements and cash collateral on securities borrowed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:to="lab_ifrs-full_ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets_019c29a6-4931-7069-814f-eb48b33d7a49_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total gains or losses recognised in OCI, assets</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:to="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TradingIncomeMember_019c29a6-4798-74fd-94b4-9d8a56cb127a_terseLabel_en-US" xlink:label="lab_bbplc_TradingIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recycled to net trading income</link:label>
    <link:label id="lab_bbplc_TradingIncomeMember_label_en-US" xlink:label="lab_bbplc_TradingIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Income [Member]</link:label>
    <link:label id="lab_bbplc_TradingIncomeMember_documentation_en-US" xlink:label="lab_bbplc_TradingIncomeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Trading Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TradingIncomeMember" xlink:href="bbplc-20251231.xsd#bbplc_TradingIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TradingIncomeMember" xlink:to="lab_bbplc_TradingIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member_019c29a6-4931-701f-bffb-9133c2d02b0a_terseLabel_en-US" xlink:label="lab_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">4.973% Fixed Rate Resetting Subordinated Callable Notes (EUR 1,500m)</link:label>
    <link:label id="lab_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member_label_en-US" xlink:label="lab_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">4.973% Fixed Rate Resetting Subordinated Callable Notes, Due 2036 [Member]</link:label>
    <link:label id="lab_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member_documentation_en-US" xlink:label="lab_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">4.973% Fixed Rate Resetting Subordinated Callable Notes, Due 2036</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member" xlink:href="bbplc-20251231.xsd#bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member" xlink:to="lab_bbplc_A4.973FixedRateResettingSubordinatedCallableNotesDue2036Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_019c29a6-4798-7931-8ff7-50b0bfc6ba0d_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net finance income</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_019c29a6-4798-79ca-9c44-89414d88d026_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Interest costs or income on scheme liabilities or assets</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SubordinatedFloatingRateNotesDue2047Member_019c29a6-4930-70d1-bb7a-d6f54d1a78f3_terseLabel_en-US" xlink:label="lab_bbplc_SubordinatedFloatingRateNotesDue2047Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Floating Rate Subordinated Notes (USD 456m)</link:label>
    <link:label id="lab_bbplc_SubordinatedFloatingRateNotesDue2047Member_label_en-US" xlink:label="lab_bbplc_SubordinatedFloatingRateNotesDue2047Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Floating Rate Notes, Due 2047 [Member]</link:label>
    <link:label id="lab_bbplc_SubordinatedFloatingRateNotesDue2047Member_documentation_en-US" xlink:label="lab_bbplc_SubordinatedFloatingRateNotesDue2047Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Subordinated Notes, maturing in 2047 and denominated in United States of America, Dollars currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SubordinatedFloatingRateNotesDue2047Member" xlink:href="bbplc-20251231.xsd#bbplc_SubordinatedFloatingRateNotesDue2047Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SubordinatedFloatingRateNotesDue2047Member" xlink:to="lab_bbplc_SubordinatedFloatingRateNotesDue2047Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities_019c29a6-4930-71d4-b359-ec57470691cc_terseLabel_en-US" xlink:label="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers out of Level 3 of fair value hierarchy, liabilities</link:label>
    <link:label id="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities_label_en-US" xlink:label="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers out of Level 3 of fair value hierarchy, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities" xlink:to="lab_ifrs-full_TransfersOutOfLevel3OfFairValueHierarchyLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherResourcingCosts_019c29a6-4930-7358-b33a-e41e8b84ac5d_terseLabel_en-US" xlink:label="lab_bbplc_OtherResourcingCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbplc_OtherResourcingCosts_label_en-US" xlink:label="lab_bbplc_OtherResourcingCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Resourcing Costs</link:label>
    <link:label id="lab_bbplc_OtherResourcingCosts_documentation_en-US" xlink:label="lab_bbplc_OtherResourcingCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of costs relating to resourcing, classified as other.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherResourcingCosts" xlink:href="bbplc-20251231.xsd#bbplc_OtherResourcingCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherResourcingCosts" xlink:to="lab_bbplc_OtherResourcingCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReconciliationOfHedgingReserveAbstract_019c29a6-4828-763f-a2f8-8e4e56fd4459_terseLabel_en-US" xlink:label="lab_bbplc_ReconciliationOfHedgingReserveAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow hedging reserve</link:label>
    <link:label id="lab_bbplc_ReconciliationOfHedgingReserveAbstract_label_en-US" xlink:label="lab_bbplc_ReconciliationOfHedgingReserveAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation Of Hedging Reserve [Abstract]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfHedgingReserveAbstract_documentation_en-US" xlink:label="lab_bbplc_ReconciliationOfHedgingReserveAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reconciliation Of Hedging Reserve</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReconciliationOfHedgingReserveAbstract" xlink:href="bbplc-20251231.xsd#bbplc_ReconciliationOfHedgingReserveAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReconciliationOfHedgingReserveAbstract" xlink:to="lab_bbplc_ReconciliationOfHedgingReserveAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NominalAmountOfHedgingInstrument_019c29a6-4827-7593-a8c2-5786396f10ff_terseLabel_en-US" xlink:label="lab_ifrs-full_NominalAmountOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Nominal amount</link:label>
    <link:label id="lab_ifrs-full_NominalAmountOfHedgingInstrument_019c29a6-4827-7f83-bb65-31f98f4eaab0_verboseLabel_en-US" xlink:label="lab_ifrs-full_NominalAmountOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Notional amount</link:label>
    <link:label id="lab_ifrs-full_NominalAmountOfHedgingInstrument_label_en-US" xlink:label="lab_ifrs-full_NominalAmountOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nominal amount of hedging instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NominalAmountOfHedgingInstrument" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NominalAmountOfHedgingInstrument"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NominalAmountOfHedgingInstrument" xlink:to="lab_ifrs-full_NominalAmountOfHedgingInstrument" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory_019c29a6-49d1-76ae-a634-0956fac59b5b_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for securitisations</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for derecognition of financial instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForDerecognitionOfFinancialInstrumentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_WholesaleAndRetailDistributionAndLeisureMember_019c29a6-4828-7dda-afc3-92558aa5a8e8_terseLabel_en-US" xlink:label="lab_bbplc_WholesaleAndRetailDistributionAndLeisureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Wholesale and retail distribution and leisure</link:label>
    <link:label id="lab_bbplc_WholesaleAndRetailDistributionAndLeisureMember_label_en-US" xlink:label="lab_bbplc_WholesaleAndRetailDistributionAndLeisureMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Wholesale And Retail Distribution And Leisure [Member]</link:label>
    <link:label id="lab_bbplc_WholesaleAndRetailDistributionAndLeisureMember_documentation_en-US" xlink:label="lab_bbplc_WholesaleAndRetailDistributionAndLeisureMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the wholesale and retail distribution and leisure industry.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_WholesaleAndRetailDistributionAndLeisureMember" xlink:href="bbplc-20251231.xsd#bbplc_WholesaleAndRetailDistributionAndLeisureMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_WholesaleAndRetailDistributionAndLeisureMember" xlink:to="lab_bbplc_WholesaleAndRetailDistributionAndLeisureMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_VestingPeriodsAxis_019c3071-4b5c-7a43-8f53-2807ef6a3530_terseLabel_en-US" xlink:label="lab_bbplc_VestingPeriodsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting, Periods [Axis]</link:label>
    <link:label id="lab_bbplc_VestingPeriodsAxis_label_en-US" xlink:label="lab_bbplc_VestingPeriodsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting, Periods [Axis]</link:label>
    <link:label id="lab_bbplc_VestingPeriodsAxis_documentation_en-US" xlink:label="lab_bbplc_VestingPeriodsAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Vesting, Periods</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VestingPeriodsAxis" xlink:href="bbplc-20251231.xsd#bbplc_VestingPeriodsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_VestingPeriodsAxis" xlink:to="lab_bbplc_VestingPeriodsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForAuditServices_019c29a6-48ae-78cf-9713-4ca2efddf8d9_verboseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForAuditServices" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Audit and audit related fees</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForAuditServices_019c29a6-48ae-7557-8878-1bb2a75b6ee6_terseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForAuditServices" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Audit and audit related fees</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForAuditServices_label_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForAuditServices" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor's remuneration for audit services</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AuditorsRemunerationForAuditServices" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AuditorsRemunerationForAuditServices"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AuditorsRemunerationForAuditServices" xlink:to="lab_ifrs-full_AuditorsRemunerationForAuditServices" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_019c29a6-48ae-7d44-b0d6-621a8f00c14c_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member_019c29a6-48ae-7e77-8d73-8f9a15e5d882_terseLabel_en-US" xlink:label="lab_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.4% Reverse Dual Currency Subordinated Loan (JPY 15,000m)</link:label>
    <link:label id="lab_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member_label_en-US" xlink:label="lab_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">5.4% Reverse Dual Currency Subordinated Loan, Due 2027 [Member]</link:label>
    <link:label id="lab_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member_documentation_en-US" xlink:label="lab_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 5.4% Reverse Dual Currency Subordinated Loan (JPY 15,000m) maturing in 2027, denominated in Japan, Yen currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member" xlink:href="bbplc-20251231.xsd#bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member" xlink:to="lab_bbplc_A54ReverseDualCurrencySubordinatedLoanDue2027Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet_019c29a6-48ae-750f-842c-5bd519ed16f7_totalLabel_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Accumulated fair value hedge adjustment included in carrying amount, total</link:label>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet_label_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Fair Value Hedge Adjustment On Hedged Item Included In Carrying Amount, Net</link:label>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet_documentation_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The accumulated amount of fair value hedge adjustment on a hedged item that is included in the carrying amount of the hedged item, recognised in the statement of financial position as an asset less liabilities. [Refer: Hedged items [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet" xlink:href="bbplc-20251231.xsd#bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet" xlink:to="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_019c29a6-4798-72b1-976e-fa4532908b49_terseLabel_en-US" xlink:label="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_label_en-US" xlink:label="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:to="lab_ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember_019c29a6-4828-724c-ab85-e259f26e71ef_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inflation forwards</link:label>
    <link:label id="lab_ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current estimate of future cash outflows to be paid to fulfil obligation, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember" xlink:to="lab_ifrs-full_CurrentEstimateOfFutureCashOutflowsToBePaidToFulfilObligationMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementDomain_019c29a6-4931-7c55-bcee-0754b4fe7a46_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities measured at fair value and issued with inseparable third-party credit enhancement [domain]</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementDomain_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities measured at fair value and issued with inseparable third-party credit enhancement [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementDomain"/>
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    <link:label id="lab_bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock_019c29a6-4931-7808-a4ae-1602fe856f3a_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of components of income tax</link:label>
    <link:label id="lab_bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Components Of Income Tax [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of major components of income tax expense (income).</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfComponentsOfIncomeTaxTableTextBlock"/>
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    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_019c29a6-48ae-776b-8014-b730f20539d1_negatedLabel_en-US" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchase of property, plant and equipment and investment in intangibles</link:label>
    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_label_en-US" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets"/>
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    <link:label id="lab_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_019c29a6-4930-7a6b-92a5-d5d95b085a13_terseLabel_en-US" xlink:label="lab_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimate of contributions expected to be paid to plan for next annual reporting period</link:label>
    <link:label id="lab_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_label_en-US" xlink:label="lab_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Estimate of contributions expected to be paid to plan for next annual reporting period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:to="lab_ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfProvisionsExplanatory_019c29a6-4931-713b-be76-97d38c9eae3d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfProvisionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfProvisionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfProvisionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of provisions [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProvisionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfProvisionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfProvisionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfProvisionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTable_019c29a6-4828-7521-8f07-79022a32ef49_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets_019c29a6-4930-7bd9-aeb5-1191315f48ff_verboseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Mixed investment funds</link:label>
    <link:label id="lab_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment funds, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets" xlink:to="lab_ifrs-full_InvestmentFundsAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersOutOfTheFundAndContributionRefunds_019c29a6-48ae-71dc-94b0-83d79ae48eb7_terseLabel_en-US" xlink:label="lab_bbplc_TransfersOutOfTheFundAndContributionRefunds" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers out of the fund and contribution refunds</link:label>
    <link:label id="lab_bbplc_TransfersOutOfTheFundAndContributionRefunds_label_en-US" xlink:label="lab_bbplc_TransfersOutOfTheFundAndContributionRefunds" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers Out Of The Fund And Contribution Refunds</link:label>
    <link:label id="lab_bbplc_TransfersOutOfTheFundAndContributionRefunds_documentation_en-US" xlink:label="lab_bbplc_TransfersOutOfTheFundAndContributionRefunds" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Transfers out of the fund and contribution refunds pertaining to defined pension plans.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersOutOfTheFundAndContributionRefunds" xlink:href="bbplc-20251231.xsd#bbplc_TransfersOutOfTheFundAndContributionRefunds"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersOutOfTheFundAndContributionRefunds" xlink:to="lab_bbplc_TransfersOutOfTheFundAndContributionRefunds" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain_019c29a6-48ae-7aff-a58f-58b94f7a64fe_terseLabel_en-US" xlink:label="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Title and Position [Domain]</link:label>
    <link:label id="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain_label_en-US" xlink:label="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title and Position [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17_019c29a6-4930-737d-aae7-bb038ac8e9b3_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in equity for the year due to reasonable possible increase</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in equity due to reasonably possible increase in risk variable that arises from contracts within scope of IFRS 17</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInEquityDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17"/>
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    <link:label id="lab_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans_019c29a6-49d1-7cdf-a263-5ab8d4e34310_verboseLabel_en-US" xlink:label="lab_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefits</link:label>
    <link:label id="lab_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans_019c29a6-49d1-7e5d-8c68-231c999a9140_terseLabel_en-US" xlink:label="lab_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accruing benefits under defined benefit scheme</link:label>
    <link:label id="lab_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans_label_en-US" xlink:label="lab_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Post-employment benefit expense in profit or loss, defined benefit plans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:to="lab_ifrs-full_PostemploymentBenefitExpenseDefinedBenefitPlans" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgedItemsAxis_019c29a6-4798-717f-91c3-88aa72ac657c_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgedItemsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedged items [axis]</link:label>
    <link:label id="lab_ifrs-full_HedgedItemsAxis_label_en-US" xlink:label="lab_ifrs-full_HedgedItemsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedged items [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgedItemsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgedItemsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgedItemsAxis" xlink:to="lab_ifrs-full_HedgedItemsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CondensedStatementOfIncomeCaptionsLineItems_019c29a6-4828-73de-842c-a5a083a4db71_terseLabel_en-US" xlink:label="lab_srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statement of Income Captions [Line Items]</link:label>
    <link:label id="lab_srt_CondensedStatementOfIncomeCaptionsLineItems_label_en-US" xlink:label="lab_srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Statement of Income Captions [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CondensedStatementOfIncomeCaptionsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:to="lab_srt_CondensedStatementOfIncomeCaptionsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost_019c29a6-49d1-7e4c-b399-80e650bb196d_verboseLabel_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Debt securities in issue</link:label>
    <link:label id="lab_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost_019c29a6-49d1-7fe2-9eb4-92fe2c5b543b_negatedLabel_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Debt securities in issue</link:label>
    <link:label id="lab_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt instruments issued at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsIssuedAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost" xlink:to="lab_ifrs-full_DebtInstrumentsIssuedAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities_019c29a6-4827-7a7d-b618-4965833b6124_terseLabel_en-US" xlink:label="lab_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow reduced for early termination option expected to be exercised</link:label>
    <link:label id="lab_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities_label_en-US" xlink:label="lab_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease For Early Termination Option Expected To Be Exercised, Gross Lease Liabilities</link:label>
    <link:label id="lab_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities_documentation_en-US" xlink:label="lab_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Decrease For Early Termination Option Expected To Be Exercised, Gross Lease Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:to="lab_bbplc_DecreaseForEarlyTerminationOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NonAssetBackedLoansMember_019c29a6-49d1-78a9-89f1-85004c4c4345_terseLabel_en-US" xlink:label="lab_bbplc_NonAssetBackedLoansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans</link:label>
    <link:label id="lab_bbplc_NonAssetBackedLoansMember_label_en-US" xlink:label="lab_bbplc_NonAssetBackedLoansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Asset-Backed Loans [Member]</link:label>
    <link:label id="lab_bbplc_NonAssetBackedLoansMember_documentation_en-US" xlink:label="lab_bbplc_NonAssetBackedLoansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">"This member stands for fixed rate loans, primarily the ESHLA portfolio, which are valued using models that discount expected future cash flows."</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NonAssetBackedLoansMember" xlink:href="bbplc-20251231.xsd#bbplc_NonAssetBackedLoansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NonAssetBackedLoansMember" xlink:to="lab_bbplc_NonAssetBackedLoansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory_019c29a6-48ae-707c-8b6e-b6280e521d6d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Securitisations</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transfers of financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfTransfersOfFinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNewTransactionsAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised_019c29a6-4931-72e7-a9d3-8b383e6f9bfe_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNewTransactionsAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Difference between initial FV and transaction price to be recognised in profit or loss, additions</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNewTransactionsAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNewTransactionsAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through new transactions, aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNewTransactionsAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNewTransactionsAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised"/>
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    <link:label id="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember_019c29a6-4828-77ac-b6af-6626a7f58a5b_terseLabel_en-US" xlink:label="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer lists</link:label>
    <link:label id="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember_label_en-US" xlink:label="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer-related intangible assets [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CustomerrelatedIntangibleAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:to="lab_ifrs-full_CustomerrelatedIntangibleAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity_019c3419-8cef-70a6-9041-1aa7d6e8472e_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in equity for the year due to reasonable possible decrease, percentage</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Equity Due To Reasonably Possible Decrease In Risk Variable As A Percentage Of Total Equity</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Equity Due To Reasonably Possible Decrease In Risk Variable As A Percentage Of Total Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:to="lab_bbplc_IncreaseDecreaseInEquityDueToReasonablyPossibleDecreaseInRiskVariableAsAPercentageOfTotalEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain_019c29a6-49d1-7edc-8b95-7600fd71db44_terseLabel_en-US" xlink:label="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Characteristics of defined benefit plans [domain]</link:label>
    <link:label id="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain_label_en-US" xlink:label="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Characteristics of defined benefit plans [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain" xlink:to="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_019c29a6-48ae-7e46-b4d5-99911fdc7088_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities designated at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_019c29a6-48ae-726f-ba09-cdbde4b48314_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities designated at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member_019c29a6-49d1-7289-96ed-cd032a372d5c_terseLabel_en-US" xlink:label="lab_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.262% Fixed Rate Resetting Subordinated Callable Notes (EUR 1,250m)</link:label>
    <link:label id="lab_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member_label_en-US" xlink:label="lab_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">5.262% Fixed Rate Resetting Senior Callable Notes, Due 2034 [Member]</link:label>
    <link:label id="lab_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member_documentation_en-US" xlink:label="lab_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">5.262% Fixed Rate Resetting Senior Callable Notes, Due 2034</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member" xlink:href="bbplc-20251231.xsd#bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member" xlink:to="lab_bbplc_A5262FixedRateResettingSeniorCallableNotesDue2034Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AdditionsIntangibleAssetsAndGoodwill_019c29a6-4798-73ed-a211-4d69cbadff64_terseLabel_en-US" xlink:label="lab_bbplc_AdditionsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions</link:label>
    <link:label id="lab_bbplc_AdditionsIntangibleAssetsAndGoodwill_label_en-US" xlink:label="lab_bbplc_AdditionsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additions, Intangible Assets And Goodwill</link:label>
    <link:label id="lab_bbplc_AdditionsIntangibleAssetsAndGoodwill_documentation_en-US" xlink:label="lab_bbplc_AdditionsIntangibleAssetsAndGoodwill" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Additions, Intangible Assets And Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AdditionsIntangibleAssetsAndGoodwill" xlink:href="bbplc-20251231.xsd#bbplc_AdditionsIntangibleAssetsAndGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AdditionsIntangibleAssetsAndGoodwill" xlink:to="lab_bbplc_AdditionsIntangibleAssetsAndGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities_019c29a6-48ae-7e3c-9fcf-3bca614b0f54_terseLabel_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value adjustments</link:label>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities_label_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Fair Value Hedge Adjustment On Hedged Item Included In Carrying Amount, Assets (Liabilities)</link:label>
    <link:label id="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The accumulated amount of fair value hedge adjustment on a hedged item that is included in the carrying amount of the hedged item, recognised in the statement of financial position as an asset or liability.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities" xlink:to="lab_bbplc_AccumulatedFairValueHedgeAdjustmentOnHedgedItemIncludedInCarryingAmountAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentFundsMember_019c29a6-48ae-70d2-ac44-79c79bb9971a_verboseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentFundsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Mixed investment funds</link:label>
    <link:label id="lab_ifrs-full_InvestmentFundsMember_label_en-US" xlink:label="lab_ifrs-full_InvestmentFundsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment funds [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentFundsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentFundsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentFundsMember" xlink:to="lab_ifrs-full_InvestmentFundsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_019c29a6-4931-7e72-b7c4-03d41034b76b_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets_019c29a6-48ae-7e6c-98e4-4c8fab1c787a_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Credit impairment charges</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets_019c29a6-48ae-7e83-b46c-aced1577c297_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit impairment charges</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for impairment losses (reversal of impairment losses) recognised in profit or loss, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForImpairmentLossesReversalOfImpairmentLossesRecognisedInProfitOrLossFinancialAssets"/>
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    <link:label id="lab_bbplc_ShareValuePlanDeferredShareValuePlanMember_019c29a6-4798-7f63-987c-ac8831a3f5e5_terseLabel_en-US" xlink:label="lab_bbplc_ShareValuePlanDeferredShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Value Plan / Deferred Share Value Plan</link:label>
    <link:label id="lab_bbplc_ShareValuePlanDeferredShareValuePlanMember_label_en-US" xlink:label="lab_bbplc_ShareValuePlanDeferredShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Value Plan / Deferred Share Value Plan [Member]</link:label>
    <link:label id="lab_bbplc_ShareValuePlanDeferredShareValuePlanMember_documentation_en-US" xlink:label="lab_bbplc_ShareValuePlanDeferredShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the deferred share value plan, which was introduced in February 2017 in addition to the Share Value Plan, which was introduced in March 2010 and approved by shareholders (for Executive Director participation and use of new issue shares) at the AGM in April 2011.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ShareValuePlanDeferredShareValuePlanMember" xlink:href="bbplc-20251231.xsd#bbplc_ShareValuePlanDeferredShareValuePlanMember"/>
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    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems_019c29a6-4931-79e5-b824-0ac15358dd38_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ResourcingCosts_019c29a6-4930-75b2-91b9-dc7b1e4e5b07_totalLabel_en-US" xlink:label="lab_bbplc_ResourcingCosts" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total other resourcing costs</link:label>
    <link:label id="lab_bbplc_ResourcingCosts_label_en-US" xlink:label="lab_bbplc_ResourcingCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Resourcing Costs</link:label>
    <link:label id="lab_bbplc_ResourcingCosts_documentation_en-US" xlink:label="lab_bbplc_ResourcingCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of costs relating to outsourcing, redundancy and restructuring costs, and other temporary staff costs.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ResourcingCosts" xlink:href="bbplc-20251231.xsd#bbplc_ResourcingCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ResourcingCosts" xlink:to="lab_bbplc_ResourcingCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_EconomicUncertaintyAdjustmentsMember_019c29a6-4827-73d4-88b1-65d42038b52b_terseLabel_en-US" xlink:label="lab_bbplc_EconomicUncertaintyAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Economic uncertainty adjustments</link:label>
    <link:label id="lab_bbplc_EconomicUncertaintyAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_EconomicUncertaintyAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Economic Uncertainty Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_EconomicUncertaintyAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_EconomicUncertaintyAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Management has applied Covid-19 specific adjustments to modelled outputs to ensure the full potential impacts of stress are provided for. These adjustments address the temporary nature of ongoing government support, the uncertainty in relation to the timing of stress and the degree to which economic consensus has yet captured the range of economic uncertainty, particularly in the UK.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_EconomicUncertaintyAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_EconomicUncertaintyAdjustmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_EconomicUncertaintyAdjustmentsMember" xlink:to="lab_bbplc_EconomicUncertaintyAdjustmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember_019c29a6-49d1-7302-a547-31c9f3146990_terseLabel_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Life expectancy at 60 for current pensioners, males</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember_label_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Life Expectancy At 60 For Current Pensioners, Males [Member]</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember_documentation_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for life expectancy of males at 60 for current pensioners, used as actuarial assumptions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember" xlink:href="bbplc-20251231.xsd#bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember" xlink:to="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersMalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalDomain_019c29a6-49d1-7b8f-ab50-66079caa1701_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of share capital [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of share capital [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfShareCapitalDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfShareCapitalDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalDomain" xlink:to="lab_ifrs-full_ClassesOfShareCapitalDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueMember_019c29a6-48ae-7fdc-b8dc-16fa5be6fd07_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtFairValueMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtFairValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at fair value, class [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtFairValueMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtFairValueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtFairValueMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtFairValueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale_019c29a6-4798-77d0-9d64-e3ba1f7e0e70_terseLabel_en-US" xlink:label="lab_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale_label_en-US" xlink:label="lab_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Including Amounts Held For Sale</link:label>
    <link:label id="lab_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale_documentation_en-US" xlink:label="lab_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of liabilities that the entity does not separately disclose in the same statement or note, including assets including The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale" xlink:href="bbplc-20251231.xsd#bbplc_OtherLiabilitiesIncludingAmountsHeldForSale"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale" xlink:to="lab_bbplc_OtherLiabilitiesIncludingAmountsHeldForSale" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable_019c29a6-48ae-7a26-84c8-3e0bf21f12fc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transferred financial assets that are not derecognised in their entirety [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transferred financial assets that are not derecognised in their entirety [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsTransferredDuringPeriodWhichDoNotQualifyForDerecognitionTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets_019c29a6-48ae-7c88-9fda-6b1afd40a2b1_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated fair value adjustment on items no longer in a hedge relationship</link:label>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets_label_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated fair value hedge adjustment remaining in statement of financial position for hedged item that ceased to be adjusted for hedging gains and losses, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets" xlink:to="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue_019c29a6-4931-7735-8366-563dcd304f5d_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net gains from financial assets mandatorily at fair value</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on financial assets at fair value through profit or loss, mandatorily measured at fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue" xlink:to="lab_ifrs-full_GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis_019c29a6-4931-7b83-97c8-6c3b2fffd448_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:to="lab_ifrs-full_ClassesOfFinancialLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain_019c29a6-4931-745b-8f09-c5ba3496a42e_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:to="lab_ifrs-full_ClassesOfFinancialLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_019c29a6-4930-7cf4-9265-79cff69e5e63_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net (decrease)/increase in repurchase agreements and other similar secured borrowing</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in reverse repurchase agreements and cash collateral on securities borrowed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember_019c29a6-48ae-7782-a012-af66c6836ad7_terseLabel_en-US" xlink:label="lab_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Undrawn contractually committed facilities and guarantees</link:label>
    <link:label id="lab_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember_label_en-US" xlink:label="lab_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Undrawn Contractually Committed Facilities And Guarantees [Member]</link:label>
    <link:label id="lab_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember_documentation_en-US" xlink:label="lab_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for provisions are made if it is probable that a facility will be drawn and the resulting asset is expected to have a realisable value that is less than the amount advanced.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:href="bbplc-20251231.xsd#bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:to="lab_bbplc_UndrawnContractuallyCommittedFacilitiesAndGuaranteesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxRateEffectOfRevenuesExemptFromTaxation_019c29a6-4828-7bbf-80fc-e3d13faa8e73_negatedLabel_en-US" xlink:label="lab_ifrs-full_TaxRateEffectOfRevenuesExemptFromTaxation" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Non-taxable gains and income, percentage</link:label>
    <link:label id="lab_ifrs-full_TaxRateEffectOfRevenuesExemptFromTaxation_label_en-US" xlink:label="lab_ifrs-full_TaxRateEffectOfRevenuesExemptFromTaxation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax rate effect of revenues exempt from taxation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxRateEffectOfRevenuesExemptFromTaxation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxRateEffectOfRevenuesExemptFromTaxation"/>
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    <link:label id="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019c29a6-49d1-7fbb-ad87-ad5c8a1b130f_negatedLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Acquisition of business</link:label>
    <link:label id="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_019c29a6-49d1-7818-b74c-2809dd94e791_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net increase in investment in subsidiaries</link:label>
    <link:label id="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities"/>
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    <link:label id="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities_019c29a6-4930-7f4e-87d3-7f1da0ba84f9_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total gains or losses recognised in OCI, liabilities</link:label>
    <link:label id="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities_label_en-US" xlink:label="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in other comprehensive income including exchange differences, fair value measurement, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities" xlink:to="lab_ifrs-full_GainsLossesRecognisedInOtherComprehensiveIncomeFairValueMeasurementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage_019c29a6-48ae-757d-b677-b3f50e4bf9ee_terseLabel_en-US" xlink:label="lab_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets measured at fair value through other comprehensive income, percentage</link:label>
    <link:label id="lab_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage_label_en-US" xlink:label="lab_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets Measured At Fair Value Through Other Comprehensive Income, Percentage</link:label>
    <link:label id="lab_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage_documentation_en-US" xlink:label="lab_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount (expressed as a percentage) of financial assets that are measured at fair value through other comprehensive income. A financial asset shall be measured at fair value through other comprehensive income if both of the following conditions are met: (a) the financial asset is held within a business model whose objective is achieved by both collecting contractual cash flows and selling financial assets and (b) the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. [Refer: At fair value [member]; Financial assets]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage" xlink:href="bbplc-20251231.xsd#bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage" xlink:to="lab_bbplc_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomePercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006_019c29a6-48ae-7e07-b07b-5dd5b35ebf52_terseLabel_en-US" xlink:label="lab_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts paid under LTIPs</link:label>
    <link:label id="lab_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006_label_en-US" xlink:label="lab_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts Paid Under LTIPs Companies Act 2006</link:label>
    <link:label id="lab_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006_documentation_en-US" xlink:label="lab_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount paid under LTIPs for directors is presented in accordance with the companies act 2006.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006" xlink:href="bbplc-20251231.xsd#bbplc_AmountsPaidUnderLTIPsCompaniesAct2006"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006" xlink:to="lab_bbplc_AmountsPaidUnderLTIPsCompaniesAct2006" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PlanAssetsMember_019c29a6-4931-7f63-8ad6-4dc4be477d46_terseLabel_en-US" xlink:label="lab_ifrs-full_PlanAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of plan assets</link:label>
    <link:label id="lab_ifrs-full_PlanAssetsMember_label_en-US" xlink:label="lab_ifrs-full_PlanAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan assets [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PlanAssetsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PlanAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PlanAssetsMember" xlink:to="lab_ifrs-full_PlanAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CalledUpShareCapitalAndSharePremium_019c29a6-49d1-7f76-9389-ce42862e1602_terseLabel_en-US" xlink:label="lab_bbplc_CalledUpShareCapitalAndSharePremium" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Called up share capital and share premium</link:label>
    <link:label id="lab_bbplc_CalledUpShareCapitalAndSharePremium_label_en-US" xlink:label="lab_bbplc_CalledUpShareCapitalAndSharePremium" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Called Up Share Capital And Share Premium</link:label>
    <link:label id="lab_bbplc_CalledUpShareCapitalAndSharePremium_documentation_en-US" xlink:label="lab_bbplc_CalledUpShareCapitalAndSharePremium" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of equity interest of an entity without share capital that the entity does not separately disclose in the same statement or note.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CalledUpShareCapitalAndSharePremium" xlink:href="bbplc-20251231.xsd#bbplc_CalledUpShareCapitalAndSharePremium"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CalledUpShareCapitalAndSharePremium" xlink:to="lab_bbplc_CalledUpShareCapitalAndSharePremium" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LeaseLiabilities_019c29a6-49d1-72ae-9f59-51f320ab3a74_periodStartLabel_en-US" xlink:label="lab_ifrs-full_LeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities, beginning balance</link:label>
    <link:label id="lab_ifrs-full_LeaseLiabilities_019c29a6-49d1-769f-9cb8-eeaf6f14793e_periodEndLabel_en-US" xlink:label="lab_ifrs-full_LeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Lease liabilities, ending balance</link:label>
    <link:label id="lab_ifrs-full_LeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_LeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LeaseLiabilities" xlink:to="lab_ifrs-full_LeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysBankUkPlcMember_019c29a6-48ae-7f72-b9c3-51141e612c51_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysBankUkPlcMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank UK PLC</link:label>
    <link:label id="lab_bbplc_BarclaysBankUkPlcMember_label_en-US" xlink:label="lab_bbplc_BarclaysBankUkPlcMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Bank UK PLC [member]</link:label>
    <link:label id="lab_bbplc_BarclaysBankUkPlcMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysBankUkPlcMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A direct subsidiary of ultimate parent, Barclays PLC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysBankUkPlcMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysBankUkPlcMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysBankUkPlcMember" xlink:to="lab_bbplc_BarclaysBankUkPlcMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied_019c29a6-49d1-7386-98f9-d6e3ddff9086_negatedLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Balances remaining in cash flow hedging reserve for which hedge accounting is no longer applied</link:label>
    <link:label id="lab_ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied_label_en-US" xlink:label="lab_ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of cash flow hedges, hedging relationships for which hedge accounting is no longer applied</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:to="lab_ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IssuanceCostsOfConvertibleInstruments_019c29a6-4828-7d21-b4f9-c0dc4ecbb2df_terseLabel_en-US" xlink:label="lab_bbplc_IssuanceCostsOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issuance costs</link:label>
    <link:label id="lab_bbplc_IssuanceCostsOfConvertibleInstruments_label_en-US" xlink:label="lab_bbplc_IssuanceCostsOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issuance Costs Of Convertible Instruments</link:label>
    <link:label id="lab_bbplc_IssuanceCostsOfConvertibleInstruments_documentation_en-US" xlink:label="lab_bbplc_IssuanceCostsOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Issuance Costs Of Convertible Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IssuanceCostsOfConvertibleInstruments" xlink:href="bbplc-20251231.xsd#bbplc_IssuanceCostsOfConvertibleInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IssuanceCostsOfConvertibleInstruments" xlink:to="lab_bbplc_IssuanceCostsOfConvertibleInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory_019c29a6-4828-7eb5-bca4-9ebac16538c4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis of valuations using unobservable inputs, assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSensitivityAnalysisOfFairValueMeasurementToChangesInUnobservableInputsAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_MinimumMember_019c29a6-49d1-76ab-b3c8-13a5086e9cf2_terseLabel_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum</link:label>
    <link:label id="lab_srt_MinimumMember_label_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MinimumMember" xlink:to="lab_srt_MinimumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage_019c29a6-48ae-7410-9f5f-0b7d20f88a61_terseLabel_en-US" xlink:label="lab_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt securities at amortised cost, percentage</link:label>
    <link:label id="lab_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage_label_en-US" xlink:label="lab_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instruments Held At Amortised Cost, Percentage</link:label>
    <link:label id="lab_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage_documentation_en-US" xlink:label="lab_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debt Instruments Held At Amortised Cost, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage" xlink:href="bbplc-20251231.xsd#bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage" xlink:to="lab_bbplc_DebtInstrumentsHeldAtAmortisedCostPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember_019c29a6-4828-7235-bf15-8fdd93fc6762_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total trading portfolio assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember_019c29a6-4828-787a-bc02-568e3f1a4830_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net gains on financial instruments held for trading</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember_019c29a6-4828-79d8-99a0-cd1a0cdab450_netLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, classified as held for trading, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementAssets_019c29a6-49d1-76cf-9b36-b248ebcb01ba_terseLabel_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchases, fair value measurement, assets</link:label>
    <link:label id="lab_ifrs-full_PurchasesFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Purchases, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PurchasesFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:to="lab_ifrs-full_PurchasesFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember_019c29a6-4828-74b4-817b-12c0867d3022_terseLabel_en-US" xlink:label="lab_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Rate Swap and Credit Default Swap US Civil Actions</link:label>
    <link:label id="lab_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember_label_en-US" xlink:label="lab_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Rate Swap And Credit Default Swap US Civil Actions [Member]</link:label>
    <link:label id="lab_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember_documentation_en-US" xlink:label="lab_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Rate Swap And Credit Default Swap US Civil Actions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember" xlink:href="bbplc-20251231.xsd#bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember" xlink:to="lab_bbplc_InterestRateSwapAndCreditDefaultSwapUSCivilActionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HedgedAssetsMember_019c29a6-49d1-7363-a652-f2f6cbea0194_terseLabel_en-US" xlink:label="lab_bbplc_HedgedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedged assets</link:label>
    <link:label id="lab_bbplc_HedgedAssetsMember_label_en-US" xlink:label="lab_bbplc_HedgedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedged Assets [Member]</link:label>
    <link:label id="lab_bbplc_HedgedAssetsMember_documentation_en-US" xlink:label="lab_bbplc_HedgedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The hedged item, recognised as an asset.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HedgedAssetsMember" xlink:href="bbplc-20251231.xsd#bbplc_HedgedAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HedgedAssetsMember" xlink:to="lab_bbplc_HedgedAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TierTwoCapitalInstrumentsMember_019c29a6-48ae-7cad-8ca3-e7a15c1eced6_terseLabel_en-US" xlink:label="lab_bbplc_TierTwoCapitalInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total regulatory capital</link:label>
    <link:label id="lab_bbplc_TierTwoCapitalInstrumentsMember_label_en-US" xlink:label="lab_bbplc_TierTwoCapitalInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier Two Capital Instruments [member]</link:label>
    <link:label id="lab_bbplc_TierTwoCapitalInstrumentsMember_documentation_en-US" xlink:label="lab_bbplc_TierTwoCapitalInstrumentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the tier 2 (T2) captial instruments of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TierTwoCapitalInstrumentsMember" xlink:href="bbplc-20251231.xsd#bbplc_TierTwoCapitalInstrumentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TierTwoCapitalInstrumentsMember" xlink:to="lab_bbplc_TierTwoCapitalInstrumentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities_019c29a6-49d1-7f40-82ec-507af550ba0b_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial instruments</link:label>
    <link:label id="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial instruments subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:to="lab_ifrs-full_FinancialInstrumentsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome_019c29a6-49d1-7cc0-86f0-b051857e738f_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income tax relating to exchange differences on translation of foreign operations included in other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" xlink:to="lab_ifrs-full_IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember_019c29a6-4828-789d-a761-c0190f464bc7_terseLabel_en-US" xlink:label="lab_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL from economic uncertainty adjustments</link:label>
    <link:label id="lab_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ECL From Post-Model Management Adjustments, Economic Uncertainty Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ECL From Post-Model Management Adjustments, Economic Uncertainty Adjustments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember" xlink:to="lab_bbplc_ECLFromPostModelManagementAdjustmentsEconomicUncertaintyAdjustmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied_019c29a6-4931-76da-8d2f-02dec7f5b197_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balances remaining in currency translation reserve for which hedge accounting is no longer applied</link:label>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied_label_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of exchange differences on translation, hedging relationships for which hedge accounting is no longer applied</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:to="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAxis_019c29a6-48ae-74b5-8522-302e3326c2f8_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial assets [axis]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:to="lab_ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset_019c29a6-4798-7d28-ad6e-884837ab7a44_negatedLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, deferred tax liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory_019c29a6-48ae-76c7-b764-541d202f0b2b_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for net fee and commission income</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for fee and commission income and expense [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFeeAndCommissionIncomeAndExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AmericanAirlinesPortfolioMember_019c29a6-4798-75c9-b2fa-01039eac4be4_terseLabel_en-US" xlink:label="lab_bbplc_AmericanAirlinesPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">American Airlines Portfolio</link:label>
    <link:label id="lab_bbplc_AmericanAirlinesPortfolioMember_label_en-US" xlink:label="lab_bbplc_AmericanAirlinesPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">American Airlines Portfolio [Member]</link:label>
    <link:label id="lab_bbplc_AmericanAirlinesPortfolioMember_documentation_en-US" xlink:label="lab_bbplc_AmericanAirlinesPortfolioMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">American Airlines Portfolio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AmericanAirlinesPortfolioMember" xlink:href="bbplc-20251231.xsd#bbplc_AmericanAirlinesPortfolioMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AmericanAirlinesPortfolioMember" xlink:to="lab_bbplc_AmericanAirlinesPortfolioMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfFinancialLiabilitiesDomain_019c29a6-4931-7691-86ef-e6874a01a8ca_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of financial liabilities [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfFinancialLiabilitiesDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfFinancialLiabilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of financial liabilities [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfFinancialLiabilitiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfFinancialLiabilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfFinancialLiabilitiesDomain" xlink:to="lab_ifrs-full_TypesOfFinancialLiabilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProductsAndServicesAxis_019c29a6-49d1-7498-ac44-1da33411c67e_terseLabel_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Products and services [axis]</link:label>
    <link:label id="lab_ifrs-full_ProductsAndServicesAxis_label_en-US" xlink:label="lab_ifrs-full_ProductsAndServicesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Products and services [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProductsAndServicesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProductsAndServicesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProductsAndServicesAxis" xlink:to="lab_ifrs-full_ProductsAndServicesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member_019c29a6-48ae-7d82-964e-b5a95f13954f_terseLabel_en-US" xlink:label="lab_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">1.125% Fixed Rate Resetting Subordinated Callable Notes (EUR 1,000m)</link:label>
    <link:label id="lab_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member_label_en-US" xlink:label="lab_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">1.125% Fixed Rate Resetting Subordinated Callable Notes, Due 2031 [Member]</link:label>
    <link:label id="lab_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member_documentation_en-US" xlink:label="lab_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">1.125% Fixed Rate Resetting Subordinated Callable Notes, Due 2031</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member" xlink:href="bbplc-20251231.xsd#bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member" xlink:to="lab_bbplc_A1125FixedRateResettingSubordinatedCallableNotesDue2031Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilities_019c29a6-4828-7290-8209-72f6bd308882_totalLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total financial liabilities</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilities" xlink:to="lab_ifrs-full_FinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_019c29a6-48ae-7796-bacc-864c7d2c0430_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Taxation</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_019c29a6-48ae-706e-827a-8c9ceccd1064_totalLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Tax charge</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets_019c29a6-4931-737f-b426-ef6b5a3b5c81_terseLabel_en-US" xlink:label="lab_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedge funds</link:label>
    <link:label id="lab_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedge Funds, Amount Contributed To Fair Value Of Plan Assets</link:label>
    <link:label id="lab_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets_documentation_en-US" xlink:label="lab_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Hedge Funds, Amount Contributed To Fair Value Of Plan Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets" xlink:href="bbplc-20251231.xsd#bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets" xlink:to="lab_bbplc_HedgeFundsAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfReservesWithinEquityTableTextBlock_019c29a6-4931-717c-9e79-e98872d8a3af_verboseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfReservesWithinEquityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity</link:label>
    <link:label id="lab_bbplc_DisclosureOfReservesWithinEquityTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfReservesWithinEquityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Reserves Within Equity [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfReservesWithinEquityTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfReservesWithinEquityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of other reserves within equity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfReservesWithinEquityTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfReservesWithinEquityTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfReservesWithinEquityTableTextBlock" xlink:to="lab_bbplc_DisclosureOfReservesWithinEquityTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TwelvemonthExpectedCreditLossesMember_019c29a6-49d1-7814-af0e-dd7312e80ca1_terseLabel_en-US" xlink:label="lab_ifrs-full_TwelvemonthExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stage 1</link:label>
    <link:label id="lab_ifrs-full_TwelvemonthExpectedCreditLossesMember_label_en-US" xlink:label="lab_ifrs-full_TwelvemonthExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">12-month expected credit losses [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TwelvemonthExpectedCreditLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TwelvemonthExpectedCreditLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TwelvemonthExpectedCreditLossesMember" xlink:to="lab_ifrs-full_TwelvemonthExpectedCreditLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentTransitionReport_019c29a6-49d1-7b23-99c2-8180f184408f_terseLabel_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Transition Report</link:label>
    <link:label id="lab_dei_DocumentTransitionReport_label_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Transition Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentTransitionReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentTransitionReport" xlink:to="lab_dei_DocumentTransitionReport" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ECLFromPostModelManagementAdjustmentsMember_019c29a6-4798-7527-b3a9-b650a3a5e40b_terseLabel_en-US" xlink:label="lab_bbplc_ECLFromPostModelManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL from post model management adjustments</link:label>
    <link:label id="lab_bbplc_ECLFromPostModelManagementAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_ECLFromPostModelManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ECL From Post-Model Management Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_ECLFromPostModelManagementAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_ECLFromPostModelManagementAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ECL From Post-Model Management Adjustments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ECLFromPostModelManagementAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_ECLFromPostModelManagementAdjustmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ECLFromPostModelManagementAdjustmentsMember" xlink:to="lab_bbplc_ECLFromPostModelManagementAdjustmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfNetInterestIncomeTableTextBlock_019c29a6-49d1-7bb2-b56a-406a3058f7f8_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfNetInterestIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of net interest income</link:label>
    <link:label id="lab_bbplc_DisclosureOfNetInterestIncomeTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfNetInterestIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Net Interest Income [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfNetInterestIncomeTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfNetInterestIncomeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of net interest income. [Refer: Interest income (expense)]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfNetInterestIncomeTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfNetInterestIncomeTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfNetInterestIncomeTableTextBlock" xlink:to="lab_bbplc_DisclosureOfNetInterestIncomeTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TradedDerivativesMember_019c29a6-48ae-75a6-9313-c67d29a0633b_terseLabel_en-US" xlink:label="lab_bbplc_TradedDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Traded derivatives</link:label>
    <link:label id="lab_bbplc_TradedDerivativesMember_label_en-US" xlink:label="lab_bbplc_TradedDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Traded Derivatives [Member]</link:label>
    <link:label id="lab_bbplc_TradedDerivativesMember_documentation_en-US" xlink:label="lab_bbplc_TradedDerivativesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the traded derivatives within structured entities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TradedDerivativesMember" xlink:href="bbplc-20251231.xsd#bbplc_TradedDerivativesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TradedDerivativesMember" xlink:to="lab_bbplc_TradedDerivativesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndBankBalancesAtCentralBanks_019c29a6-4931-7d99-b76c-1fc850b50c89_terseLabel_en-US" xlink:label="lab_ifrs-full_CashAndBankBalancesAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and balances at central banks</link:label>
    <link:label id="lab_ifrs-full_CashAndBankBalancesAtCentralBanks_label_en-US" xlink:label="lab_ifrs-full_CashAndBankBalancesAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and bank balances at central banks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndBankBalancesAtCentralBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndBankBalancesAtCentralBanks"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndBankBalancesAtCentralBanks" xlink:to="lab_ifrs-full_CashAndBankBalancesAtCentralBanks" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract_019c29a6-4931-71e6-aa74-7d395feb8b7c_terseLabel_en-US" xlink:label="lab_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, assets (liabilities)</link:label>
    <link:label id="lab_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract_label_en-US" xlink:label="lab_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation Of Changes In Fair Value Measurement, Assets (Liabilities) [Abstract]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract_documentation_en-US" xlink:label="lab_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reconciliation Of Changes In Fair Value Measurement, Assets (Liabilities)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract" xlink:href="bbplc-20251231.xsd#bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract" xlink:to="lab_bbplc_ReconciliationOfChangesInFairValueMeasurementAssetsLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfInterimDividendsPaid_019c29a6-4931-703a-84dc-e255d54eb645_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfInterimDividendsPaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of interim dividends paid</link:label>
    <link:label id="lab_bbplc_NumberOfInterimDividendsPaid_label_en-US" xlink:label="lab_bbplc_NumberOfInterimDividendsPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Interim Dividends Paid</link:label>
    <link:label id="lab_bbplc_NumberOfInterimDividendsPaid_documentation_en-US" xlink:label="lab_bbplc_NumberOfInterimDividendsPaid" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Interim Dividends Paid</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfInterimDividendsPaid" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfInterimDividendsPaid"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfInterimDividendsPaid" xlink:to="lab_bbplc_NumberOfInterimDividendsPaid" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-49d1-777c-9142-952c1eb2be80_terseLabel_en-US" xlink:label="lab_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">5.400% Perpetual Subordinated Contingent Convertible Securities (SGD600m)</link:label>
    <link:label id="lab_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">5.400% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">5.400% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A5.400PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear_019c29a6-48ae-7fd6-bf64-0926178249aa_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends, interim</link:label>
    <link:label id="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear_label_en-US" xlink:label="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends recognised as distributions to owners of parent, relating to current year</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear" xlink:to="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToCurrentYear" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DownsideOneMember_019c29a6-4930-7eff-b258-4ed67933f2b5_terseLabel_en-US" xlink:label="lab_bbplc_DownsideOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Downside 1</link:label>
    <link:label id="lab_bbplc_DownsideOneMember_label_en-US" xlink:label="lab_bbplc_DownsideOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Downside 1 [member]</link:label>
    <link:label id="lab_bbplc_DownsideOneMember_documentation_en-US" xlink:label="lab_bbplc_DownsideOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The downside 1 scenario. The adverse scenarios are calibrated to a similar severity to internal stress tests, whilst also considering IFRS 9 specific sensitivities and non-linearity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DownsideOneMember" xlink:href="bbplc-20251231.xsd#bbplc_DownsideOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DownsideOneMember" xlink:to="lab_bbplc_DownsideOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaturityAxis_019c29a6-4798-70ff-8c5d-e54ce64c294a_terseLabel_en-US" xlink:label="lab_ifrs-full_MaturityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturity [axis]</link:label>
    <link:label id="lab_ifrs-full_MaturityAxis_label_en-US" xlink:label="lab_ifrs-full_MaturityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaturityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityAxis" xlink:to="lab_ifrs-full_MaturityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_country_GB_019c29a6-4828-76b4-a28c-5688944305de_verboseLabel_en-US" xlink:label="lab_country_GB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">UK</link:label>
    <link:label id="lab_country_GB_019c29a6-4828-7ddf-8df1-1f49149b2b20_terseLabel_en-US" xlink:label="lab_country_GB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">United Kingdom</link:label>
    <link:label id="lab_country_GB_label_en-US" xlink:label="lab_country_GB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED KINGDOM</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_GB" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_GB"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_GB" xlink:to="lab_country_GB" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember_019c29a6-4930-7c57-94a2-5008cf2b9d1c_terseLabel_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets held for sale</link:label>
    <link:label id="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember_label_en-US" xlink:label="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-current assets or disposal groups classified as held for sale [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember" xlink:to="lab_ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory_019c29a6-4931-7a4d-b395-41fd5ed6b85f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading portfolio</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial instruments held for trading [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsHeldForTradingExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments_019c29a6-4798-7fe9-8ee6-8a3973b11ccc_terseLabel_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible impairments and losses on divestments</link:label>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments_label_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Non-Deductible Impairments And Losses On Divestments</link:label>
    <link:label id="lab_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments_documentation_en-US" xlink:label="lab_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Effect Non-Deductible Impairments And Losses On Divestments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:href="bbplc-20251231.xsd#bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:to="lab_bbplc_TaxEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Goodwill_019c29a6-4828-7674-b165-fe3e7284f61c_terseLabel_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_Goodwill_label_en-US" xlink:label="lab_ifrs-full_Goodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Goodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Goodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Goodwill" xlink:to="lab_ifrs-full_Goodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis_019c29a6-4930-71cf-8afa-19cd79e86681_terseLabel_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Associates [axis]</link:label>
    <link:label id="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis_label_en-US" xlink:label="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Associates [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SignificantInvestmentsInAssociatesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:to="lab_ifrs-full_SignificantInvestmentsInAssociatesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BanksMember_019c29a6-4828-7abb-851e-62f8ddd9d957_verboseLabel_en-US" xlink:label="lab_bbplc_BanksMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Banks</link:label>
    <link:label id="lab_bbplc_BanksMember_label_en-US" xlink:label="lab_bbplc_BanksMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Banks [member]</link:label>
    <link:label id="lab_bbplc_BanksMember_documentation_en-US" xlink:label="lab_bbplc_BanksMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the bank counterparty.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BanksMember" xlink:href="bbplc-20251231.xsd#bbplc_BanksMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BanksMember" xlink:to="lab_bbplc_BanksMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_019c29a6-48ae-72f0-a583-23a4b31e05df_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows_019c29a6-48ae-77f0-bf60-3a7ce276ea82_terseLabel_en-US" xlink:label="lab_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt securities in issue, undiscounted</link:label>
    <link:label id="lab_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows_label_en-US" xlink:label="lab_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities In Issue, Undiscounted Cash Flows</link:label>
    <link:label id="lab_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows_documentation_en-US" xlink:label="lab_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to debt instruments issued.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows" xlink:href="bbplc-20251231.xsd#bbplc_DebtSecuritiesInIssueUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows" xlink:to="lab_bbplc_DebtSecuritiesInIssueUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements_019c29a6-4798-733e-91b7-c18be380cc97_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Curtailments or Settlements</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements_019c29a6-4798-7862-b40c-6a236e8d617f_negatedTerseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Curtailments or settlements</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Net Defined Benefit Liability (Assets) Resulting From Curtailments Or Settlements</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Net Defined Benefit Liability (Assets) Resulting From Curtailments Or Settlements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements" xlink:to="lab_bbplc_IncreaseDecreaseInNetDefinedBenefitLiabilityAssetsResultingFromCurtailmentsOrSettlements" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember_019c29a6-4828-79b9-ad42-f74d9191365c_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value through other comprehensive income reserve</link:label>
    <link:label id="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember_label_en-US" xlink:label="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of gains and losses on financial assets measured at fair value through other comprehensive income [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:to="lab_ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FeeAndCommissionExpense_019c29a6-4827-7863-b44b-7707d47c81e6_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Fee and commission expense</link:label>
    <link:label id="lab_ifrs-full_FeeAndCommissionExpense_label_en-US" xlink:label="lab_ifrs-full_FeeAndCommissionExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fee and commission expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FeeAndCommissionExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FeeAndCommissionExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FeeAndCommissionExpense" xlink:to="lab_ifrs-full_FeeAndCommissionExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpectedReimbursementOtherProvisions_019c29a6-49d1-7f3e-a612-4b8241bed88f_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedReimbursementOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected reimbursement</link:label>
    <link:label id="lab_ifrs-full_ExpectedReimbursementOtherProvisions_label_en-US" xlink:label="lab_ifrs-full_ExpectedReimbursementOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected reimbursement, other provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedReimbursementOtherProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpectedReimbursementOtherProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpectedReimbursementOtherProvisions" xlink:to="lab_ifrs-full_ExpectedReimbursementOtherProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RiskExposuresAxis_019c29a6-4931-70ac-bd25-7064b77cb0fe_terseLabel_en-US" xlink:label="lab_ifrs-full_RiskExposuresAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Risk variables [axis]</link:label>
    <link:label id="lab_ifrs-full_RiskExposuresAxis_label_en-US" xlink:label="lab_ifrs-full_RiskExposuresAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk variables [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RiskExposuresAxis" xlink:to="lab_ifrs-full_RiskExposuresAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeStatementAbstract_019c29a6-4828-72a2-976c-f7b01921c751_terseLabel_en-US" xlink:label="lab_ifrs-full_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit or loss [abstract]</link:label>
    <link:label id="lab_ifrs-full_IncomeStatementAbstract_label_en-US" xlink:label="lab_ifrs-full_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeStatementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeStatementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeStatementAbstract" xlink:to="lab_ifrs-full_IncomeStatementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets_019c29a6-49d1-7e0f-a2fc-9520376d119f_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through transfers, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability_019c29a6-48ae-7b48-9149-2f1b0992ce1f_terseLabel_en-US" xlink:label="lab_bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inputs, assumptions and estimation techniques used for ECL, probability</link:label>
    <link:label id="lab_bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability_label_en-US" xlink:label="lab_bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inputs, Assumptions And Estimation Techniques Used To Determine Expected Credit Losses, Probability</link:label>
    <link:label id="lab_bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability_documentation_en-US" xlink:label="lab_bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Inputs, Assumptions And Estimation Techniques Used To Determine Expected Credit Losses, Probability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability" xlink:href="bbplc-20251231.xsd#bbplc_InputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability"/>
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    <link:label id="lab_bbplc_OnBalanceSheetPercentageAbstract_019c29a6-49d1-7c23-ad07-67f957ab3440_terseLabel_en-US" xlink:label="lab_bbplc_OnBalanceSheetPercentageAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">On-balance sheet, percentage</link:label>
    <link:label id="lab_bbplc_OnBalanceSheetPercentageAbstract_label_en-US" xlink:label="lab_bbplc_OnBalanceSheetPercentageAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">On-Balance Sheet, Percentage [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OnBalanceSheetPercentageAbstract" xlink:href="bbplc-20251231.xsd#bbplc_OnBalanceSheetPercentageAbstract"/>
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    <link:label id="lab_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember_019c29a6-48ae-73fb-bda7-08d8c6dda21b_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL collectively assessed</link:label>
    <link:label id="lab_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember_019c29a6-48ae-7f1b-8cda-2a5fc5c5daba_verboseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total weighted model ECL</link:label>
    <link:label id="lab_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember_label_en-US" xlink:label="lab_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected credit losses collectively assessed [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember" xlink:to="lab_ifrs-full_ExpectedCreditLossesCollectivelyAssessedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory_019c29a6-48ae-7761-805f-305f583bf000_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of significant unobservable inputs, assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of significant unobservable inputs used in fair value measurement of assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory"/>
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    <link:label id="lab_bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage_019c29a6-49d1-7802-91a6-e5b33712bda5_terseLabel_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of Management adjustments to total impairment allowance</link:label>
    <link:label id="lab_bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage_label_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment Allowance Including Loan Commitments And Financial Guarantee Contracts, Percentage</link:label>
    <link:label id="lab_bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage_documentation_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount total impairment allowance, including off-balance sheet loan commitments and financial guarantee contracts, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage" xlink:href="bbplc-20251231.xsd#bbplc_ImpairmentAllowanceIncludingLoanCommitmentsAndFinancialGuaranteeContractsPercentage"/>
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    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_019c29a6-4930-764c-a4db-6f9d3cb7f551_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of share-based payment arrangements [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:to="lab_ifrs-full_TypesOfSharebasedPaymentArrangementsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract_019c29a6-4798-7914-9abd-5ee21aedc83f_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts subject to enforceable master netting arrangement or similar agreement not set off against financial liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract" xlink:to="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued_019c29a6-4798-7fb8-8c04-3ad855a6f984_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase/(decrease) in debt securities in issue</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued_019c29a6-4798-76a8-83fb-5c069cd9a470_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net increase/(decrease) in debt securities in issue</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in debt instruments issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDebtInstrumentsIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfEquityAxis_019c29a6-4930-71bf-8ec0-6c07d417a40b_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of equity [axis]</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfEquityAxis_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfEquityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of equity [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfEquityAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfEquityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfEquityAxis" xlink:to="lab_ifrs-full_ComponentsOfEquityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherReservesAndOtherShareholdersEquityMember_019c29a6-4931-7995-bcd7-f02384ffe6e7_terseLabel_en-US" xlink:label="lab_bbplc_OtherReservesAndOtherShareholdersEquityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other reserves</link:label>
    <link:label id="lab_bbplc_OtherReservesAndOtherShareholdersEquityMember_label_en-US" xlink:label="lab_bbplc_OtherReservesAndOtherShareholdersEquityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Reserves And Other Shareholders Equity [Member]</link:label>
    <link:label id="lab_bbplc_OtherReservesAndOtherShareholdersEquityMember_documentation_en-US" xlink:label="lab_bbplc_OtherReservesAndOtherShareholdersEquityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a component of equity representing other reserves within equity and other shareholders equity, not including retained earnings.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherReservesAndOtherShareholdersEquityMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherReservesAndOtherShareholdersEquityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherReservesAndOtherShareholdersEquityMember" xlink:to="lab_bbplc_OtherReservesAndOtherShareholdersEquityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems_019c29a6-48ae-7274-bc53-f66f49ba62d5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_019c29a6-48ae-7113-b1b8-d9c28b5ba8f2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SubordinatedLiabilitiesAbstract_019c29a6-4930-7437-b78e-e0633dd27347_terseLabel_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities [abstract]</link:label>
    <link:label id="lab_ifrs-full_SubordinatedLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubordinatedLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubordinatedLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SubordinatedLiabilitiesAbstract" xlink:to="lab_ifrs-full_SubordinatedLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherInterestsMember_019c29a6-48ae-7a95-9097-bae555aeff19_terseLabel_en-US" xlink:label="lab_bbplc_OtherInterestsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other interests</link:label>
    <link:label id="lab_bbplc_OtherInterestsMember_019c29a6-48ae-732d-ba44-ecd1871b4088_verboseLabel_en-US" xlink:label="lab_bbplc_OtherInterestsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_bbplc_OtherInterestsMember_label_en-US" xlink:label="lab_bbplc_OtherInterestsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Interests [Member]</link:label>
    <link:label id="lab_bbplc_OtherInterestsMember_documentation_en-US" xlink:label="lab_bbplc_OtherInterestsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other interests.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherInterestsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherInterestsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherInterestsMember" xlink:to="lab_bbplc_OtherInterestsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_019c29a6-48ae-719f-8dca-d407f8dae23d_totalLabel_en-US" xlink:label="lab_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_label_en-US" xlink:label="lab_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Financial Assets And Repurchase Agreements And Cash Collateral On Securities Borrowed</link:label>
    <link:label id="lab_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed_documentation_en-US" xlink:label="lab_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivative Financial Assets And Repurchase Agreements And Cash Collateral On Securities Borrowed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:href="bbplc-20251231.xsd#bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:to="lab_bbplc_DerivativeFinancialAssetsAndRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfCollateralExplanatory_019c29a6-48ae-7696-9aa9-3fc20b7126c5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfCollateralExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets pledged, collateral received and assets transferred</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfCollateralExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfCollateralExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of collateral [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCollateralExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCollateralExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfCollateralExplanatory" xlink:to="lab_ifrs-full_DisclosureOfCollateralExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_USDFloatingRateNotesMember_019c29a6-4930-74f7-afd8-1b5447e42203_terseLabel_en-US" xlink:label="lab_bbplc_USDFloatingRateNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">USD Floating Rate Notes</link:label>
    <link:label id="lab_bbplc_USDFloatingRateNotesMember_label_en-US" xlink:label="lab_bbplc_USDFloatingRateNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">USD Floating Rate Notes [Member]</link:label>
    <link:label id="lab_bbplc_USDFloatingRateNotesMember_documentation_en-US" xlink:label="lab_bbplc_USDFloatingRateNotesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">USD Floating Rate Notes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_USDFloatingRateNotesMember" xlink:href="bbplc-20251231.xsd#bbplc_USDFloatingRateNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_USDFloatingRateNotesMember" xlink:to="lab_bbplc_USDFloatingRateNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_019c29a6-4930-7891-86a5-2a3dddeda59c_terseLabel_en-US" xlink:label="lab_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remeasurement loss - experience</link:label>
    <link:label id="lab_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from actuarial gains (losses) arising from experience adjustments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashAndBankBalancesAtCentralBanksMember_019c29a6-4828-78b5-bc3c-c75553ebb2e3_terseLabel_en-US" xlink:label="lab_bbplc_CashAndBankBalancesAtCentralBanksMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and balances at central banks</link:label>
    <link:label id="lab_bbplc_CashAndBankBalancesAtCentralBanksMember_label_en-US" xlink:label="lab_bbplc_CashAndBankBalancesAtCentralBanksMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash And Bank Balances At Central Banks [Member]</link:label>
    <link:label id="lab_bbplc_CashAndBankBalancesAtCentralBanksMember_documentation_en-US" xlink:label="lab_bbplc_CashAndBankBalancesAtCentralBanksMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for cash and bank balances held at central banks.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashAndBankBalancesAtCentralBanksMember" xlink:href="bbplc-20251231.xsd#bbplc_CashAndBankBalancesAtCentralBanksMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashAndBankBalancesAtCentralBanksMember" xlink:to="lab_bbplc_CashAndBankBalancesAtCentralBanksMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems_019c29a6-48ae-7a28-b5c8-c0bb9d136481_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments_019c29a6-4931-7e91-aa56-53a259467143_terseLabel_en-US" xlink:label="lab_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest held in significant investments</link:label>
    <link:label id="lab_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments_label_en-US" xlink:label="lab_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion Of Ownership Interest Held In Significant Investments</link:label>
    <link:label id="lab_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments_documentation_en-US" xlink:label="lab_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Proportion Of Ownership Interest Held In Significant Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments" xlink:href="bbplc-20251231.xsd#bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments" xlink:to="lab_bbplc_ProportionOfOwnershipInterestHeldInSignificantInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesDomain_019c29a6-4828-70ce-90d5-471ab916b0bf_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of related parties [domain]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfRelatedPartiesDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of related parties [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfRelatedPartiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:to="lab_ifrs-full_CategoriesOfRelatedPartiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DeferredShareValuePlanShareValuePlanMember_019c29a6-4828-7494-a498-fb95b78aa3f9_terseLabel_en-US" xlink:label="lab_bbplc_DeferredShareValuePlanShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Value Plan and Deferred Share Value Plan</link:label>
    <link:label id="lab_bbplc_DeferredShareValuePlanShareValuePlanMember_019c29a6-4828-7e21-bcd8-4a6043d74c67_verboseLabel_en-US" xlink:label="lab_bbplc_DeferredShareValuePlanShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">SVP and DSVP</link:label>
    <link:label id="lab_bbplc_DeferredShareValuePlanShareValuePlanMember_label_en-US" xlink:label="lab_bbplc_DeferredShareValuePlanShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Share Value Plan / Share Value Plan [Member]</link:label>
    <link:label id="lab_bbplc_DeferredShareValuePlanShareValuePlanMember_documentation_en-US" xlink:label="lab_bbplc_DeferredShareValuePlanShareValuePlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the deferred share value plan, which was introduced in February 2017 in addition to the Share Value Plan, which was introduced in March 2010 and approved by shareholders (for Executive Director participation and use of new issue shares) at the AGM in April 2011.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DeferredShareValuePlanShareValuePlanMember" xlink:href="bbplc-20251231.xsd#bbplc_DeferredShareValuePlanShareValuePlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DeferredShareValuePlanShareValuePlanMember" xlink:to="lab_bbplc_DeferredShareValuePlanShareValuePlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_VestingPeriodOneMember_019c3071-4b5c-7743-a593-73cc499be888_terseLabel_en-US" xlink:label="lab_bbplc_VestingPeriodOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period one</link:label>
    <link:label id="lab_bbplc_VestingPeriodOneMember_label_en-US" xlink:label="lab_bbplc_VestingPeriodOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting Period One [Member]</link:label>
    <link:label id="lab_bbplc_VestingPeriodOneMember_documentation_en-US" xlink:label="lab_bbplc_VestingPeriodOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Vesting Period One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VestingPeriodOneMember" xlink:href="bbplc-20251231.xsd#bbplc_VestingPeriodOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_VestingPeriodOneMember" xlink:to="lab_bbplc_VestingPeriodOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidationItemsDomain_019c29a6-4828-7dcf-908b-1e51e03e868e_terseLabel_en-US" xlink:label="lab_srt_ConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidation Items [Domain]</link:label>
    <link:label id="lab_srt_ConsolidationItemsDomain_label_en-US" xlink:label="lab_srt_ConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidation Items [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ConsolidationItemsDomain" xlink:to="lab_srt_ConsolidationItemsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-49d1-7d96-b95d-a5866694daf1_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exchange and other movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through net exchange differences, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AuditorLocation_019c29a6-4798-77e4-8fd0-e29628286f59_terseLabel_en-US" xlink:label="lab_dei_AuditorLocation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor Location</link:label>
    <link:label id="lab_dei_AuditorLocation_label_en-US" xlink:label="lab_dei_AuditorLocation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Location</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorLocation" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorLocation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorLocation" xlink:to="lab_dei_AuditorLocation" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_StructuralCurrencyExposureOtherEquityInstruments_019c29a6-4798-7749-bf9c-da4301b19138_negatedLabel_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureOtherEquityInstruments" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other Equity instruments</link:label>
    <link:label id="lab_bbplc_StructuralCurrencyExposureOtherEquityInstruments_label_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Structural Currency Exposure, Other Equity Instruments</link:label>
    <link:label id="lab_bbplc_StructuralCurrencyExposureOtherEquityInstruments_documentation_en-US" xlink:label="lab_bbplc_StructuralCurrencyExposureOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Structural Currency Exposure, Other Equity Instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StructuralCurrencyExposureOtherEquityInstruments" xlink:href="bbplc-20251231.xsd#bbplc_StructuralCurrencyExposureOtherEquityInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StructuralCurrencyExposureOtherEquityInstruments" xlink:to="lab_bbplc_StructuralCurrencyExposureOtherEquityInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SatisfactoryBBPlusToBMember_019c29a6-4931-7749-a425-75e63790b6b5_terseLabel_en-US" xlink:label="lab_bbplc_SatisfactoryBBPlusToBMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Satisfactory</link:label>
    <link:label id="lab_bbplc_SatisfactoryBBPlusToBMember_label_en-US" xlink:label="lab_bbplc_SatisfactoryBBPlusToBMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Satisfactory BB Plus To B [Member]</link:label>
    <link:label id="lab_bbplc_SatisfactoryBBPlusToBMember_documentation_en-US" xlink:label="lab_bbplc_SatisfactoryBBPlusToBMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the satisfactory internal credit grade. While there is a high likelihood that the asset will be recovered and therefore, of no cause for concern to the Group, the asset may not be collateralised, or may relate to unsecured retail facilities. At the lower end of this grade there are customers that are being more carefully monitored, for example, corporate customers which are indicating some evidence of deterioration, mortgages with a high loan to value, and unsecured retail loans operating outside normal product guidelines.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SatisfactoryBBPlusToBMember" xlink:href="bbplc-20251231.xsd#bbplc_SatisfactoryBBPlusToBMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SatisfactoryBBPlusToBMember" xlink:to="lab_bbplc_SatisfactoryBBPlusToBMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PreferenceSharesAdjustmentToInterestRateBasis_019c29a6-48ae-7ef6-87ec-47da15aad496_terseLabel_en-US" xlink:label="lab_bbplc_PreferenceSharesAdjustmentToInterestRateBasis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment to interest rate basis</link:label>
    <link:label id="lab_bbplc_PreferenceSharesAdjustmentToInterestRateBasis_label_en-US" xlink:label="lab_bbplc_PreferenceSharesAdjustmentToInterestRateBasis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preference Shares, Adjustment To Interest Rate Basis</link:label>
    <link:label id="lab_bbplc_PreferenceSharesAdjustmentToInterestRateBasis_documentation_en-US" xlink:label="lab_bbplc_PreferenceSharesAdjustmentToInterestRateBasis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preference Shares, Adjustment To Interest Rate Basis</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PreferenceSharesAdjustmentToInterestRateBasis" xlink:href="bbplc-20251231.xsd#bbplc_PreferenceSharesAdjustmentToInterestRateBasis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PreferenceSharesAdjustmentToInterestRateBasis" xlink:to="lab_bbplc_PreferenceSharesAdjustmentToInterestRateBasis" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CondensedBalanceSheetStatementTable_019c29a6-4798-7a89-baf1-9a3d56a43f94_terseLabel_en-US" xlink:label="lab_srt_CondensedBalanceSheetStatementTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statement [Table]</link:label>
    <link:label id="lab_srt_CondensedBalanceSheetStatementTable_label_en-US" xlink:label="lab_srt_CondensedBalanceSheetStatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statement [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedBalanceSheetStatementTable" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CondensedBalanceSheetStatementTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CondensedBalanceSheetStatementTable" xlink:to="lab_srt_CondensedBalanceSheetStatementTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading_019c29a6-4828-79de-bde3-efddd80d99d3_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase/(decrease) in trading portfolio liabilities</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading_019c29a6-4828-71ca-bf2a-7430bb386ed9_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net decrease in trading portfolio liabilities</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in financial liabilities held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInFinancialLiabilitiesHeldForTrading" xlink:type="arc" order="1"/>
    <link:label id="lab_country_LU_019c29a6-4828-7207-8ba7-dc8351caf8b2_terseLabel_en-US" xlink:label="lab_country_LU" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Luxembourg</link:label>
    <link:label id="lab_country_LU_label_en-US" xlink:label="lab_country_LU" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">LUXEMBOURG</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_LU" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_LU"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_LU" xlink:to="lab_country_LU" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable_019c29a6-4931-7888-8054-2799c68ba675_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xlink:to="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory_019c29a6-4798-7d32-a057-1d0e59aa91ee_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for net trading income</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for trading income and expense [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForTradingIncomeAndExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DeferredMembersAfterworkMember_019c29a6-4798-7246-b8e6-c6ef99d8d25c_terseLabel_en-US" xlink:label="lab_bbplc_DeferredMembersAfterworkMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred members (Afterwork)</link:label>
    <link:label id="lab_bbplc_DeferredMembersAfterworkMember_label_en-US" xlink:label="lab_bbplc_DeferredMembersAfterworkMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Members, Afterwork [Member]</link:label>
    <link:label id="lab_bbplc_DeferredMembersAfterworkMember_documentation_en-US" xlink:label="lab_bbplc_DeferredMembersAfterworkMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred Members, Afterwork</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DeferredMembersAfterworkMember" xlink:href="bbplc-20251231.xsd#bbplc_DeferredMembersAfterworkMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DeferredMembersAfterworkMember" xlink:to="lab_bbplc_DeferredMembersAfterworkMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativeCreditValuationAdjustmentsMember_019c29a6-48ae-7227-806b-002cc9a1a0b2_terseLabel_en-US" xlink:label="lab_bbplc_DerivativeCreditValuationAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative credit valuation adjustments</link:label>
    <link:label id="lab_bbplc_DerivativeCreditValuationAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_DerivativeCreditValuationAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Credit Valuation Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_DerivativeCreditValuationAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_DerivativeCreditValuationAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for derivative credit valuation adjustment for the impact on fair value of counterparty credit risk.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativeCreditValuationAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_DerivativeCreditValuationAdjustmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativeCreditValuationAdjustmentsMember" xlink:to="lab_bbplc_DerivativeCreditValuationAdjustmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LaterThanSixYearsMember_019c29a6-49d1-7525-bb33-9b98e4a81f1b_terseLabel_en-US" xlink:label="lab_bbplc_LaterThanSixYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2031 and later</link:label>
    <link:label id="lab_bbplc_LaterThanSixYearsMember_label_en-US" xlink:label="lab_bbplc_LaterThanSixYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later Than Six Years [member]</link:label>
    <link:label id="lab_bbplc_LaterThanSixYearsMember_documentation_en-US" xlink:label="lab_bbplc_LaterThanSixYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a time band of later than six years.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LaterThanSixYearsMember" xlink:href="bbplc-20251231.xsd#bbplc_LaterThanSixYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LaterThanSixYearsMember" xlink:to="lab_bbplc_LaterThanSixYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherAdjustmentsMember_019c29a6-4828-7a6a-a894-a82e8ef17ca2_terseLabel_en-US" xlink:label="lab_bbplc_OtherAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other adjustments</link:label>
    <link:label id="lab_bbplc_OtherAdjustmentsMember_label_en-US" xlink:label="lab_bbplc_OtherAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Adjustments [Member]</link:label>
    <link:label id="lab_bbplc_OtherAdjustmentsMember_documentation_en-US" xlink:label="lab_bbplc_OtherAdjustmentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ECL correction made to models appearing overly sensitive to the Federal Tax Receipts variable, in addition to a number of updates informed by business as usual model monitoring.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherAdjustmentsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherAdjustmentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherAdjustmentsMember" xlink:to="lab_bbplc_OtherAdjustmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-48ae-7d28-a4a2-de247ac840d5_verboseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net drawdowns, repayments, net re-measurement and movement due to exposure and risk parameter changes</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Drawdowns, Repayments, Risk Parameter Changes And Other Movements, Exposure To Credit Risk On Loan Commitments And Financial Guarantee Contracts</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase (decrease) in financial assets resulting from drawdowns, repayments, changes in models or risk parameters, and other movements, including the effect of moving between Stages 2 and 3 on expected credit losses.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:to="lab_bbplc_IncreaseDecreaseInDrawdownsRepaymentsRiskParameterChangesAndOtherMovementsExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradingEquitySecuritiesMember_019c29a6-4931-715b-b1d7-b7572fab0f9d_terseLabel_en-US" xlink:label="lab_ifrs-full_TradingEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity securities</link:label>
    <link:label id="lab_ifrs-full_TradingEquitySecuritiesMember_label_en-US" xlink:label="lab_ifrs-full_TradingEquitySecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading equity securities [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradingEquitySecuritiesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradingEquitySecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradingEquitySecuritiesMember" xlink:to="lab_ifrs-full_TradingEquitySecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AggregateEmolumentsCompaniesAct2006_019c29a6-4828-7fae-b1bf-c549bbb042c6_terseLabel_en-US" xlink:label="lab_bbplc_AggregateEmolumentsCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate emoluments</link:label>
    <link:label id="lab_bbplc_AggregateEmolumentsCompaniesAct2006_label_en-US" xlink:label="lab_bbplc_AggregateEmolumentsCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Aggregate Emoluments Companies Act 2006</link:label>
    <link:label id="lab_bbplc_AggregateEmolumentsCompaniesAct2006_documentation_en-US" xlink:label="lab_bbplc_AggregateEmolumentsCompaniesAct2006" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of emoluments for directors is presented in accordance with the companies act 2006.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AggregateEmolumentsCompaniesAct2006" xlink:href="bbplc-20251231.xsd#bbplc_AggregateEmolumentsCompaniesAct2006"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AggregateEmolumentsCompaniesAct2006" xlink:to="lab_bbplc_AggregateEmolumentsCompaniesAct2006" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment_019c29a6-4931-7d4a-ad90-d9c3c44194f2_terseLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based payments</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation, share-based payment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem_019c29a6-48ae-7860-948c-07ecd97d7ed5_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in foreign currency net investments</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Foreign Currency Net Investments, Hedged Item</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The increase (decrease) in foreign currency net investments, hedged item.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem" xlink:to="lab_bbplc_IncreaseDecreaseInForeignCurrencyNetInvestmentsHedgedItem" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_019c29a6-48ae-7e8b-a06c-286cc4d571df_terseLabel_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_label_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityWellKnownSeasonedIssuer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityWellKnownSeasonedIssuer" xlink:to="lab_dei_EntityWellKnownSeasonedIssuer" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory_019c29a6-4930-792c-86f0-b3b415de295a_terseLabel_en-US" xlink:label="lab_ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of collateral held as security for assets</link:label>
    <link:label id="lab_ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Information about collateral held as security and other credit enhancements for credit-impaired financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_InformationAboutCollateralHeldAsSecurityAndOtherCreditEnhancementsForCreditimpairedFinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherFinancialAssets_019c29a6-48ae-7dbd-90df-3c01b3fa069c_verboseLabel_en-US" xlink:label="lab_ifrs-full_OtherFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_ifrs-full_OtherFinancialAssets_019c29a6-48ae-7130-8eb5-c6ddeba9c62b_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets</link:label>
    <link:label id="lab_ifrs-full_OtherFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_OtherFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherFinancialAssets" xlink:to="lab_ifrs-full_OtherFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DefinedBenefitPlansDomain_019c29a6-49d1-78ef-8345-040f6934a273_terseLabel_en-US" xlink:label="lab_ifrs-full_DefinedBenefitPlansDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined benefit plans [domain]</link:label>
    <link:label id="lab_ifrs-full_DefinedBenefitPlansDomain_label_en-US" xlink:label="lab_ifrs-full_DefinedBenefitPlansDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined benefit plans [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DefinedBenefitPlansDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DefinedBenefitPlansDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DefinedBenefitPlansDomain" xlink:to="lab_ifrs-full_DefinedBenefitPlansDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_019c29a6-4931-7953-a34c-a70027c69626_terseLabel_en-US" xlink:label="lab_ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible expenses, percentage</link:label>
    <link:label id="lab_ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_label_en-US" xlink:label="lab_ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax rate effect of expense not deductible in determining taxable profit (tax loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:to="lab_ifrs-full_TaxRateEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CountryOfDomicileMember_019c29a6-49d1-7542-be60-7665e0b44ea1_verboseLabel_en-US" xlink:label="lab_ifrs-full_CountryOfDomicileMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">United Kingdom</link:label>
    <link:label id="lab_ifrs-full_CountryOfDomicileMember_019c29a6-49d1-7110-a0be-967ea501b507_terseLabel_en-US" xlink:label="lab_ifrs-full_CountryOfDomicileMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">UK</link:label>
    <link:label id="lab_ifrs-full_CountryOfDomicileMember_label_en-US" xlink:label="lab_ifrs-full_CountryOfDomicileMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Country of domicile [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CountryOfDomicileMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CountryOfDomicileMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CountryOfDomicileMember" xlink:to="lab_ifrs-full_CountryOfDomicileMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComputerEquipmentMember_019c29a6-49d1-75bd-bd87-77aa043371fc_terseLabel_en-US" xlink:label="lab_ifrs-full_ComputerEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Computers and similar equipment</link:label>
    <link:label id="lab_ifrs-full_ComputerEquipmentMember_label_en-US" xlink:label="lab_ifrs-full_ComputerEquipmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Computer equipment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComputerEquipmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComputerEquipmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComputerEquipmentMember" xlink:to="lab_ifrs-full_ComputerEquipmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InfrastructureCosts_019c29a6-4828-7538-b3ac-df2ee3d0dbc0_negatedLabel_en-US" xlink:label="lab_bbplc_InfrastructureCosts" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Infrastructure costs</link:label>
    <link:label id="lab_bbplc_InfrastructureCosts_019c29a6-4828-7791-8e4c-f44c528d8283_totalLabel_en-US" xlink:label="lab_bbplc_InfrastructureCosts" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total infrastructure costs</link:label>
    <link:label id="lab_bbplc_InfrastructureCosts_label_en-US" xlink:label="lab_bbplc_InfrastructureCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Infrastructure Costs</link:label>
    <link:label id="lab_bbplc_InfrastructureCosts_documentation_en-US" xlink:label="lab_bbplc_InfrastructureCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of infrastructure costs incurred by the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InfrastructureCosts" xlink:href="bbplc-20251231.xsd#bbplc_InfrastructureCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InfrastructureCosts" xlink:to="lab_bbplc_InfrastructureCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_country_KR_019c29a6-48ae-78e7-915a-e46e7e278458_terseLabel_en-US" xlink:label="lab_country_KR" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Korea, Republic of</link:label>
    <link:label id="lab_country_KR_label_en-US" xlink:label="lab_country_KR" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">KOREA, REPUBLIC OF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_KR" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_KR"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_KR" xlink:to="lab_country_KR" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019c29a6-4828-77fe-a5aa-a614a1a3e593_totalLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase/(decrease) in cash and cash equivalents</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in cash and cash equivalents after effect of exchange rate changes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:to="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract_019c29a6-4828-7234-a7b1-f58ca0e346db_terseLabel_en-US" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compensation costs</link:label>
    <link:label id="lab_ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term employee benefits expense [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract" xlink:to="lab_ifrs-full_ShorttermEmployeeBenefitsExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems_019c29a6-4828-7626-bd02-a387bc2db50d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of information for cash-generating units [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information for cash-generating units [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:to="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract_019c29a6-4828-7fd8-aafa-5e494702b1f8_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax charge</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax expense (income) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxExpenseIncomeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:to="lab_ifrs-full_DeferredTaxExpenseIncomeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets_019c29a6-4931-7f63-81d4-d7cd6710e69a_negatedTerseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">ECL charge on assets held for sale</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets_label_en-US" xlink:label="lab_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Assets Held For Sale Movements, Financial Assets</link:label>
    <link:label id="lab_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) Through Assets Held For Sale Movements, Financial Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets" xlink:to="lab_bbplc_IncreaseDecreaseThroughAssetsHeldForSaleMovementsFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SubordinatedLiabilities_019c29a6-4798-7c99-8517-07bbd9c7ab52_terseLabel_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_SubordinatedLiabilities_019c29a6-4798-726e-bde3-0c0d5d912657_verboseLabel_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Subordinated debt</link:label>
    <link:label id="lab_ifrs-full_SubordinatedLiabilities_019c29a6-4798-74bf-90c8-97e6e674e79b_negatedLabel_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_SubordinatedLiabilities_019c29a6-4798-7cde-9afe-03a32edb2761_periodStartLabel_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities, opening balance</link:label>
    <link:label id="lab_ifrs-full_SubordinatedLiabilities_019c29a6-4798-7282-bfe2-eecd5c8ad717_periodEndLabel_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Subordinated liabilities, closing balance</link:label>
    <link:label id="lab_ifrs-full_SubordinatedLiabilities_label_en-US" xlink:label="lab_ifrs-full_SubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubordinatedLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubordinatedLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SubordinatedLiabilities" xlink:to="lab_ifrs-full_SubordinatedLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfConvertibleInstrumentsIssued_019c29a6-4828-756c-9fcb-ae045debe37b_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfConvertibleInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of convertible instruments issued</link:label>
    <link:label id="lab_bbplc_NumberOfConvertibleInstrumentsIssued_label_en-US" xlink:label="lab_bbplc_NumberOfConvertibleInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Convertible Instruments Issued</link:label>
    <link:label id="lab_bbplc_NumberOfConvertibleInstrumentsIssued_documentation_en-US" xlink:label="lab_bbplc_NumberOfConvertibleInstrumentsIssued" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of convertible instruments issued during the period.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfConvertibleInstrumentsIssued" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfConvertibleInstrumentsIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfConvertibleInstrumentsIssued" xlink:to="lab_bbplc_NumberOfConvertibleInstrumentsIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysUkMember_019c29a6-4798-7e58-814a-f28496136cb2_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysUkMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">UK Banking Business</link:label>
    <link:label id="lab_bbplc_BarclaysUkMember_label_en-US" xlink:label="lab_bbplc_BarclaysUkMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays UK [member]</link:label>
    <link:label id="lab_bbplc_BarclaysUkMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysUkMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays UK comprises our UK Personal Banking, UK Business Banking and Barclaycard Consumer UK businesses. These businesses are carried on by our UK ring-fenced bank (Barclays Bank UK PLC) and certain other entities within the Group.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysUkMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysUkMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysUkMember" xlink:to="lab_bbplc_BarclaysUkMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashAndCashEquivalentsNettingMember_019c29a6-4828-75cc-9b86-61169d6ae69c_terseLabel_en-US" xlink:label="lab_bbplc_CashAndCashEquivalentsNettingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and liquid assets</link:label>
    <link:label id="lab_bbplc_CashAndCashEquivalentsNettingMember_label_en-US" xlink:label="lab_bbplc_CashAndCashEquivalentsNettingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents, Netting [Member]</link:label>
    <link:label id="lab_bbplc_CashAndCashEquivalentsNettingMember_documentation_en-US" xlink:label="lab_bbplc_CashAndCashEquivalentsNettingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the cash and cash equivalents.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashAndCashEquivalentsNettingMember" xlink:href="bbplc-20251231.xsd#bbplc_CashAndCashEquivalentsNettingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashAndCashEquivalentsNettingMember" xlink:to="lab_bbplc_CashAndCashEquivalentsNettingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember_019c29a6-4798-7ca4-ab80-2bbc06fb2683_terseLabel_en-US" xlink:label="lab_ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Post-employment medical defined benefit plans</link:label>
    <link:label id="lab_ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember_label_en-US" xlink:label="lab_ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Post-employment medical defined benefit plans [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember" xlink:to="lab_ifrs-full_PostemploymentMedicalDefinedBenefitPlansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward_019c29a6-4930-7cca-8d4f-9d7c2e12c1eb_terseLabel_en-US" xlink:label="lab_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of share price of options and award plans [Roll Forward]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward_label_en-US" xlink:label="lab_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation Of Share Price Of Options And Award Plans [Roll Forward]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward_documentation_en-US" xlink:label="lab_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reconciliation Of Share Price Of Options And Award Plans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward" xlink:href="bbplc-20251231.xsd#bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward" xlink:to="lab_bbplc_ReconciliationOfSharePriceOfOptionsAndAwardPlansRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_INR_019c29a6-4798-7d5b-bf85-dffef4fdbffd_terseLabel_en-US" xlink:label="lab_currency_INR" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">INR</link:label>
    <link:label id="lab_currency_INR_label_en-US" xlink:label="lab_currency_INR" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">India, Rupees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_INR" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_INR"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_INR" xlink:to="lab_currency_INR" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FairValueHedgesMember_019c29a6-4931-760b-9a7a-119ce26edf8d_terseLabel_en-US" xlink:label="lab_ifrs-full_FairValueHedgesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value hedges</link:label>
    <link:label id="lab_ifrs-full_FairValueHedgesMember_label_en-US" xlink:label="lab_ifrs-full_FairValueHedgesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value hedges [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FairValueHedgesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FairValueHedgesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FairValueHedgesMember" xlink:to="lab_ifrs-full_FairValueHedgesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SpreadRiskMember_019c29a6-4931-71ed-8ef7-3531380ba98a_terseLabel_en-US" xlink:label="lab_bbplc_SpreadRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Spread risk</link:label>
    <link:label id="lab_bbplc_SpreadRiskMember_label_en-US" xlink:label="lab_bbplc_SpreadRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Spread Risk [Member]</link:label>
    <link:label id="lab_bbplc_SpreadRiskMember_documentation_en-US" xlink:label="lab_bbplc_SpreadRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the spread risk factor.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SpreadRiskMember" xlink:href="bbplc-20251231.xsd#bbplc_SpreadRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SpreadRiskMember" xlink:to="lab_bbplc_SpreadRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_019c29a6-4930-73df-9c32-8787829ad14c_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCurrentReportingStatus_019c29a6-49d1-7d6c-8073-8df8db0be797_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:label id="lab_dei_EntityCurrentReportingStatus_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCurrentReportingStatus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus" xlink:to="lab_dei_EntityCurrentReportingStatus" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember_019c29a6-48ae-7869-9ee2-cf600b7b2fd4_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Over one year but not more than three years</link:label>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than one year and not later than three years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:to="lab_ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDeferredTaxesExplanatory_019c29a6-4827-7f60-9ab8-53b8d1e092ef_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of deferred tax assets and liabilities</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory"/>
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    <link:label id="lab_bbplc_PercentageOfLongevityRiskForCurrentPensionersReinsured_019c29a6-48ae-7e3b-90ba-afa546d9a63a_terseLabel_en-US" xlink:label="lab_bbplc_PercentageOfLongevityRiskForCurrentPensionersReinsured" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of longevity risk for current pensioners reinsured</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract_019c29a6-4798-7070-83b4-b9fcdd11ed41_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [abstract]</link:label>
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    <link:label id="lab_dei_CurrentFiscalYearEndDate_019c29a6-4931-76fe-9fb5-5b6ce96e898b_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
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    <link:label id="lab_ifrs-full_DividendsPaidOrdinarySharesPerShare_019c29a6-49d1-7ffb-af00-ff9c2ddc183e_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsPaidOrdinarySharesPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid on ordinary shares (in GBP per share)</link:label>
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    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability_019c29a6-48ae-70fa-98be-bbe3a6e7bc6f_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Own credit reserve</link:label>
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    <link:label id="lab_bbplc_DisclosureOfShortTermEmployeeBenefitsExplanatoryTextBlock_019c29a6-48ae-7614-84df-f48059fe47db_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfShortTermEmployeeBenefitsExplanatoryTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Staff costs</link:label>
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    <link:label id="lab_country_IT_019c29a6-4828-7311-ba7a-51d8c7371f70_terseLabel_en-US" xlink:label="lab_country_IT" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Italy</link:label>
    <link:label id="lab_country_IT_label_en-US" xlink:label="lab_country_IT" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ITALY</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_IT" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IT"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_IT" xlink:to="lab_country_IT" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashCollateralNettedMember_019c29a6-48ae-7a40-9b63-c2b0b3e852a8_terseLabel_en-US" xlink:label="lab_bbplc_CashCollateralNettedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral netted</link:label>
    <link:label id="lab_bbplc_CashCollateralNettedMember_label_en-US" xlink:label="lab_bbplc_CashCollateralNettedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Collateral Netted [Member]</link:label>
    <link:label id="lab_bbplc_CashCollateralNettedMember_documentation_en-US" xlink:label="lab_bbplc_CashCollateralNettedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for cash collateral netted.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashCollateralNettedMember" xlink:href="bbplc-20251231.xsd#bbplc_CashCollateralNettedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashCollateralNettedMember" xlink:to="lab_bbplc_CashCollateralNettedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CondensedBalanceSheetStatementsCaptionsLineItems_019c29a6-48ae-7d4a-950d-a92a5a4b5f61_terseLabel_en-US" xlink:label="lab_srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statements, Captions [Line Items]</link:label>
    <link:label id="lab_srt_CondensedBalanceSheetStatementsCaptionsLineItems_label_en-US" xlink:label="lab_srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statements, Captions [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CondensedBalanceSheetStatementsCaptionsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:to="lab_srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets_019c29a6-4930-717a-a38c-7c7e9bb4f769_terseLabel_en-US" xlink:label="lab_ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in fair value during the year ended</link:label>
    <link:label id="lab_ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in fair value of financial assets designated as measured at fair value through profit or loss, attributable to changes in credit risk of financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:to="lab_ifrs-full_ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssets_019c29a6-48ae-79e9-b877-46abb1e5e335_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019c29a6-48ae-7f10-864d-231e3fe9713b_periodStartLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Opening/Beginning balance</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019c29a6-48ae-7683-be62-4383d7061600_periodEndLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Closing/Ending balance</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019c29a6-48ae-78ed-bfb6-8813cbad3823_negatedLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019c29a6-48ae-7c76-88d9-763d8b04c4e4_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019c29a6-48ae-7187-9b19-e1e44a4b520b_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Credit exposure</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_019c29a6-48ae-707e-a404-81da3d1450e3_totalLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total financial assets</link:label>
    <link:label id="lab_ifrs-full_FinancialAssets_label_en-US" xlink:label="lab_ifrs-full_FinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssets" xlink:to="lab_ifrs-full_FinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory_019c29a6-49d1-701e-8713-0e208e45b3f7_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of effect on the income statement, OCI, and reserves as a result of hedge accounting</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019_019c29a6-48ae-78d8-9285-0cac3e227daf_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Granted in the year, weighted average exercise price (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options granted in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019"/>
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    <link:label id="lab_bbplc_NonRecurringItemsAbstract_019c29a6-4798-79dd-b8f2-08905e0364f9_terseLabel_en-US" xlink:label="lab_bbplc_NonRecurringItemsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-recurring items:</link:label>
    <link:label id="lab_bbplc_NonRecurringItemsAbstract_label_en-US" xlink:label="lab_bbplc_NonRecurringItemsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-Recurring Items [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NonRecurringItemsAbstract" xlink:href="bbplc-20251231.xsd#bbplc_NonRecurringItemsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NonRecurringItemsAbstract" xlink:to="lab_bbplc_NonRecurringItemsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents_019c29a6-4828-728b-8983-643b426a55c5_terseLabel_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral balances with central banks with original maturity of three months or less</link:label>
    <link:label id="lab_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents_label_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank Acceptance Assets, Classified As Cash Equivalents</link:label>
    <link:label id="lab_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents_documentation_en-US" xlink:label="lab_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A classification of cash equivalents cash collateral and settlement balances with banks with original maturity less than three months. [Refer: Cash equivalents]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents" xlink:href="bbplc-20251231.xsd#bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents" xlink:to="lab_bbplc_BankAcceptanceAssetsClassifiedAsCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ResidentialMortgageBackedSecurities1Member_019c29a6-49d1-7339-bd08-88c18d1d3412_terseLabel_en-US" xlink:label="lab_bbplc_ResidentialMortgageBackedSecurities1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Residential mortgage backed securities</link:label>
    <link:label id="lab_bbplc_ResidentialMortgageBackedSecurities1Member_label_en-US" xlink:label="lab_bbplc_ResidentialMortgageBackedSecurities1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Residential Mortgage Backed Securities1 [Member]</link:label>
    <link:label id="lab_bbplc_ResidentialMortgageBackedSecurities1Member_documentation_en-US" xlink:label="lab_bbplc_ResidentialMortgageBackedSecurities1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member represents the Residential Mortgage Backed Securities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ResidentialMortgageBackedSecurities1Member" xlink:href="bbplc-20251231.xsd#bbplc_ResidentialMortgageBackedSecurities1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ResidentialMortgageBackedSecurities1Member" xlink:to="lab_bbplc_ResidentialMortgageBackedSecurities1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets_019c29a6-4828-7832-8a3c-13f910ce9be7_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other assets, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets" xlink:to="lab_ifrs-full_OtherAssetsAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RepoSpreadMeasurementInputMember_019c29a6-4828-7d05-b8ba-e1d4536c8cc2_terseLabel_en-US" xlink:label="lab_bbplc_RepoSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repo spread</link:label>
    <link:label id="lab_bbplc_RepoSpreadMeasurementInputMember_label_en-US" xlink:label="lab_bbplc_RepoSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repo Spread, Measurement Input [Member]</link:label>
    <link:label id="lab_bbplc_RepoSpreadMeasurementInputMember_documentation_en-US" xlink:label="lab_bbplc_RepoSpreadMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Repo Spread</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RepoSpreadMeasurementInputMember" xlink:href="bbplc-20251231.xsd#bbplc_RepoSpreadMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RepoSpreadMeasurementInputMember" xlink:to="lab_bbplc_RepoSpreadMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseDecreaseInInputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability_019c29a6-4828-7ff6-ada7-cb65fc2398a2_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInInputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in inputs, assumptions and estimation techniques used for ECL, probability</link:label>
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    <link:label id="lab_bbplc_IncreaseDecreaseInInputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability_documentation_en-US" xlink:label="lab_bbplc_IncreaseDecreaseInInputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) In Inputs, Assumptions And Estimation Techniques Used To Determine Expected Credit Losses, Probability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseDecreaseInInputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseDecreaseInInputsAssumptionsAndEstimationTechniquesUsedToDetermineExpectedCreditLossesProbability"/>
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    <link:label id="lab_ifrs-full_AverageRateOfHedgingInstrument_019c29a6-4828-7332-8b7b-b7bdac125129_terseLabel_en-US" xlink:label="lab_ifrs-full_AverageRateOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average rate of hedging instrument</link:label>
    <link:label id="lab_ifrs-full_AverageRateOfHedgingInstrument_label_en-US" xlink:label="lab_ifrs-full_AverageRateOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Average rate of hedging instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AverageRateOfHedgingInstrument" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AverageRateOfHedgingInstrument"/>
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    <link:label id="lab_ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets_019c29a6-48ae-7430-931b-0531871af17a_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property</link:label>
    <link:label id="lab_ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Real estate, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets" xlink:to="lab_ifrs-full_PropertyAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_019c29a6-4930-78e0-8580-230134e20a57_terseLabel_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [domain]</link:label>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain_label_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:to="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RetainedEarningsMember_019c29a6-48ae-77df-b0dd-5975586740ca_terseLabel_en-US" xlink:label="lab_ifrs-full_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retained earnings</link:label>
    <link:label id="lab_ifrs-full_RetainedEarningsMember_label_en-US" xlink:label="lab_ifrs-full_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained earnings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RetainedEarningsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RetainedEarningsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RetainedEarningsMember" xlink:to="lab_ifrs-full_RetainedEarningsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_019c29a6-49d1-764a-8b34-df579f2ad570_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net investment (expense)/income</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of finance income (cost) [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinanceIncomeExpenseExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_019c29a6-4930-795b-a99f-5ef2a6b73483_verboseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">One to two years</link:label>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_019c29a6-4930-7d88-af75-d60d89cf0764_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2026</link:label>
    <link:label id="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than one year and not later than two years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:to="lab_ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut_019c29a6-49d1-70c6-bcce-01fe94936210_terseLabel_en-US" xlink:label="lab_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Duration of expected benefits are projected to be paid out</link:label>
    <link:label id="lab_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut_label_en-US" xlink:label="lab_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Duration Of Expected Benefits Are Projected To Be Paid Out</link:label>
    <link:label id="lab_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut_documentation_en-US" xlink:label="lab_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The duration of expected benefits are projected to be paid out.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut" xlink:href="bbplc-20251231.xsd#bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut" xlink:to="lab_bbplc_DurationOfExpectedBenefitsAreProjectedToBePaidOut" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InternalCreditGradesDomain_019c29a6-48ae-70b0-86d8-4eb31b47ec2d_terseLabel_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Internal credit grades [domain]</link:label>
    <link:label id="lab_ifrs-full_InternalCreditGradesDomain_label_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Internal credit grades [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InternalCreditGradesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InternalCreditGradesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InternalCreditGradesDomain" xlink:to="lab_ifrs-full_InternalCreditGradesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised_019c29a6-4930-7cd0-bf52-ee507840a340_terseLabel_en-US" xlink:label="lab_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deductible temporary differences for which no deferred tax asset is recognised</link:label>
    <link:label id="lab_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised_label_en-US" xlink:label="lab_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deductible temporary differences for which no deferred tax asset is recognised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" xlink:to="lab_ifrs-full_DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember_019c29a6-48ae-7b34-bdd6-ee6089f8ef0e_terseLabel_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss, category other income</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember_label_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets At Fair Value Through Profit Or Loss, Category Other Income [Member]</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember_documentation_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the financial assets at fair value through profit or loss category, located in other income. [Refer: Financial liabilities at fair value through profit or loss]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:to="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossCategoryOtherIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_019c29a6-4828-7da2-b30a-1a0c2ccb3622_terseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortisation</link:label>
    <link:label id="lab_ifrs-full_DepreciationAndAmortisationExpense_label_en-US" xlink:label="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation and amortisation expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationAndAmortisationExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationAndAmortisationExpense" xlink:to="lab_ifrs-full_DepreciationAndAmortisationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse_019c29a6-4798-75ae-a240-cb064f3a4b1b_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discount rate</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Discount rate used in current estimate of value in use</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" xlink:to="lab_ifrs-full_DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TaxRateEffectOfForeignTaxRates_019c29a6-4828-7468-924f-b5ae64e6cfca_verboseLabel_en-US" xlink:label="lab_ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Tax rate impact of profits/losses earned in territories with different statutory rates to the UK</link:label>
    <link:label id="lab_ifrs-full_TaxRateEffectOfForeignTaxRates_label_en-US" xlink:label="lab_ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax rate effect of foreign tax rates</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TaxRateEffectOfForeignTaxRates"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:to="lab_ifrs-full_TaxRateEffectOfForeignTaxRates" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_019c29a6-48ae-7f16-a9b1-9152dc2cd60d_terseLabel_en-US" xlink:label="lab_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Benefits paid</link:label>
    <link:label id="lab_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from payments from plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SpecificBasesMember_019c29a6-4828-7763-8f8b-7566d67bcb0a_terseLabel_en-US" xlink:label="lab_bbplc_SpecificBasesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Specific bases</link:label>
    <link:label id="lab_bbplc_SpecificBasesMember_label_en-US" xlink:label="lab_bbplc_SpecificBasesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Specific Bases [Member]</link:label>
    <link:label id="lab_bbplc_SpecificBasesMember_documentation_en-US" xlink:label="lab_bbplc_SpecificBasesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for macroeconomic variables used in the calculation of ECL based on specific bases.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SpecificBasesMember" xlink:href="bbplc-20251231.xsd#bbplc_SpecificBasesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SpecificBasesMember" xlink:to="lab_bbplc_SpecificBasesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member_019c29a6-4930-77e7-a9e8-2fcd2eef79e5_terseLabel_en-US" xlink:label="lab_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">8.407% Fixed Rate Resetting Subordinated Callable Loan (GBP 1,000m)</link:label>
    <link:label id="lab_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member_label_en-US" xlink:label="lab_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">8.407% Fixed Rate Resetting Subordinated Callable Loan, Due 2032 [Member]</link:label>
    <link:label id="lab_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member_documentation_en-US" xlink:label="lab_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">8.407% Fixed Rate Resetting Subordinated Callable Loan, Due 2032</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member" xlink:href="bbplc-20251231.xsd#bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member" xlink:to="lab_bbplc_A8.407FixedRateResettingSubordinatedCallableLoanDue2032Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_019c29a6-48ae-790e-8dab-bbf08169c240_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest revenue for financial assets measured at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:to="lab_ifrs-full_InterestRevenueForFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsDomain_019c29a6-49d1-7627-aa40-708497913b76_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Categories of financial assets [domain]</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:to="lab_ifrs-full_CategoriesOfFinancialAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BorrowingsConversionRatioThresholdPercent_019c29a6-4798-7f1d-be65-b9caa0120499_terseLabel_en-US" xlink:label="lab_bbplc_BorrowingsConversionRatioThresholdPercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Conversion ratio threshold, percent</link:label>
    <link:label id="lab_bbplc_BorrowingsConversionRatioThresholdPercent_label_en-US" xlink:label="lab_bbplc_BorrowingsConversionRatioThresholdPercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings, Conversion Ratio Threshold, Percent</link:label>
    <link:label id="lab_bbplc_BorrowingsConversionRatioThresholdPercent_documentation_en-US" xlink:label="lab_bbplc_BorrowingsConversionRatioThresholdPercent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Borrowings, Conversion Ratio Threshold, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BorrowingsConversionRatioThresholdPercent" xlink:href="bbplc-20251231.xsd#bbplc_BorrowingsConversionRatioThresholdPercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BorrowingsConversionRatioThresholdPercent" xlink:to="lab_bbplc_BorrowingsConversionRatioThresholdPercent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDividendsExplanatory_019c29a6-49d1-7b3d-bb56-c0c21c48bf82_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDividendsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends on ordinary shares and preference shares</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDividendsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDividendsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of dividends [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDividendsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDividendsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDividendsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDividendsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysBankIrelandPlcMember_019c29a6-48ae-784d-934e-a7c9fde8a8cd_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysBankIrelandPlcMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank Ireland PLC</link:label>
    <link:label id="lab_bbplc_BarclaysBankIrelandPlcMember_label_en-US" xlink:label="lab_bbplc_BarclaysBankIrelandPlcMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Bank Ireland PLC [member]</link:label>
    <link:label id="lab_bbplc_BarclaysBankIrelandPlcMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysBankIrelandPlcMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Barclays Bank Ireland PLC, the German business largely comprising Barclaycard and Business Banking customers.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysBankIrelandPlcMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysBankIrelandPlcMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysBankIrelandPlcMember" xlink:to="lab_bbplc_BarclaysBankIrelandPlcMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ChangesInEquityAbstract_019c29a6-4798-710f-84ff-15e52b7a2688_terseLabel_en-US" xlink:label="lab_ifrs-full_ChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in equity [abstract]</link:label>
    <link:label id="lab_ifrs-full_ChangesInEquityAbstract_label_en-US" xlink:label="lab_ifrs-full_ChangesInEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Changes in equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ChangesInEquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ChangesInEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ChangesInEquityAbstract" xlink:to="lab_ifrs-full_ChangesInEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GreaterThan30DaysPastDueMember_019c29a6-48ae-7449-b8de-f3b7559e9c1d_terseLabel_en-US" xlink:label="lab_bbplc_GreaterThan30DaysPastDueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Greater than 30 days past due</link:label>
    <link:label id="lab_bbplc_GreaterThan30DaysPastDueMember_label_en-US" xlink:label="lab_bbplc_GreaterThan30DaysPastDueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Greater Than 30 Days Past Due [Member]</link:label>
    <link:label id="lab_bbplc_GreaterThan30DaysPastDueMember_documentation_en-US" xlink:label="lab_bbplc_GreaterThan30DaysPastDueMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a time band of later than one month.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GreaterThan30DaysPastDueMember" xlink:href="bbplc-20251231.xsd#bbplc_GreaterThan30DaysPastDueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GreaterThan30DaysPastDueMember" xlink:to="lab_bbplc_GreaterThan30DaysPastDueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_country_NL_019c29a6-4798-7221-8557-ea55d307f9f7_terseLabel_en-US" xlink:label="lab_country_NL" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Netherlands</link:label>
    <link:label id="lab_country_NL_label_en-US" xlink:label="lab_country_NL" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NETHERLANDS</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_country_NL" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_NL"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_country_NL" xlink:to="lab_country_NL" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember_019c3f37-cf39-77f8-890e-2fd7b29ac14d_terseLabel_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest income</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember_label_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Net Interest Income [Member]</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember_documentation_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Net Interest Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember" xlink:href="bbplc-20251231.xsd#bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember" xlink:to="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisNetInterestIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CouponsPaidOnOtherEquityInstruments_019c29a6-4828-74fb-b3ef-6d07b01ffe61_terseLabel_en-US" xlink:label="lab_bbplc_CouponsPaidOnOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other equity instruments coupons paid</link:label>
    <link:label id="lab_bbplc_CouponsPaidOnOtherEquityInstruments_label_en-US" xlink:label="lab_bbplc_CouponsPaidOnOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Coupons Paid On Other Equity Instruments</link:label>
    <link:label id="lab_bbplc_CouponsPaidOnOtherEquityInstruments_documentation_en-US" xlink:label="lab_bbplc_CouponsPaidOnOtherEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of increase (decrease) in equity through other equity instruments coupons paid.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CouponsPaidOnOtherEquityInstruments" xlink:href="bbplc-20251231.xsd#bbplc_CouponsPaidOnOtherEquityInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CouponsPaidOnOtherEquityInstruments" xlink:to="lab_bbplc_CouponsPaidOnOtherEquityInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_019c29a6-4930-76ba-8ae1-f7603e19c7ec_negatedPeriodStartLabel_en-US" xlink:label="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset), beginning of period</link:label>
    <link:label id="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_019c29a6-4930-76f7-ae61-1fbede774c8a_negatedPeriodEndLabel_en-US" xlink:label="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset), end of period</link:label>
    <link:label id="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_019c29a6-4930-7682-b0e5-419ee46aff61_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset)</link:label>
    <link:label id="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans_label_en-US" xlink:label="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net defined benefit liability (asset)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:to="lab_ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialInstrumentsNotCreditimpairedMember_019c29a6-48ae-7f40-bc05-23c6c0e55719_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialInstrumentsNotCreditimpairedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stage 2</link:label>
    <link:label id="lab_ifrs-full_FinancialInstrumentsNotCreditimpairedMember_label_en-US" xlink:label="lab_ifrs-full_FinancialInstrumentsNotCreditimpairedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial instruments not credit-impaired [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialInstrumentsNotCreditimpairedMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialInstrumentsNotCreditimpairedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialInstrumentsNotCreditimpairedMember" xlink:to="lab_ifrs-full_FinancialInstrumentsNotCreditimpairedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_WeightedExpectedCreditLossUpliftPercentage_019c29a6-4930-7d00-9cb9-d74b91602187_terseLabel_en-US" xlink:label="lab_bbplc_WeightedExpectedCreditLossUpliftPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted expected credit loss, uplift percentage</link:label>
    <link:label id="lab_bbplc_WeightedExpectedCreditLossUpliftPercentage_label_en-US" xlink:label="lab_bbplc_WeightedExpectedCreditLossUpliftPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Expected Credit Loss, Uplift Percentage</link:label>
    <link:label id="lab_bbplc_WeightedExpectedCreditLossUpliftPercentage_documentation_en-US" xlink:label="lab_bbplc_WeightedExpectedCreditLossUpliftPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount (expressed as a percentage) of weighted expected credit lossuplift from the baseline expected credit loss.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_WeightedExpectedCreditLossUpliftPercentage" xlink:href="bbplc-20251231.xsd#bbplc_WeightedExpectedCreditLossUpliftPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_WeightedExpectedCreditLossUpliftPercentage" xlink:to="lab_bbplc_WeightedExpectedCreditLossUpliftPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised_019c29a6-4930-7238-8d44-8bfd6d3961ab_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Difference between initial FV and transaction price to be recognised in profit or loss, amortisation and releases</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) through amounts recognised in profit or loss, aggregate difference between fair value at initial recognition and transaction price yet to be recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughAmountsRecognisedInProfitOrLossAggregateDifferenceBetweenFairValueAtInitialRecognitionAndAmountDeterminedUsingValuationTechniqueYetToBeRecognised" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement_019c29a6-48ae-7040-a579-d26a4f2dbe47_negatedLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less: forfeited in the year (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options forfeited in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:to="lab_ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract_019c29a6-48ae-7413-b14b-6f966fc2ce40_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:to="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AdjustmentForNonCashItemsAbstract_019c29a6-4828-7ea0-90de-f0ec774bf0ed_terseLabel_en-US" xlink:label="lab_bbplc_AdjustmentForNonCashItemsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment for non-cash items:</link:label>
    <link:label id="lab_bbplc_AdjustmentForNonCashItemsAbstract_label_en-US" xlink:label="lab_bbplc_AdjustmentForNonCashItemsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment For Non-Cash Items [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AdjustmentForNonCashItemsAbstract" xlink:href="bbplc-20251231.xsd#bbplc_AdjustmentForNonCashItemsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AdjustmentForNonCashItemsAbstract" xlink:to="lab_bbplc_AdjustmentForNonCashItemsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SurplusDeficitInPlan_019c29a6-4930-74de-93ad-077b26332566_verboseLabel_en-US" xlink:label="lab_ifrs-full_SurplusDeficitInPlan" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Surplus in plan</link:label>
    <link:label id="lab_ifrs-full_SurplusDeficitInPlan_019c29a6-4930-7a0b-bcd6-841c439720fe_totalLabel_en-US" xlink:label="lab_ifrs-full_SurplusDeficitInPlan" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net surplus</link:label>
    <link:label id="lab_ifrs-full_SurplusDeficitInPlan_label_en-US" xlink:label="lab_ifrs-full_SurplusDeficitInPlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Surplus (deficit) in plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SurplusDeficitInPlan" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SurplusDeficitInPlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SurplusDeficitInPlan" xlink:to="lab_ifrs-full_SurplusDeficitInPlan" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A633SubordinatedNotesDue2032Member_019c29a6-4828-7524-a196-4d977cd2c2a0_terseLabel_en-US" xlink:label="lab_bbplc_A633SubordinatedNotesDue2032Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">6.33% Subordinated Notes (GBP 50m)</link:label>
    <link:label id="lab_bbplc_A633SubordinatedNotesDue2032Member_label_en-US" xlink:label="lab_bbplc_A633SubordinatedNotesDue2032Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">6.33% Subordinated Notes, Due 2032 [Member]</link:label>
    <link:label id="lab_bbplc_A633SubordinatedNotesDue2032Member_documentation_en-US" xlink:label="lab_bbplc_A633SubordinatedNotesDue2032Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 6.33% Subordinated Notes maturing in 2032.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A633SubordinatedNotesDue2032Member" xlink:href="bbplc-20251231.xsd#bbplc_A633SubordinatedNotesDue2032Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A633SubordinatedNotesDue2032Member" xlink:to="lab_bbplc_A633SubordinatedNotesDue2032Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities_019c29a6-4798-7327-b649-dfce2fc108d8_terseLabel_en-US" xlink:label="lab_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) recognised in other comprehensive income, fair value measurement, assets (liabilities) net</link:label>
    <link:label id="lab_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities_label_en-US" xlink:label="lab_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) Recognised In Other Comprehensive Income Including Exchange Differences, Fair Value Measurement, Assets (Liabilities)</link:label>
    <link:label id="lab_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The gains (losses) recognised in other comprehensive income on the fair value measurement of assets and liabilities. [Refer: At fair value [member]; Other comprehensive income]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities" xlink:to="lab_bbplc_GainsLossesRecognisedInOtherComprehensiveIncomeIncludingExchangeDifferencesFairValueMeasurementAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_ContactPersonnelName_019c29a6-4931-7d97-9d10-b7a2a919223e_terseLabel_en-US" xlink:label="lab_dei_ContactPersonnelName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contact Personnel Name</link:label>
    <link:label id="lab_dei_ContactPersonnelName_label_en-US" xlink:label="lab_dei_ContactPersonnelName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contact Personnel Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_ContactPersonnelName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_ContactPersonnelName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_ContactPersonnelName" xlink:to="lab_dei_ContactPersonnelName" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgingInstrumentLiabilities_019c29a6-48ae-7dbb-9330-011aecd3490a_negatedLabel_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Hedging instrument, liabilities</link:label>
    <link:label id="lab_ifrs-full_HedgingInstrumentLiabilities_label_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedging instrument, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgingInstrumentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgingInstrumentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgingInstrumentLiabilities" xlink:to="lab_ifrs-full_HedgingInstrumentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UpsideTwoMember_019c29a6-48ae-71d3-aaca-942cbe4e54f0_terseLabel_en-US" xlink:label="lab_bbplc_UpsideTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Upside 2</link:label>
    <link:label id="lab_bbplc_UpsideTwoMember_label_en-US" xlink:label="lab_bbplc_UpsideTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Upside 2 [member]</link:label>
    <link:label id="lab_bbplc_UpsideTwoMember_documentation_en-US" xlink:label="lab_bbplc_UpsideTwoMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The upside 2 scenario. The favourable scenarios are calibrated to be symmetric to the adverse scenarios, subject to a ceiling calibrated to relevant recent favourable benchmark scenarios.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UpsideTwoMember" xlink:href="bbplc-20251231.xsd#bbplc_UpsideTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UpsideTwoMember" xlink:to="lab_bbplc_UpsideTwoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember_019c29a6-4828-772d-8a43-5bd6a80ce19a_terseLabel_en-US" xlink:label="lab_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contingent liabilities</link:label>
    <link:label id="lab_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember_label_en-US" xlink:label="lab_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contingent Liabilities And Financial Guarantees [Member]</link:label>
    <link:label id="lab_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember_documentation_en-US" xlink:label="lab_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Contingent Liabilities And Financial Guarantees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember" xlink:href="bbplc-20251231.xsd#bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember" xlink:to="lab_bbplc_ContingentLiabilitiesAndFinancialGuaranteesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CertainCoreBankingPlatformsMember_019c29a6-4931-7b8d-b1a5-7f1a6c7afbff_terseLabel_en-US" xlink:label="lab_bbplc_CertainCoreBankingPlatformsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Certain core banking platforms</link:label>
    <link:label id="lab_bbplc_CertainCoreBankingPlatformsMember_label_en-US" xlink:label="lab_bbplc_CertainCoreBankingPlatformsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Certain Core Banking Platforms [Member]</link:label>
    <link:label id="lab_bbplc_CertainCoreBankingPlatformsMember_documentation_en-US" xlink:label="lab_bbplc_CertainCoreBankingPlatformsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for certain core banking platforms, internally developed by the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CertainCoreBankingPlatformsMember" xlink:href="bbplc-20251231.xsd#bbplc_CertainCoreBankingPlatformsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CertainCoreBankingPlatformsMember" xlink:to="lab_bbplc_CertainCoreBankingPlatformsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MotorFinanceCommissionArrangementsMember_019c29a6-4828-7048-b4e4-b8ba05c4f216_terseLabel_en-US" xlink:label="lab_bbplc_MotorFinanceCommissionArrangementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Motor finance commission arrangements</link:label>
    <link:label id="lab_bbplc_MotorFinanceCommissionArrangementsMember_label_en-US" xlink:label="lab_bbplc_MotorFinanceCommissionArrangementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Motor Finance Commission Arrangements [Member]</link:label>
    <link:label id="lab_bbplc_MotorFinanceCommissionArrangementsMember_documentation_en-US" xlink:label="lab_bbplc_MotorFinanceCommissionArrangementsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Motor Finance Commission Arrangements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MotorFinanceCommissionArrangementsMember" xlink:href="bbplc-20251231.xsd#bbplc_MotorFinanceCommissionArrangementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MotorFinanceCommissionArrangementsMember" xlink:to="lab_bbplc_MotorFinanceCommissionArrangementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityListingsTable_019c29a6-4827-76fc-a227-a0588f05e781_terseLabel_en-US" xlink:label="lab_dei_EntityListingsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Listings [Table]</link:label>
    <link:label id="lab_dei_EntityListingsTable_label_en-US" xlink:label="lab_dei_EntityListingsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Listings [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityListingsTable" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityListingsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityListingsTable" xlink:to="lab_dei_EntityListingsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome_019c29a6-49d1-7804-a107-a8f8fd219e4c_terseLabel_en-US" xlink:label="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedging gains or losses recognised in other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) on hedge ineffectiveness recognised in other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xlink:to="lab_ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_019c29a6-4798-7c4a-a907-2d2d26640674_terseLabel_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income/(loss) that may be recycled to profit or loss:</link:label>
    <link:label id="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_label_en-US" xlink:label="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:to="lab_ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContractLiabilities_019c29a6-4931-7112-becd-7b2c4bc2430c_terseLabel_en-US" xlink:label="lab_ifrs-full_ContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract liabilities</link:label>
    <link:label id="lab_ifrs-full_ContractLiabilities_label_en-US" xlink:label="lab_ifrs-full_ContractLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContractLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContractLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContractLiabilities" xlink:to="lab_ifrs-full_ContractLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativesMember_019c29a6-4931-77d2-a9f0-6de8f0ed4d34_netLabel_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Derivative financial instruments</link:label>
    <link:label id="lab_ifrs-full_DerivativesMember_019c29a6-4931-7c5c-a1e9-f5fe5a015f95_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial instruments</link:label>
    <link:label id="lab_ifrs-full_DerivativesMember_019c29a6-4931-78ec-bd60-6b4b1e195cec_verboseLabel_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net derivative financial instruments</link:label>
    <link:label id="lab_ifrs-full_DerivativesMember_label_en-US" xlink:label="lab_ifrs-full_DerivativesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativesMember" xlink:to="lab_ifrs-full_DerivativesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory_019c29a6-4828-785c-9dbc-6d72bc9db377_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for assets pledged, collateral received and assets transferred</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for collateral [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForCollateralExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_UnusedTaxLossesMember_019c29a6-4798-7a52-a26f-b35f6efc915c_verboseLabel_en-US" xlink:label="lab_ifrs-full_UnusedTaxLossesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unused tax losses</link:label>
    <link:label id="lab_ifrs-full_UnusedTaxLossesMember_019c29a6-4798-7f55-87f9-9bfa75082e89_terseLabel_en-US" xlink:label="lab_ifrs-full_UnusedTaxLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax losses carried forward</link:label>
    <link:label id="lab_ifrs-full_UnusedTaxLossesMember_label_en-US" xlink:label="lab_ifrs-full_UnusedTaxLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unused tax losses [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_UnusedTaxLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_UnusedTaxLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_UnusedTaxLossesMember" xlink:to="lab_ifrs-full_UnusedTaxLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_019c29a6-4931-7e46-bca5-cb5b6ae602cc_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency translation reserve</link:label>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_label_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of exchange differences on translation [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:to="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysBordangInvestmentsS.aR.l.Member_019c29a6-4798-7355-a381-9fb0f5f8a77c_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysBordangInvestmentsS.aR.l.Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bordang Investments S.&#224; r.l.</link:label>
    <link:label id="lab_bbplc_BarclaysBordangInvestmentsS.aR.l.Member_label_en-US" xlink:label="lab_bbplc_BarclaysBordangInvestmentsS.aR.l.Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Bordang Investments S.&#224; r.l. [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysBordangInvestmentsS.aR.l.Member_documentation_en-US" xlink:label="lab_bbplc_BarclaysBordangInvestmentsS.aR.l.Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Bordang Investments S.&#224; r.l.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysBordangInvestmentsS.aR.l.Member" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysBordangInvestmentsS.aR.l.Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysBordangInvestmentsS.aR.l.Member" xlink:to="lab_bbplc_BarclaysBordangInvestmentsS.aR.l.Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysInternationalHoldingsLimitedMember_019c29a6-4798-73fb-a4e8-675314758eb2_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysInternationalHoldingsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays International Holdings Limited</link:label>
    <link:label id="lab_bbplc_BarclaysInternationalHoldingsLimitedMember_label_en-US" xlink:label="lab_bbplc_BarclaysInternationalHoldingsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays International Holdings Limited [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysInternationalHoldingsLimitedMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysInternationalHoldingsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays International Holdings Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysInternationalHoldingsLimitedMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysInternationalHoldingsLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysInternationalHoldingsLimitedMember" xlink:to="lab_bbplc_BarclaysInternationalHoldingsLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersFromStage2ToStage1Member_019c29a6-4930-7fb7-b0b8-fe19b04dcc0f_terseLabel_en-US" xlink:label="lab_bbplc_TransfersFromStage2ToStage1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers from Stage 2 to Stage 1</link:label>
    <link:label id="lab_bbplc_TransfersFromStage2ToStage1Member_label_en-US" xlink:label="lab_bbplc_TransfersFromStage2ToStage1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers From Stage 2 To Stage 1 [Member]</link:label>
    <link:label id="lab_bbplc_TransfersFromStage2ToStage1Member_documentation_en-US" xlink:label="lab_bbplc_TransfersFromStage2ToStage1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the transfers of financial assets from stage 2 to stage 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersFromStage2ToStage1Member" xlink:href="bbplc-20251231.xsd#bbplc_TransfersFromStage2ToStage1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersFromStage2ToStage1Member" xlink:to="lab_bbplc_TransfersFromStage2ToStage1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalAxis_019c29a6-4931-767d-9500-db71fd044563_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of share capital [axis]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfShareCapitalAxis_label_en-US" xlink:label="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of share capital [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfShareCapitalAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfShareCapitalAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfShareCapitalAxis" xlink:to="lab_ifrs-full_ClassesOfShareCapitalAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssetsHeldForTrading_019c29a6-4827-75c7-a786-5e5e274e8dad_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssetsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative assets held for trading</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssetsHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssetsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial assets held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssetsHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssetsHeldForTrading"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialAssetsHeldForTrading" xlink:to="lab_ifrs-full_DerivativeFinancialAssetsHeldForTrading" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain_019c29a6-48ae-77f7-ac3f-cfe045fed33e_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transferred financial assets that are not derecognised in their entirety [domain]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain_019c29a6-48ae-7337-9d8c-14fbdd609d9c_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Transferred financial assets that are not derecognised in their entirety [domain]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transferred financial assets that are not derecognised in their entirety [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain" xlink:to="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Equity_019c29a6-48ae-7be7-a48d-46a6351d6b93_totalLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity</link:label>
    <link:label id="lab_ifrs-full_Equity_019c29a6-48ae-7143-9d63-d5db3a1c202d_periodStartLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, equity</link:label>
    <link:label id="lab_ifrs-full_Equity_019c29a6-48ae-7679-87c0-4fb7dd1ef05c_periodEndLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, equity</link:label>
    <link:label id="lab_ifrs-full_Equity_019c29a6-48ae-7fa7-b4e0-5b0e61938f36_terseLabel_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:label id="lab_ifrs-full_Equity_label_en-US" xlink:label="lab_ifrs-full_Equity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Equity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Equity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Equity" xlink:to="lab_ifrs-full_Equity" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfCommitmentsExplanatory_019c29a6-48ae-7e67-8436-8379b43894bf_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Legal, competition and regulatory matters</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfCommitmentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of commitments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCommitmentsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfCommitmentsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember_019c3f37-cf39-7986-9b80-6d066d23c0c2_terseLabel_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Taxation effects on the above</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember_label_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Taxation Effects [Member]</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember_documentation_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Taxation Effects</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember" xlink:href="bbplc-20251231.xsd#bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember" xlink:to="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisTaxationEffectsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsMember_019c29a6-48ae-7b9a-b61e-b12eb7edb733_terseLabel_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase agreements</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsMember_label_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Repurchase Agreements [Member]</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsMember_documentation_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for reverse repurchase agreements.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReverseRepurchaseAgreementsMember" xlink:href="bbplc-20251231.xsd#bbplc_ReverseRepurchaseAgreementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReverseRepurchaseAgreementsMember" xlink:to="lab_bbplc_ReverseRepurchaseAgreementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax_019c29a6-4828-7d9b-8453-b9f86436b7ea_terseLabel_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount recycled from OCI due to hedged item affecting income statement, hedges of net investments in foreign operations</link:label>
    <link:label id="lab_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax_label_en-US" xlink:label="lab_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification adjustments on hedges of net investments in foreign operations, net of tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" xlink:to="lab_ifrs-full_ReclassificationAdjustmentsOnHedgesOfNetInvestmentsInForeignOperationsNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue_019c29a6-4828-706c-9f31-92d3c2b9aa03_terseLabel_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total subordinated liabilities</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue_019c29a6-4828-71dd-bafd-91647f513644_totalLabel_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total subordinated liabilities</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue_label_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Liabilities, Including Those Designated At Fair Value</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue_documentation_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Subordinated Liabilities, Including Those Designated At Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue" xlink:href="bbplc-20251231.xsd#bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue" xlink:to="lab_bbplc_SubordinatedLiabilitiesIncludingThoseDesignatedAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_019c29a6-4931-785c-9bcd-f53a3a154916_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency translation differences</link:label>
    <link:label id="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation_label_en-US" xlink:label="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income, before tax, exchange differences on translation of foreign operations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:to="lab_ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ShareBasedCompensationAndDeferredCompensationMember_019c29a6-4828-7f1a-90b6-036c1e1f3abf_terseLabel_en-US" xlink:label="lab_bbplc_ShareBasedCompensationAndDeferredCompensationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share based payments and deferred compensation</link:label>
    <link:label id="lab_bbplc_ShareBasedCompensationAndDeferredCompensationMember_label_en-US" xlink:label="lab_bbplc_ShareBasedCompensationAndDeferredCompensationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-Based Compensation And Deferred Compensation [Member]</link:label>
    <link:label id="lab_bbplc_ShareBasedCompensationAndDeferredCompensationMember_documentation_en-US" xlink:label="lab_bbplc_ShareBasedCompensationAndDeferredCompensationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for share-based compensation arrangements and deferred compensation.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ShareBasedCompensationAndDeferredCompensationMember" xlink:href="bbplc-20251231.xsd#bbplc_ShareBasedCompensationAndDeferredCompensationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ShareBasedCompensationAndDeferredCompensationMember" xlink:to="lab_bbplc_ShareBasedCompensationAndDeferredCompensationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradingIncomeExpenseAbstract_019c29a6-48ae-72a3-9a37-bb4081e4a76f_terseLabel_en-US" xlink:label="lab_ifrs-full_TradingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading income (expense) [abstract]</link:label>
    <link:label id="lab_ifrs-full_TradingIncomeExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_TradingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading income (expense) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradingIncomeExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradingIncomeExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradingIncomeExpenseAbstract" xlink:to="lab_ifrs-full_TradingIncomeExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory_019c29a6-49d1-7a99-a57b-ed921a395fba_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember_019c29a6-4828-7f1f-b1f5-b3b598b30be0_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inflation - Inflation correlation</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default, Measurement Input, Correlation [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Probability Of Default, Measurement Input, Correlation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember" xlink:to="lab_bbplc_ProbabilityOfDefaultMeasurementInputCorrelationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestRateBenchmarksDomain_019c29a6-49d1-7b5f-b035-6c83d4a9f570_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRateBenchmarksDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate benchmarks [domain]</link:label>
    <link:label id="lab_ifrs-full_InterestRateBenchmarksDomain_label_en-US" xlink:label="lab_ifrs-full_InterestRateBenchmarksDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest rate benchmarks [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRateBenchmarksDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRateBenchmarksDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRateBenchmarksDomain" xlink:to="lab_ifrs-full_InterestRateBenchmarksDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Level2OfFairValueHierarchyMember_019c29a6-4828-7e44-a96e-ddcd7f94e692_terseLabel_en-US" xlink:label="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Level 2</link:label>
    <link:label id="lab_ifrs-full_Level2OfFairValueHierarchyMember_label_en-US" xlink:label="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Level 2 of fair value hierarchy [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Level2OfFairValueHierarchyMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Level2OfFairValueHierarchyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Level2OfFairValueHierarchyMember" xlink:to="lab_ifrs-full_Level2OfFairValueHierarchyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UpsideOneMember_019c29a6-4931-70c4-98bb-873c4fd9094d_terseLabel_en-US" xlink:label="lab_bbplc_UpsideOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Upside 1</link:label>
    <link:label id="lab_bbplc_UpsideOneMember_label_en-US" xlink:label="lab_bbplc_UpsideOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Upside 1 [member]</link:label>
    <link:label id="lab_bbplc_UpsideOneMember_documentation_en-US" xlink:label="lab_bbplc_UpsideOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The upside 1 scenario. The favourable scenarios are calibrated to be symmetric to the adverse scenarios, subject to a ceiling calibrated to relevant recent favourable benchmark scenarios.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UpsideOneMember" xlink:href="bbplc-20251231.xsd#bbplc_UpsideOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UpsideOneMember" xlink:to="lab_bbplc_UpsideOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OnBalanceSheetAssetsMember_019c29a6-4828-743b-9d98-f2f0a67a2710_terseLabel_en-US" xlink:label="lab_bbplc_OnBalanceSheetAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">On-balance sheet</link:label>
    <link:label id="lab_bbplc_OnBalanceSheetAssetsMember_label_en-US" xlink:label="lab_bbplc_OnBalanceSheetAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">On-Balance Sheet Assets [Member]</link:label>
    <link:label id="lab_bbplc_OnBalanceSheetAssetsMember_documentation_en-US" xlink:label="lab_bbplc_OnBalanceSheetAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the on-balance sheet assets of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OnBalanceSheetAssetsMember" xlink:href="bbplc-20251231.xsd#bbplc_OnBalanceSheetAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OnBalanceSheetAssetsMember" xlink:to="lab_bbplc_OnBalanceSheetAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_019c29a6-4828-7233-ab66-ba175b540231_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average share price at exercise/release during year (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_019c29a6-4828-7eb0-ad3e-0eb1d193e45d_periodStartLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Outstanding at beginning of year, weighted average exercise price (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_019c29a6-4828-7b05-8611-681c6cc1090a_periodEndLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Outstanding at end of year, weighted average exercise price (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options outstanding in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember_019c3f37-cf39-7892-801b-1dedea920f1a_terseLabel_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow hedge reserve</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember_label_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Cash Flow Hedge Reserve [Member]</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember_documentation_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis, Cash Flow Hedge Reserve</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember" xlink:href="bbplc-20251231.xsd#bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember" xlink:to="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisCashFlowHedgeReserveMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent_019c29a6-49d1-7274-9cf6-80d72f5253ce_terseLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total equity holders of the parent</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:to="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SalesAndMarketingExpense_019c29a6-4931-7829-bd89-8e1c0e775018_terseLabel_en-US" xlink:label="lab_ifrs-full_SalesAndMarketingExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Marketing and advertising</link:label>
    <link:label id="lab_ifrs-full_SalesAndMarketingExpense_label_en-US" xlink:label="lab_ifrs-full_SalesAndMarketingExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales and marketing expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SalesAndMarketingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SalesAndMarketingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SalesAndMarketingExpense" xlink:to="lab_ifrs-full_SalesAndMarketingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ThroughDecember152034Member_019c29a6-4930-7d31-86ed-a7f73a748d0d_terseLabel_en-US" xlink:label="lab_bbplc_ThroughDecember152034Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Through December 15, 2034</link:label>
    <link:label id="lab_bbplc_ThroughDecember152034Member_label_en-US" xlink:label="lab_bbplc_ThroughDecember152034Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Through December 15, 2034 [Member]</link:label>
    <link:label id="lab_bbplc_ThroughDecember152034Member_documentation_en-US" xlink:label="lab_bbplc_ThroughDecember152034Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Through December 15, 2034</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ThroughDecember152034Member" xlink:href="bbplc-20251231.xsd#bbplc_ThroughDecember152034Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ThroughDecember152034Member" xlink:to="lab_bbplc_ThroughDecember152034Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod_019c29a6-4931-710b-b9ae-8d75eb83e8ba_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest and similar income</link:label>
    <link:label id="lab_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod_019c29a6-4931-71fe-86c5-b3e378e2c635_totalLabel_en-US" xlink:label="lab_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Interest and similar income</link:label>
    <link:label id="lab_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod_label_en-US" xlink:label="lab_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest revenue calculated using effective interest method</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod" xlink:to="lab_ifrs-full_InterestRevenueCalculatedUsingEffectiveInterestMethod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherIncome1Member_019c29a6-4828-7ea0-84d8-13400dbb9d7c_terseLabel_en-US" xlink:label="lab_bbplc_OtherIncome1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recycled to other income</link:label>
    <link:label id="lab_bbplc_OtherIncome1Member_label_en-US" xlink:label="lab_bbplc_OtherIncome1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Income1 [Member]</link:label>
    <link:label id="lab_bbplc_OtherIncome1Member_documentation_en-US" xlink:label="lab_bbplc_OtherIncome1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the amount of operating income that the entity does not separately disclose in the same statement or note.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherIncome1Member" xlink:href="bbplc-20251231.xsd#bbplc_OtherIncome1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherIncome1Member" xlink:to="lab_bbplc_OtherIncome1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysExecutionServicesMember_019c29a6-4828-7cfc-aa2d-2c9f96484141_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysExecutionServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Execution Services</link:label>
    <link:label id="lab_bbplc_BarclaysExecutionServicesMember_label_en-US" xlink:label="lab_bbplc_BarclaysExecutionServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Execution Services [member]</link:label>
    <link:label id="lab_bbplc_BarclaysExecutionServicesMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysExecutionServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Services Limited, the Group services company set up to provide services to Barclays UK and Barclays International to deliver operational continuity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysExecutionServicesMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysExecutionServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysExecutionServicesMember" xlink:to="lab_bbplc_BarclaysExecutionServicesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LoansAndAdvancesAndDebtSecuritiesMember_019c29a6-48ae-7c66-8996-f4a05c3b2302_terseLabel_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAndDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesAndDebtSecuritiesMember_label_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAndDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans And Advances And Debt Securities [Member]</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesAndDebtSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAndDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loans And Advances And Debt Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LoansAndAdvancesAndDebtSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_LoansAndAdvancesAndDebtSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LoansAndAdvancesAndDebtSecuritiesMember" xlink:to="lab_bbplc_LoansAndAdvancesAndDebtSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowHedgesMember_019c29a6-48ae-7c77-a105-cb25f1d6b82d_terseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowHedgesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow hedges</link:label>
    <link:label id="lab_ifrs-full_CashFlowHedgesMember_019c29a6-48ae-75a4-9488-cdab06a9f8b5_verboseLabel_en-US" xlink:label="lab_ifrs-full_CashFlowHedgesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash flow</link:label>
    <link:label id="lab_ifrs-full_CashFlowHedgesMember_label_en-US" xlink:label="lab_ifrs-full_CashFlowHedgesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flow hedges [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowHedgesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowHedgesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowHedgesMember" xlink:to="lab_ifrs-full_CashFlowHedgesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable_019c29a6-4930-709c-9e5a-1169511dc1a9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of information about unconsolidated structured entities controlled by investment entity [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information about unconsolidated structured entities controlled by investment entity [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable" xlink:to="lab_ifrs-full_DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember_019c29a6-4828-780d-b403-660294066882_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.0 to 0.60%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Zero To Point Sixty Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale and retail lending with a default grade betweeen 1 and 11. A probability of default between 0.0% and .60%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultZeroToPointSixtyPercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets_019c29a6-49d1-77fd-823b-0b509b9448f3_terseLabel_en-US" xlink:label="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets transferred into level 3</link:label>
    <link:label id="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets_label_en-US" xlink:label="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers into Level 3 of fair value hierarchy, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets" xlink:to="lab_ifrs-full_TransfersIntoLevel3OfFairValueHierarchyAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseByNatureAbstract_019c29a6-49d1-7387-a675-8b3a8ddce7f2_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseByNatureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expenses by nature [abstract]</link:label>
    <link:label id="lab_ifrs-full_ExpenseByNatureAbstract_label_en-US" xlink:label="lab_ifrs-full_ExpenseByNatureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expenses by nature [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseByNatureAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseByNatureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseByNatureAbstract" xlink:to="lab_ifrs-full_ExpenseByNatureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember_019c29a6-49d1-7581-8ed2-d4647b5dd263_terseLabel_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">+/- 25bps</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember_label_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Twenty-Five Basis Points, Sensitivity Analysis [Member]</link:label>
    <link:label id="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember_documentation_en-US" xlink:label="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the twenty-five basis point movement in rates.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember" xlink:href="bbplc-20251231.xsd#bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember" xlink:to="lab_bbplc_TwentyFiveBasisPointsSensitivityAnalysisMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AssetBackedFundingProgrammesMember_019c29a6-4828-75c2-bd8f-186d590b1844_terseLabel_en-US" xlink:label="lab_bbplc_AssetBackedFundingProgrammesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset backed funding programmes</link:label>
    <link:label id="lab_bbplc_AssetBackedFundingProgrammesMember_label_en-US" xlink:label="lab_bbplc_AssetBackedFundingProgrammesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asset Backed Funding Programmes [Member]</link:label>
    <link:label id="lab_bbplc_AssetBackedFundingProgrammesMember_documentation_en-US" xlink:label="lab_bbplc_AssetBackedFundingProgrammesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for asset-backed funding programmes that can readily be used to raise additional secured funding and are available to support future issuance.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AssetBackedFundingProgrammesMember" xlink:href="bbplc-20251231.xsd#bbplc_AssetBackedFundingProgrammesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AssetBackedFundingProgrammesMember" xlink:to="lab_bbplc_AssetBackedFundingProgrammesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxAssets_019c29a6-4798-7afa-8ea5-07e7621d5e5f_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax assets</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxAssets_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxAssets" xlink:to="lab_ifrs-full_DeferredTaxAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentAccountingStandard_019c29a6-49d1-7f17-a279-8ae833ad081a_terseLabel_en-US" xlink:label="lab_dei_DocumentAccountingStandard" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Accounting Standard</link:label>
    <link:label id="lab_dei_DocumentAccountingStandard_label_en-US" xlink:label="lab_dei_DocumentAccountingStandard" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Accounting Standard</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentAccountingStandard" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentAccountingStandard"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentAccountingStandard" xlink:to="lab_dei_DocumentAccountingStandard" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment_019c29a6-48ae-765b-8512-11a5d4e254fa_terseLabel_en-US" xlink:label="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation rate</link:label>
    <link:label id="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment_label_en-US" xlink:label="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation rate, property, plant and equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepreciationRatePropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xlink:to="lab_ifrs-full_DepreciationRatePropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialAssetsSubjectToOffsettingMember_019c29a6-4798-79d1-ba28-f44acf0d2487_terseLabel_en-US" xlink:label="lab_bbplc_FinancialAssetsSubjectToOffsettingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_bbplc_FinancialAssetsSubjectToOffsettingMember_label_en-US" xlink:label="lab_bbplc_FinancialAssetsSubjectToOffsettingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets Subject To Offsetting [Member]</link:label>
    <link:label id="lab_bbplc_FinancialAssetsSubjectToOffsettingMember_documentation_en-US" xlink:label="lab_bbplc_FinancialAssetsSubjectToOffsettingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial Assets Subject To Offsetting</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialAssetsSubjectToOffsettingMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialAssetsSubjectToOffsettingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialAssetsSubjectToOffsettingMember" xlink:to="lab_bbplc_FinancialAssetsSubjectToOffsettingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_019c29a6-48ae-784f-b44a-abd58ff4ead9_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average remaining contractual life</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average remaining contractual life of outstanding share options</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:to="lab_ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HeldForRiskManagementMember_019c29a6-48ae-7971-82a2-546fa49b83b2_terseLabel_en-US" xlink:label="lab_bbplc_HeldForRiskManagementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held for risk management</link:label>
    <link:label id="lab_bbplc_HeldForRiskManagementMember_label_en-US" xlink:label="lab_bbplc_HeldForRiskManagementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held For Risk Management [Member]</link:label>
    <link:label id="lab_bbplc_HeldForRiskManagementMember_documentation_en-US" xlink:label="lab_bbplc_HeldForRiskManagementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for derivatives held for risk management by th entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HeldForRiskManagementMember" xlink:href="bbplc-20251231.xsd#bbplc_HeldForRiskManagementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HeldForRiskManagementMember" xlink:to="lab_bbplc_HeldForRiskManagementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets_019c29a6-4931-7b59-9804-3453826c3838_terseLabel_en-US" xlink:label="lab_ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value</link:label>
    <link:label id="lab_ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value of assets representing continuing involvement in derecognised financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:to="lab_ifrs-full_FairValueOfAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_019c29a6-49d1-7844-b27f-bdc342caecfb_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for Share-based payments</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for share-based payment transactions [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal_019c29a6-4827-7684-957a-6a8b42a5317e_negatedTerseLabel_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net losses/(gains) transferred to net profit on disposal</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal_019c29a6-4827-7372-a85d-ae74724b4b2a_negatedLabel_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net losses/(gains) transferred to net profit on disposal</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal_label_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification Adjustments On Financial Assets Measured At Fair Value Through Other Comprehensive Income, Before Tax, On Disposal</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal_documentation_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of reclassification adjustments due to disposal of financial assets measured at fair value through other comprehensive income, before tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Financial assets measured at fair value through other comprehensive income; Other comprehensive income]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal" xlink:href="bbplc-20251231.xsd#bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal" xlink:to="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxOnDisposal" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets_019c29a6-4828-7526-97ca-080b33411052_terseLabel_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bonds</link:label>
    <link:label id="lab_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets_019c29a6-4828-7afd-813a-386fed450ecb_verboseLabel_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Debt instruments</link:label>
    <link:label id="lab_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets_label_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt instruments, amount contributed to fair value of plan assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:to="lab_ifrs-full_DebtInstrumentsAmountContributedToFairValueOfPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DecreaseThroughDerecognitionFinancialAssets_019c29a6-48ae-7c74-9ad8-1f4fba9cf938_negatedLabel_en-US" xlink:label="lab_ifrs-full_DecreaseThroughDerecognitionFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Disposals</link:label>
    <link:label id="lab_ifrs-full_DecreaseThroughDerecognitionFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_DecreaseThroughDerecognitionFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease through derecognition, financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DecreaseThroughDerecognitionFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DecreaseThroughDerecognitionFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DecreaseThroughDerecognitionFinancialAssets" xlink:to="lab_ifrs-full_DecreaseThroughDerecognitionFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember_019c29a6-4931-7dfe-bea4-4634846d95d1_terseLabel_en-US" xlink:label="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements and other similar secured borrowing</link:label>
    <link:label id="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember_label_en-US" xlink:label="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repurchase Agreements And Other Similar Secured Borrowing [Member]</link:label>
    <link:label id="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember_documentation_en-US" xlink:label="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for instruments sold with the intent to reacquire in repurchase agreements and on similar securities lent.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember" xlink:href="bbplc-20251231.xsd#bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember" xlink:to="lab_bbplc_RepurchaseAgreementsAndOtherSimilarSecuredBorrowingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_019c29a6-4930-7263-a429-194196cf98a6_terseLabel_en-US" xlink:label="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remeasurement gain - financial</link:label>
    <link:label id="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_019c29a6-4828-7a0e-a0fd-521d40f5d774_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about financial instruments [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities_019c29a6-4828-7390-a582-f9fcf36d231d_negatedTerseLabel_en-US" xlink:label="lab_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Repayments (Proceeds) Of Borrowings Classified As Financing Activities</link:label>
    <link:label id="lab_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities_documentation_en-US" xlink:label="lab_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash inflow from and outflow to settle other borrowings, classified as financing activities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities" xlink:href="bbplc-20251231.xsd#bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="lab_bbplc_OtherRepaymentsProceedsOfBorrowingsClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember_019c29a6-4798-7396-a1c4-a5bea8b56ef6_terseLabel_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Civil actions in respect of VRDO - private plaintiffs</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember_label_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Civil Actions In Respect Of VRDO - Private Plaintiffs [Member]</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember_documentation_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Civil Actions In Respect Of VRDO - Private Plaintiffs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember" xlink:href="bbplc-20251231.xsd#bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember" xlink:to="lab_bbplc_CivilActionsInRespectOfVRDOPrivatePlaintiffsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BuildingsMember_019c29a6-4931-7509-a8a6-2a57210eb7c3_terseLabel_en-US" xlink:label="lab_ifrs-full_BuildingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Freehold buildings</link:label>
    <link:label id="lab_ifrs-full_BuildingsMember_label_en-US" xlink:label="lab_ifrs-full_BuildingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Buildings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BuildingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BuildingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BuildingsMember" xlink:to="lab_ifrs-full_BuildingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProbabilityOfDefaultMeasurementInputMember_019c29a6-49d1-7013-92a6-93fa04c1cca7_terseLabel_en-US" xlink:label="lab_ifrs-full_ProbabilityOfDefaultMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">IR - IR correlation</link:label>
    <link:label id="lab_ifrs-full_ProbabilityOfDefaultMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_ProbabilityOfDefaultMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability of default, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProbabilityOfDefaultMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProbabilityOfDefaultMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProbabilityOfDefaultMeasurementInputMember" xlink:to="lab_ifrs-full_ProbabilityOfDefaultMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFinancialAssetsMember_019c29a6-4828-750f-ba05-dc42f732ece2_verboseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsMember_019c29a6-4828-779c-8a9e-3b113e8289e3_terseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial assets measured at amortised cost</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsMember_019c29a6-4828-7711-88eb-751f5d229dcf_netLabel_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsMember_label_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other, Financial Assets [Member]</link:label>
    <link:label id="lab_bbplc_OtherFinancialAssetsMember_documentation_en-US" xlink:label="lab_bbplc_OtherFinancialAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands a class of financial assets that are categorised as other.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFinancialAssetsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherFinancialAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFinancialAssetsMember" xlink:to="lab_bbplc_OtherFinancialAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DefinedContributionPlansMember_019c29a6-4828-7694-8bfe-83615f50d16f_terseLabel_en-US" xlink:label="lab_bbplc_DefinedContributionPlansMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined contribution schemes</link:label>
    <link:label id="lab_bbplc_DefinedContributionPlansMember_label_en-US" xlink:label="lab_bbplc_DefinedContributionPlansMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plans [Member]</link:label>
    <link:label id="lab_bbplc_DefinedContributionPlansMember_documentation_en-US" xlink:label="lab_bbplc_DefinedContributionPlansMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This members stands for post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DefinedContributionPlansMember" xlink:href="bbplc-20251231.xsd#bbplc_DefinedContributionPlansMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DefinedContributionPlansMember" xlink:to="lab_bbplc_DefinedContributionPlansMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments_019c29a6-4798-77d6-9286-563499a3da25_terseLabel_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-deductible impairments and losses on divestments, percentage</link:label>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments_label_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Non-Deductible Impairments And Losses On Divestments</link:label>
    <link:label id="lab_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments_documentation_en-US" xlink:label="lab_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Non-Deductible Impairments And Losses On Divestments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:href="bbplc-20251231.xsd#bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:to="lab_bbplc_TaxRateEffectNonDeductibleImpairmentsAndLossesOnDivestments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssets_019c29a6-4798-7fd9-9e59-692fa41439f2_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative&#160;financial instruments</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssets_019c29a6-4798-75f7-810e-c3b32cbc0f76_totalLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Derivative assets</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssets_019c29a6-4798-7556-8b8c-c9ea55c1001f_verboseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial assets</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssets_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialAssets" xlink:to="lab_ifrs-full_DerivativeFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_019c29a6-4931-7e2a-8297-87bf0b5e45bb_totalLabel_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Equity holders of the parent</link:label>
    <link:label id="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_label_en-US" xlink:label="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Profit (loss), attributable to ordinary equity holders of parent entity, used in calculating basic earnings per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:to="lab_ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_JPY_019c29a6-48ae-77b5-b24c-e321eb247632_netLabel_en-US" xlink:label="lab_currency_JPY" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">JPY</link:label>
    <link:label id="lab_currency_JPY_019c29a6-48ae-7983-bbff-bdf4e350ad88_terseLabel_en-US" xlink:label="lab_currency_JPY" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Japan, Yen</link:label>
    <link:label id="lab_currency_JPY_019c29a6-48ae-745d-b94a-e94eae8ed88f_verboseLabel_en-US" xlink:label="lab_currency_JPY" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">JPY</link:label>
    <link:label id="lab_currency_JPY_label_en-US" xlink:label="lab_currency_JPY" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Japan, Yen</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_JPY" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_JPY"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_JPY" xlink:to="lab_currency_JPY" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory_019c29a6-4828-7a0b-a4cc-abdb55c75bf0_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of hedged items in fair value hedges and hedged items in cash flow hedges and hedges of net investments in foreign operations</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedged items [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgedItemsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable_019c29a6-4828-7652-a75f-75639f3ea68c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysCapitalIncMember_019c29a6-49d1-7207-84a8-0044eb2d1e92_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysCapitalIncMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Capital Inc.</link:label>
    <link:label id="lab_bbplc_BarclaysCapitalIncMember_label_en-US" xlink:label="lab_bbplc_BarclaysCapitalIncMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Capital Inc [member]</link:label>
    <link:label id="lab_bbplc_BarclaysCapitalIncMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysCapitalIncMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Barclays Capital Inc.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysCapitalIncMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysCapitalIncMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysCapitalIncMember" xlink:to="lab_bbplc_BarclaysCapitalIncMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TemporaryStaffCosts_019c29a6-48ae-7f9a-8b6a-453284550221_terseLabel_en-US" xlink:label="lab_bbplc_TemporaryStaffCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Temporary staff costs</link:label>
    <link:label id="lab_bbplc_TemporaryStaffCosts_label_en-US" xlink:label="lab_bbplc_TemporaryStaffCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Temporary Staff Costs</link:label>
    <link:label id="lab_bbplc_TemporaryStaffCosts_documentation_en-US" xlink:label="lab_bbplc_TemporaryStaffCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of costs relating to temporary staff costs.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TemporaryStaffCosts" xlink:href="bbplc-20251231.xsd#bbplc_TemporaryStaffCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TemporaryStaffCosts" xlink:to="lab_bbplc_TemporaryStaffCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_019c29a6-4930-7f9c-bf56-b5666bc585d1_terseLabel_en-US" xlink:label="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remeasurement (loss)/gain - demographic</link:label>
    <link:label id="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue_019c29a6-48ae-736a-8a74-d10a80a87142_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Of which fair value of securities re-pledged/transferred to others</link:label>
    <link:label id="lab_ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue_label_en-US" xlink:label="lab_ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collateral sold or repledged in absence of default by owner of collateral, at fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue" xlink:to="lab_ifrs-full_AssetsSoldOrRepledgedAsCollateralAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GeographicalAreasAxis_019c29a6-49d1-72f0-983f-52f1351d0128_terseLabel_en-US" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Geographical areas [axis]</link:label>
    <link:label id="lab_ifrs-full_GeographicalAreasAxis_label_en-US" xlink:label="lab_ifrs-full_GeographicalAreasAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical areas [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeographicalAreasAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GeographicalAreasAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeographicalAreasAxis" xlink:to="lab_ifrs-full_GeographicalAreasAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GrossDomesticProductEconomicVariableMember_019c29a6-4798-70af-b9cd-f20bc01b72bd_terseLabel_en-US" xlink:label="lab_bbplc_GrossDomesticProductEconomicVariableMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">GDP</link:label>
    <link:label id="lab_bbplc_GrossDomesticProductEconomicVariableMember_label_en-US" xlink:label="lab_bbplc_GrossDomesticProductEconomicVariableMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Domestic Product, Economic Variable [Member]</link:label>
    <link:label id="lab_bbplc_GrossDomesticProductEconomicVariableMember_documentation_en-US" xlink:label="lab_bbplc_GrossDomesticProductEconomicVariableMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Gross Domestic Product, a key historic macroeconomic core variable. The GDP is compared against the forecast paths of the probability weights for each scenario, demonstrating the highest annual growth in the Upside scenarios; 5 year average in Baseline; lowest annual growth in Downside scenarios.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GrossDomesticProductEconomicVariableMember" xlink:href="bbplc-20251231.xsd#bbplc_GrossDomesticProductEconomicVariableMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GrossDomesticProductEconomicVariableMember" xlink:to="lab_bbplc_GrossDomesticProductEconomicVariableMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_StaffCompensationCosts_019c29a6-4828-7b70-88b4-9efed2018da9_totalLabel_en-US" xlink:label="lab_bbplc_StaffCompensationCosts" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total compensation costs</link:label>
    <link:label id="lab_bbplc_StaffCompensationCosts_label_en-US" xlink:label="lab_bbplc_StaffCompensationCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Staff Compensation Costs</link:label>
    <link:label id="lab_bbplc_StaffCompensationCosts_documentation_en-US" xlink:label="lab_bbplc_StaffCompensationCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of costs relating to staff compensation.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StaffCompensationCosts" xlink:href="bbplc-20251231.xsd#bbplc_StaffCompensationCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StaffCompensationCosts" xlink:to="lab_bbplc_StaffCompensationCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UnemploymentEconomicCoreVariableMember_019c29a6-48ae-7c6b-815d-0fe56249d7d1_terseLabel_en-US" xlink:label="lab_bbplc_UnemploymentEconomicCoreVariableMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unemployment</link:label>
    <link:label id="lab_bbplc_UnemploymentEconomicCoreVariableMember_label_en-US" xlink:label="lab_bbplc_UnemploymentEconomicCoreVariableMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unemployment, Economic Core Variable [Member]</link:label>
    <link:label id="lab_bbplc_UnemploymentEconomicCoreVariableMember_documentation_en-US" xlink:label="lab_bbplc_UnemploymentEconomicCoreVariableMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for unemployment, a key historic macroeconomic core variable. The unemployment is compared against the forecast paths of the probability weights for each scenario, demonstrating the lowest point in the Upside scenarios; 5 year average in Baseline; highest point in Downside scenarios.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UnemploymentEconomicCoreVariableMember" xlink:href="bbplc-20251231.xsd#bbplc_UnemploymentEconomicCoreVariableMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_UnemploymentEconomicCoreVariableMember" xlink:to="lab_bbplc_UnemploymentEconomicCoreVariableMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset_019c29a6-4931-7847-87e7-d5847868b7ab_terseLabel_en-US" xlink:label="lab_ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined benefit contributions paid</link:label>
    <link:label id="lab_ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease (increase) in net defined benefit liability (asset) resulting from contributions to plan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_ContributionsToPlanNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfProvisionMatrixExplanatory_019c29a6-4798-7f67-9341-aa6458e95ae1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfProvisionMatrixExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of loans and advances at amortised cost by product</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfProvisionMatrixExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfProvisionMatrixExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of provision matrix [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfProvisionMatrixExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfProvisionMatrixExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfProvisionMatrixExplanatory" xlink:to="lab_ifrs-full_DisclosureOfProvisionMatrixExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember_019c29a6-4798-7096-af6e-c3a6333be19d_terseLabel_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank PLC loans issued intra-group to Barclays PLC</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember_label_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Liabilities, Loans Issued Intra-Group From Barclays PLC [Member]</link:label>
    <link:label id="lab_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember_documentation_en-US" xlink:label="lab_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for subordinated liabilities, loans issued intra-group by parent, Barclays Bank PLC to ultimate parent of group, Barclays PLC.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember" xlink:href="bbplc-20251231.xsd#bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember" xlink:to="lab_bbplc_SubordinatedLiabilitiesLoansIssuedIntraGroupFromBarclaysPLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_019c29a6-4798-7a4a-869b-a6fc47cb09ac_terseLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool_019c29a6-49d1-7ac4-b8c3-0dc8adfcaf3a_terseLabel_en-US" xlink:label="lab_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of funding deficit secured by collateral pool</link:label>
    <link:label id="lab_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool_label_en-US" xlink:label="lab_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage Of Funding Deficit Secured By Collateral Pool</link:label>
    <link:label id="lab_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool_documentation_en-US" xlink:label="lab_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The percentage of funding deficit by which collateral pool has been put in place to provide security as it increases or decreases over time, and associated deficit recovery contributions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool" xlink:href="bbplc-20251231.xsd#bbplc_PercentageOfFundingDeficitSecuredByCollateralPool"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool" xlink:to="lab_bbplc_PercentageOfFundingDeficitSecuredByCollateralPool" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativeFinancialAssetsPercentage_019c29a6-48ae-7fde-bcd4-469c5db4f2d5_terseLabel_en-US" xlink:label="lab_bbplc_DerivativeFinancialAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial instruments, percentage</link:label>
    <link:label id="lab_bbplc_DerivativeFinancialAssetsPercentage_label_en-US" xlink:label="lab_bbplc_DerivativeFinancialAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Financial Assets, Percentage</link:label>
    <link:label id="lab_bbplc_DerivativeFinancialAssetsPercentage_documentation_en-US" xlink:label="lab_bbplc_DerivativeFinancialAssetsPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of financial assets classified as derivative instruments, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativeFinancialAssetsPercentage" xlink:href="bbplc-20251231.xsd#bbplc_DerivativeFinancialAssetsPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativeFinancialAssetsPercentage" xlink:to="lab_bbplc_DerivativeFinancialAssetsPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ECLFromBenchmarkedExposuresAndOthersMember_019c29a6-48ae-717a-9850-11ce6e5559d6_terseLabel_en-US" xlink:label="lab_bbplc_ECLFromBenchmarkedExposuresAndOthersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ECL from benchmarked exposures and others</link:label>
    <link:label id="lab_bbplc_ECLFromBenchmarkedExposuresAndOthersMember_label_en-US" xlink:label="lab_bbplc_ECLFromBenchmarkedExposuresAndOthersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ECL From Benchmarked Exposures And Others [Member]</link:label>
    <link:label id="lab_bbplc_ECLFromBenchmarkedExposuresAndOthersMember_documentation_en-US" xlink:label="lab_bbplc_ECLFromBenchmarkedExposuresAndOthersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for expected credit losses from non-modelled and other management adjustments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ECLFromBenchmarkedExposuresAndOthersMember" xlink:href="bbplc-20251231.xsd#bbplc_ECLFromBenchmarkedExposuresAndOthersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ECLFromBenchmarkedExposuresAndOthersMember" xlink:to="lab_bbplc_ECLFromBenchmarkedExposuresAndOthersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentsDomain_019c29a6-4930-74f0-ab1d-efa8f937a391_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [domain]</link:label>
    <link:label id="lab_ifrs-full_SegmentsDomain_label_en-US" xlink:label="lab_ifrs-full_SegmentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsDomain" xlink:to="lab_ifrs-full_SegmentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_019c29a6-48ae-73c6-8d88-05bf9a46f66e_periodStartLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at beginning of year</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_019c29a6-48ae-7ec5-aaa0-e9ba4e0ab77f_periodEndLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at end of year</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_019c29a6-48ae-7963-9701-ce644a7afb4d_totalLabel_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at end of year</link:label>
    <link:label id="lab_ifrs-full_CashAndCashEquivalents_label_en-US" xlink:label="lab_ifrs-full_CashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashAndCashEquivalents" xlink:to="lab_ifrs-full_CashAndCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory_019c29a6-4931-7261-a34d-1eb574257c17_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for reverse repurchase and repurchase agreements including other similar lending and borrowing</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for repurchase and reverse repurchase agreements [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForRepurchaseAndReverseRepurchaseAgreementsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GrowthRateMeasurementInputMember_019c29a6-49d1-7241-a37b-195944ed7257_terseLabel_en-US" xlink:label="lab_bbplc_GrowthRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Terminal growth rate</link:label>
    <link:label id="lab_bbplc_GrowthRateMeasurementInputMember_label_en-US" xlink:label="lab_bbplc_GrowthRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Growth Rate, Measurement Input [Member]</link:label>
    <link:label id="lab_bbplc_GrowthRateMeasurementInputMember_documentation_en-US" xlink:label="lab_bbplc_GrowthRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Growth Rate, Measurement Input</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_GrowthRateMeasurementInputMember" xlink:href="bbplc-20251231.xsd#bbplc_GrowthRateMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_GrowthRateMeasurementInputMember" xlink:to="lab_bbplc_GrowthRateMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities_019c29a6-4931-7037-8bdf-0132e1c10e79_negatedLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accumulated fair value adjustment on items no longer in a hedge relationship</link:label>
    <link:label id="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities_label_en-US" xlink:label="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated fair value hedge adjustment remaining in statement of financial position for hedged item that ceased to be adjusted for hedging gains and losses, liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities" xlink:to="lab_ifrs-full_AccumulatedFairValueHedgeAdjustmentRemainingInStatementOfFinancialPositionForHedgedItemThatCeasedToBeAdjustedForHedgingGainsAndLossesLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_019c29a6-49d1-7600-ba84-fc1aa17c90f2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about borrowings [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_WithinElevenToTwentyYearsMember_019c29a6-49d1-7706-a9fe-1f509bda1f7e_terseLabel_en-US" xlink:label="lab_bbplc_WithinElevenToTwentyYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Within eleven to twenty years</link:label>
    <link:label id="lab_bbplc_WithinElevenToTwentyYearsMember_label_en-US" xlink:label="lab_bbplc_WithinElevenToTwentyYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Within Eleven To Twenty Years [Member]</link:label>
    <link:label id="lab_bbplc_WithinElevenToTwentyYearsMember_documentation_en-US" xlink:label="lab_bbplc_WithinElevenToTwentyYearsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for expiration of carryforward within 11 to 20 years.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_WithinElevenToTwentyYearsMember" xlink:href="bbplc-20251231.xsd#bbplc_WithinElevenToTwentyYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_WithinElevenToTwentyYearsMember" xlink:to="lab_bbplc_WithinElevenToTwentyYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract_019c29a6-4798-7cc9-b0b4-f12f87124d3e_terseLabel_en-US" xlink:label="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements [abstract]</link:label>
    <link:label id="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract_label_en-US" xlink:label="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net financial assets subject to offsetting, enforceable master netting arrangements or similar agreements [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract" xlink:to="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BusinessCombinationsAxis_019c29a6-49d1-7d20-88ab-8cdd17340036_terseLabel_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business combinations [axis]</link:label>
    <link:label id="lab_ifrs-full_BusinessCombinationsAxis_label_en-US" xlink:label="lab_ifrs-full_BusinessCombinationsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business combinations [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BusinessCombinationsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BusinessCombinationsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BusinessCombinationsAxis" xlink:to="lab_ifrs-full_BusinessCombinationsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Provisions_019c29a6-49d1-71aa-9857-1d7d50f82b4f_terseLabel_en-US" xlink:label="lab_ifrs-full_Provisions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provisions</link:label>
    <link:label id="lab_ifrs-full_Provisions_019c29a6-49d1-7ba7-be43-7fdfb746d061_periodStartLabel_en-US" xlink:label="lab_ifrs-full_Provisions" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Provisions, beginning balance</link:label>
    <link:label id="lab_ifrs-full_Provisions_019c29a6-49d1-72f9-b267-337cb6f4f405_periodEndLabel_en-US" xlink:label="lab_ifrs-full_Provisions" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Provisions, ending balance</link:label>
    <link:label id="lab_ifrs-full_Provisions_label_en-US" xlink:label="lab_ifrs-full_Provisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Provisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Provisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Provisions" xlink:to="lab_ifrs-full_Provisions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LandAndBuildingsMember_019c29a6-4798-7b6f-9760-3c987e1da340_verboseLabel_en-US" xlink:label="lab_ifrs-full_LandAndBuildingsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Property</link:label>
    <link:label id="lab_ifrs-full_LandAndBuildingsMember_label_en-US" xlink:label="lab_ifrs-full_LandAndBuildingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Land and buildings [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LandAndBuildingsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LandAndBuildingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LandAndBuildingsMember" xlink:to="lab_ifrs-full_LandAndBuildingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashAndCashEquivalentsCompriseAbstract_019c29a6-4931-7b40-af46-2fd46c33c255_terseLabel_en-US" xlink:label="lab_bbplc_CashAndCashEquivalentsCompriseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents comprise:</link:label>
    <link:label id="lab_bbplc_CashAndCashEquivalentsCompriseAbstract_label_en-US" xlink:label="lab_bbplc_CashAndCashEquivalentsCompriseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash And Cash Equivalents Comprise: [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashAndCashEquivalentsCompriseAbstract" xlink:href="bbplc-20251231.xsd#bbplc_CashAndCashEquivalentsCompriseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashAndCashEquivalentsCompriseAbstract" xlink:to="lab_bbplc_CashAndCashEquivalentsCompriseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SubordinatedFloatingRateNotesDue2040Member_019c29a6-4798-742e-90de-1b74dc33d4d1_terseLabel_en-US" xlink:label="lab_bbplc_SubordinatedFloatingRateNotesDue2040Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated Floating Rate Notes (EUR 68m)</link:label>
    <link:label id="lab_bbplc_SubordinatedFloatingRateNotesDue2040Member_label_en-US" xlink:label="lab_bbplc_SubordinatedFloatingRateNotesDue2040Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Floating Rate Notes, Due 2040 [Member]</link:label>
    <link:label id="lab_bbplc_SubordinatedFloatingRateNotesDue2040Member_documentation_en-US" xlink:label="lab_bbplc_SubordinatedFloatingRateNotesDue2040Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Subordinated Floating Rate Notes (EUR 68m) maturing in 2040, denominated in Euro currency.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SubordinatedFloatingRateNotesDue2040Member" xlink:href="bbplc-20251231.xsd#bbplc_SubordinatedFloatingRateNotesDue2040Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SubordinatedFloatingRateNotesDue2040Member" xlink:to="lab_bbplc_SubordinatedFloatingRateNotesDue2040Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_019c29a6-49d1-7aba-9539-641d12bd38e7_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, assets [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in fair value measurement, assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInFairValueMeasurementAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductsAndServicesDomain_019c29a6-4828-76be-9190-c66cc248767e_terseLabel_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:label id="lab_srt_ProductsAndServicesDomain_label_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductsAndServicesDomain" xlink:to="lab_srt_ProductsAndServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_InterestExpenseOnDepositsAtAmortisedCost_019c29a6-4931-73d2-840c-f10cb8453748_negatedLabel_en-US" xlink:label="lab_bbplc_InterestExpenseOnDepositsAtAmortisedCost" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Deposits at amortised cost from banks and customers</link:label>
    <link:label id="lab_bbplc_InterestExpenseOnDepositsAtAmortisedCost_label_en-US" xlink:label="lab_bbplc_InterestExpenseOnDepositsAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense On Deposits At Amortised Cost</link:label>
    <link:label id="lab_bbplc_InterestExpenseOnDepositsAtAmortisedCost_documentation_en-US" xlink:label="lab_bbplc_InterestExpenseOnDepositsAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of interest expense on deposits at amortised cost.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_InterestExpenseOnDepositsAtAmortisedCost" xlink:href="bbplc-20251231.xsd#bbplc_InterestExpenseOnDepositsAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_InterestExpenseOnDepositsAtAmortisedCost" xlink:to="lab_bbplc_InterestExpenseOnDepositsAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember_019c29a6-4828-78ff-b329-da23c710f8fe_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.0 to 0.05%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Zero To Point Zero Five Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale retail lending with a default grade betweeen 1 and 3. A probability of default between 0.0% and .05%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultZeroToPointZeroFivePercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProbabilityOfDefaultDomain_019c29a6-48ae-7402-bc2f-b9ce7d5e2000_terseLabel_en-US" xlink:label="lab_ifrs-full_ProbabilityOfDefaultDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Probability of default [domain]</link:label>
    <link:label id="lab_ifrs-full_ProbabilityOfDefaultDomain_label_en-US" xlink:label="lab_ifrs-full_ProbabilityOfDefaultDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability of default [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProbabilityOfDefaultDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProbabilityOfDefaultDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProbabilityOfDefaultDomain" xlink:to="lab_ifrs-full_ProbabilityOfDefaultDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_019c29a6-4798-79b4-8dab-8aa95c34f44c_terseLabel_en-US" xlink:label="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of contractual maturity of financial liabilities - undiscounted</link:label>
    <link:label id="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities_label_en-US" xlink:label="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of maturity analysis for non-derivative financial liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:to="lab_ifrs-full_MaturityAnalysisForNonderivativeFinancialLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_019c29a6-4930-7d57-9670-4781ff33115f_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss [abstract]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through profit or loss [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossAbstract"/>
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    <link:label id="lab_ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_019c29a6-4930-77e6-9912-6962492da6e6_terseLabel_en-US" xlink:label="lab_ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Inflation rate (RPI)</link:label>
    <link:label id="lab_ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_label_en-US" xlink:label="lab_ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Actuarial assumption of expected rates of inflation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation"/>
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    <link:label id="lab_ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_019c29a6-4827-7fb2-9c42-948f19454f13_negatedLabel_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less: expired in the year (in shares)</link:label>
    <link:label id="lab_ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_label_en-US" xlink:label="lab_ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of share options expired in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement"/>
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    <link:label id="lab_ifrs-full_AdjustmentsToReconcileProfitLossAttributableToOwnersOfParentToNumeratorUsedInCalculatingBasicEarningsPerShare_019c29a6-49d1-7853-8037-bfed8b12e801_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsToReconcileProfitLossAttributableToOwnersOfParentToNumeratorUsedInCalculatingBasicEarningsPerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other equity instrument holders</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsToReconcileProfitLossAttributableToOwnersOfParentToNumeratorUsedInCalculatingBasicEarningsPerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsToReconcileProfitLossAttributableToOwnersOfParentToNumeratorUsedInCalculatingBasicEarningsPerShare"/>
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    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory_019c29a6-4931-76c4-b221-e279225c97a6_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of hedging instruments which are carried on the Group's balance sheet</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsExplanatory"/>
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    <link:label id="lab_ifrs-full_InterestRateRiskMember_019c29a6-4931-7f75-b310-5409174eca09_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate risk</link:label>
    <link:label id="lab_ifrs-full_InterestRateRiskMember_019c29a6-4931-76db-b8a9-1de3fe270218_verboseLabel_en-US" xlink:label="lab_ifrs-full_InterestRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest rate derivatives</link:label>
    <link:label id="lab_ifrs-full_InterestRateRiskMember_label_en-US" xlink:label="lab_ifrs-full_InterestRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest rate risk [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRateRiskMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRateRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRateRiskMember" xlink:to="lab_ifrs-full_InterestRateRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019c29a6-48ae-7f39-8bb7-019000ee52f4_negatedTotalLabel_en-US" xlink:label="lab_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent_label_en-US" xlink:label="lab_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Financial Liabilities And Repurchase Agreements And Cash Collateral On Securities Lent</link:label>
    <link:label id="lab_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent_documentation_en-US" xlink:label="lab_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivative Financial Liabilities And Repurchase Agreements And Cash Collateral On Securities Lent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:href="bbplc-20251231.xsd#bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:to="lab_bbplc_DerivativeFinancialLiabilitiesAndRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ManagementAndAdvisoryServicesMember_019c29a6-4828-7afd-a6a6-761c1a08a3a9_terseLabel_en-US" xlink:label="lab_bbplc_ManagementAndAdvisoryServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Advisory</link:label>
    <link:label id="lab_bbplc_ManagementAndAdvisoryServicesMember_label_en-US" xlink:label="lab_bbplc_ManagementAndAdvisoryServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Management And Advisory Services [Member]</link:label>
    <link:label id="lab_bbplc_ManagementAndAdvisoryServicesMember_documentation_en-US" xlink:label="lab_bbplc_ManagementAndAdvisoryServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for fees from asset management services and advisory services related to mergers, acquisitions and financial restructuring.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ManagementAndAdvisoryServicesMember" xlink:href="bbplc-20251231.xsd#bbplc_ManagementAndAdvisoryServicesMember"/>
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    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract_019c29a6-49d1-7705-8b95-f29724d2f5b1_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income [abstract]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeAbstract"/>
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    <link:label id="lab_ifrs-full_RevenueFromDividends_019c29a6-4798-755c-bd57-7c22520bb792_terseLabel_en-US" xlink:label="lab_ifrs-full_RevenueFromDividends" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividend Income</link:label>
    <link:label id="lab_ifrs-full_RevenueFromDividends_label_en-US" xlink:label="lab_ifrs-full_RevenueFromDividends" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividend income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueFromDividends" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RevenueFromDividends"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueFromDividends" xlink:to="lab_ifrs-full_RevenueFromDividends" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member_019c29a6-4931-73c9-9634-7e50ca029ab3_terseLabel_en-US" xlink:label="lab_bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">3.811% Fixed Rate Resetting Subordinated Callable Notes (USD 1,000m)</link:label>
    <link:label id="lab_bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member_label_en-US" xlink:label="lab_bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">3.811% Fixed Rate Resetting Subordinated Callable Notes, Due 2042 [Member]</link:label>
    <link:label id="lab_bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member_documentation_en-US" xlink:label="lab_bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">3.811% Fixed Rate Resetting Subordinated Callable Notes, Due 2042</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member" xlink:href="bbplc-20251231.xsd#bbplc_A3811FixedRateResettingSubordinatedCallableNotesDue2042Member"/>
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    <link:label id="lab_bbplc_OutsourcingCosts_019c29a6-48ae-7d89-9f51-8275b6e758f2_terseLabel_en-US" xlink:label="lab_bbplc_OutsourcingCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Outsourcing</link:label>
    <link:label id="lab_bbplc_OutsourcingCosts_label_en-US" xlink:label="lab_bbplc_OutsourcingCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outsourcing Costs</link:label>
    <link:label id="lab_bbplc_OutsourcingCosts_documentation_en-US" xlink:label="lab_bbplc_OutsourcingCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of costs relating to outsourcing costs.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OutsourcingCosts" xlink:href="bbplc-20251231.xsd#bbplc_OutsourcingCosts"/>
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    <link:label id="lab_bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember_019c29a6-4931-78a0-8672-267104b798c7_terseLabel_en-US" xlink:label="lab_bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">US residential and commercial mortgage-related activity and litigation</link:label>
    <link:label id="lab_bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember_label_en-US" xlink:label="lab_bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Residential And Commercial Mortgage-Related Activity And Litigation [Member]</link:label>
    <link:label id="lab_bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember_documentation_en-US" xlink:label="lab_bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Various investigations and civil litigation relating to secondary market trading of US residential mortgage-backed securities (RMBS) and US commercial mortgage-backed securities (CMBS).</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember" xlink:href="bbplc-20251231.xsd#bbplc_USResidentialAndCommercialMortgageRelatedActivityAndLitigationMember"/>
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    <link:label id="lab_ifrs-full_LaterThanFiveYearsMember_019c29a6-4828-7e4f-b59a-3c8198a8ca7a_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Over five years</link:label>
    <link:label id="lab_ifrs-full_LaterThanFiveYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanFiveYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than five years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanFiveYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanFiveYearsMember"/>
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    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsDomain_019c29a6-4828-7038-9443-578e79761e2b_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of financial assets [domain]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfFinancialAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of financial assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfFinancialAssetsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:to="lab_ifrs-full_ClassesOfFinancialAssetsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17_019c29a6-4828-73b0-a158-8ab58a65d539_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in profit for the year due to reasonably possible decrease</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInProfitLossDueToReasonablyPossibleDecreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in profit (loss) due to reasonably possible decrease in risk variable that arises from contracts within scope of IFRS 17</link:label>
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    <link:label id="lab_ifrs-full_ItemsInCourseOfTransmissionToOtherBanks_019c29a6-4931-7fc1-9e08-db26715c9d36_terseLabel_en-US" xlink:label="lab_ifrs-full_ItemsInCourseOfTransmissionToOtherBanks" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Items in the course of collection due to other banks</link:label>
    <link:label id="lab_ifrs-full_ItemsInCourseOfTransmissionToOtherBanks_label_en-US" xlink:label="lab_ifrs-full_ItemsInCourseOfTransmissionToOtherBanks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Items in course of transmission to other banks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ItemsInCourseOfTransmissionToOtherBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ItemsInCourseOfTransmissionToOtherBanks"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ItemsInCourseOfTransmissionToOtherBanks" xlink:to="lab_ifrs-full_ItemsInCourseOfTransmissionToOtherBanks" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialStatementLocationMember_019c29a6-48ae-7c8e-b3d2-028a34b0f829_terseLabel_en-US" xlink:label="lab_bbplc_FinancialStatementLocationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial statement location [Member]</link:label>
    <link:label id="lab_bbplc_FinancialStatementLocationMember_label_en-US" xlink:label="lab_bbplc_FinancialStatementLocationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Statement Location [Member]</link:label>
    <link:label id="lab_bbplc_FinancialStatementLocationMember_documentation_en-US" xlink:label="lab_bbplc_FinancialStatementLocationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the financial statement location. It also represents the standard value for the 'Financial statement location' axis if no other member is used.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialStatementLocationMember" xlink:href="bbplc-20251231.xsd#bbplc_FinancialStatementLocationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialStatementLocationMember" xlink:to="lab_bbplc_FinancialStatementLocationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssuesFairValueMeasurementAssets_019c29a6-49d1-7150-bcf8-7bcbe9eed002_terseLabel_en-US" xlink:label="lab_ifrs-full_IssuesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issues, fair value measurement, assets</link:label>
    <link:label id="lab_ifrs-full_IssuesFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_IssuesFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issues, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssuesFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssuesFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssuesFairValueMeasurementAssets" xlink:to="lab_ifrs-full_IssuesFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_019c29a6-48ae-7e05-9c02-c0c2a1cebda3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of intangible assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfIntangibleAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfIntangibleAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LicencesAndOtherMember_019c29a6-4827-7816-bd73-5dccb14fabe3_terseLabel_en-US" xlink:label="lab_bbplc_LicencesAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Licences and other</link:label>
    <link:label id="lab_bbplc_LicencesAndOtherMember_label_en-US" xlink:label="lab_bbplc_LicencesAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Licences And Other [Member]</link:label>
    <link:label id="lab_bbplc_LicencesAndOtherMember_documentation_en-US" xlink:label="lab_bbplc_LicencesAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for a class of intangible assets representing the right to use certain intangible assets owned by another entity, including other.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LicencesAndOtherMember" xlink:href="bbplc-20251231.xsd#bbplc_LicencesAndOtherMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LicencesAndOtherMember" xlink:to="lab_bbplc_LicencesAndOtherMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostMember_019c29a6-48ae-7891-aafa-9096777dcb20_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortised cost</link:label>
    <link:label id="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostMember_label_en-US" xlink:label="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial liabilities at amortised cost, class [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCostMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialLiabilitiesAtAmortisedCostMember" xlink:to="lab_ifrs-full_FinancialLiabilitiesAtAmortisedCostMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_StatementOfIFRSCompliance_019c29a6-49d1-7b85-ab82-117bb77cb4e2_terseLabel_en-US" xlink:label="lab_ifrs-full_StatementOfIFRSCompliance" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Compliance with International Financial Reporting Standards</link:label>
    <link:label id="lab_ifrs-full_StatementOfIFRSCompliance_label_en-US" xlink:label="lab_ifrs-full_StatementOfIFRSCompliance" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of IFRS compliance [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_StatementOfIFRSCompliance" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_StatementOfIFRSCompliance"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_StatementOfIFRSCompliance" xlink:to="lab_ifrs-full_StatementOfIFRSCompliance" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestRateBenchmarksAxis_019c29a6-4931-7f23-bc0a-9f7b4e347e63_terseLabel_en-US" xlink:label="lab_ifrs-full_InterestRateBenchmarksAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate benchmarks [axis]</link:label>
    <link:label id="lab_ifrs-full_InterestRateBenchmarksAxis_label_en-US" xlink:label="lab_ifrs-full_InterestRateBenchmarksAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest rate benchmarks [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestRateBenchmarksAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestRateBenchmarksAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestRateBenchmarksAxis" xlink:to="lab_ifrs-full_InterestRateBenchmarksAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ActiveMembersMember_019c29a6-4798-78db-9431-7da017ebce81_terseLabel_en-US" xlink:label="lab_bbplc_ActiveMembersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Active members</link:label>
    <link:label id="lab_bbplc_ActiveMembersMember_label_en-US" xlink:label="lab_bbplc_ActiveMembersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Active Members [Member]</link:label>
    <link:label id="lab_bbplc_ActiveMembersMember_documentation_en-US" xlink:label="lab_bbplc_ActiveMembersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Active Members</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ActiveMembersMember" xlink:href="bbplc-20251231.xsd#bbplc_ActiveMembersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ActiveMembersMember" xlink:to="lab_bbplc_ActiveMembersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable_019c29a6-4828-73b5-9b9c-6dee769302c3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in intangible assets and goodwill [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet_019c29a6-4931-77ef-bd0e-233dc11e71db_negatedLabel_en-US" xlink:label="lab_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Sales, fair value measurement, assets (liabilities) net</link:label>
    <link:label id="lab_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet_label_en-US" xlink:label="lab_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales, Fair Value Measurement, Assets (Liabilities) Net</link:label>
    <link:label id="lab_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet_documentation_en-US" xlink:label="lab_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The decrease in the fair value measurement of assets and liabilities resulting from sales of those assets and liabilities. [Refer: At fair value [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet" xlink:href="bbplc-20251231.xsd#bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet" xlink:to="lab_bbplc_SalesFairValueMeasurementAssetsLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock_019c29a6-4828-7a04-9192-363229fd27a9_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation between the actual tax charge and the corporate tax rate</link:label>
    <link:label id="lab_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Reconciliation Of Actual Tax Rate To Corporate Tax Rate [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of the reconciliation of the actual tax charge and the tax charge that would result from applying the standard UK corporation tax rate to the entity's profit before tax.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock" xlink:to="lab_bbplc_DisclosureOfReconciliationOfActualTaxRateToCorporateTaxRateTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CapitalisationRateMeasurementInputMember_019c29a6-49d1-717b-a4c6-95a885447c9d_terseLabel_en-US" xlink:label="lab_ifrs-full_CapitalisationRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allocated capital rate</link:label>
    <link:label id="lab_ifrs-full_CapitalisationRateMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_CapitalisationRateMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capitalisation rate, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CapitalisationRateMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalisationRateMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CapitalisationRateMeasurementInputMember" xlink:to="lab_ifrs-full_CapitalisationRateMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestExpenseOnLeaseLiabilities_019c29a6-49d1-7af7-aff2-c07b22474f76_verboseLabel_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest expense</link:label>
    <link:label id="lab_ifrs-full_InterestExpenseOnLeaseLiabilities_label_en-US" xlink:label="lab_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest expense on lease liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InterestExpenseOnLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:to="lab_ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_019c29a6-4930-7ba0-b2e8-24ef69aff94d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Critical accounting estimates and judgements</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of accounting judgements and estimates [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAccountingJudgementsAndEstimatesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AuditorName_019c29a6-4931-72ed-9340-4cc488b35172_terseLabel_en-US" xlink:label="lab_dei_AuditorName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Auditor Name</link:label>
    <link:label id="lab_dei_AuditorName_label_en-US" xlink:label="lab_dei_AuditorName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AuditorName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AuditorName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AuditorName" xlink:to="lab_dei_AuditorName" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock_019c29a6-4828-7745-852b-4e13765d2c09_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of contingent liabilities and commitments</link:label>
    <link:label id="lab_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Commitments And Contingent Liabilities [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of commitments and contingent liabilities of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock" xlink:to="lab_bbplc_DisclosureOfCommitmentsAndContingentLiabilitiesTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsDomain_019c29a6-4930-7d16-bce6-24a6d5021b8e_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment consolidation items [domain]</link:label>
    <link:label id="lab_ifrs-full_SegmentConsolidationItemsDomain_label_en-US" xlink:label="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment consolidation items [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentConsolidationItemsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentConsolidationItemsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentConsolidationItemsDomain" xlink:to="lab_ifrs-full_SegmentConsolidationItemsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis_019c29a6-4828-7196-9887-710c097ea988_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities measured at fair value and issued with inseparable third-party credit enhancement [axis]</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities measured at fair value and issued with inseparable third-party credit enhancement [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis" xlink:to="lab_ifrs-full_LiabilitiesMeasuredAtFairValueAndIssuedWithInseparableThirdpartyCreditEnhancementAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IndependentDirectorMember_019c29a6-49d1-7149-a16e-95ea09a713cb_terseLabel_en-US" xlink:label="lab_bbplc_IndependentDirectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Independent director</link:label>
    <link:label id="lab_bbplc_IndependentDirectorMember_label_en-US" xlink:label="lab_bbplc_IndependentDirectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Independent Director [Member]</link:label>
    <link:label id="lab_bbplc_IndependentDirectorMember_documentation_en-US" xlink:label="lab_bbplc_IndependentDirectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Independent Director</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IndependentDirectorMember" xlink:href="bbplc-20251231.xsd#bbplc_IndependentDirectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IndependentDirectorMember" xlink:to="lab_bbplc_IndependentDirectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DatedSubordinatedLiabilities_019c29a6-4930-7ea9-a9bb-a39bdf37fc11_terseLabel_en-US" xlink:label="lab_ifrs-full_DatedSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dated subordinated liabilities</link:label>
    <link:label id="lab_ifrs-full_DatedSubordinatedLiabilities_label_en-US" xlink:label="lab_ifrs-full_DatedSubordinatedLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dated subordinated liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DatedSubordinatedLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DatedSubordinatedLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DatedSubordinatedLiabilities" xlink:to="lab_ifrs-full_DatedSubordinatedLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory_019c29a6-4828-78bb-b27e-526bc56eeea5_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of interests in unconsolidated structured entities and nature of interests</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of unconsolidated structured entities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AverageNumberOfEmployeesFullTimeEquivalent_019c29a6-4828-7abb-bd11-b3f15f319616_terseLabel_en-US" xlink:label="lab_bbplc_AverageNumberOfEmployeesFullTimeEquivalent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average number of employees (full time equivalent)</link:label>
    <link:label id="lab_bbplc_AverageNumberOfEmployeesFullTimeEquivalent_label_en-US" xlink:label="lab_bbplc_AverageNumberOfEmployeesFullTimeEquivalent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Average Number Of Employees, Full Time Equivalent</link:label>
    <link:label id="lab_bbplc_AverageNumberOfEmployeesFullTimeEquivalent_documentation_en-US" xlink:label="lab_bbplc_AverageNumberOfEmployeesFullTimeEquivalent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Average Number Of Employees, Full Time Equivalent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AverageNumberOfEmployeesFullTimeEquivalent" xlink:href="bbplc-20251231.xsd#bbplc_AverageNumberOfEmployeesFullTimeEquivalent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AverageNumberOfEmployeesFullTimeEquivalent" xlink:to="lab_bbplc_AverageNumberOfEmployeesFullTimeEquivalent" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BasisRiskMember_019c29a6-48ae-7523-8ce3-1e12f4770233_terseLabel_en-US" xlink:label="lab_bbplc_BasisRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basis risk</link:label>
    <link:label id="lab_bbplc_BasisRiskMember_label_en-US" xlink:label="lab_bbplc_BasisRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basis Risk [Member]</link:label>
    <link:label id="lab_bbplc_BasisRiskMember_documentation_en-US" xlink:label="lab_bbplc_BasisRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the basis risk factor.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BasisRiskMember" xlink:href="bbplc-20251231.xsd#bbplc_BasisRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BasisRiskMember" xlink:to="lab_bbplc_BasisRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IPathSeriesBCarbonETNMember_019c29a6-4798-75ee-b8c5-f19bad1bb734_terseLabel_en-US" xlink:label="lab_bbplc_IPathSeriesBCarbonETNMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B Carbon ETN</link:label>
    <link:label id="lab_bbplc_IPathSeriesBCarbonETNMember_label_en-US" xlink:label="lab_bbplc_IPathSeriesBCarbonETNMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B Carbon ETN [Member]</link:label>
    <link:label id="lab_bbplc_IPathSeriesBCarbonETNMember_documentation_en-US" xlink:label="lab_bbplc_IPathSeriesBCarbonETNMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B Carbon ETN</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IPathSeriesBCarbonETNMember" xlink:href="bbplc-20251231.xsd#bbplc_IPathSeriesBCarbonETNMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IPathSeriesBCarbonETNMember" xlink:to="lab_bbplc_IPathSeriesBCarbonETNMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NotInternallyGeneratedMember_019c29a6-49d1-7408-bc13-ba33e61d8cca_terseLabel_en-US" xlink:label="lab_ifrs-full_NotInternallyGeneratedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_ifrs-full_NotInternallyGeneratedMember_label_en-US" xlink:label="lab_ifrs-full_NotInternallyGeneratedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Not internally generated [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NotInternallyGeneratedMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NotInternallyGeneratedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NotInternallyGeneratedMember" xlink:to="lab_ifrs-full_NotInternallyGeneratedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BdcFinanceLlcMember_019c29a6-4798-7f30-b550-c0f60d4771c5_terseLabel_en-US" xlink:label="lab_bbplc_BdcFinanceLlcMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">BDC Finance LLC</link:label>
    <link:label id="lab_bbplc_BdcFinanceLlcMember_label_en-US" xlink:label="lab_bbplc_BdcFinanceLlcMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">BDC Finance LLC [Member]</link:label>
    <link:label id="lab_bbplc_BdcFinanceLlcMember_documentation_en-US" xlink:label="lab_bbplc_BdcFinanceLlcMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">BDC Finance L.L.C. (BDC) has filed a complaint against Barclays Bank PLC alleging breach of contract in connection with a portfolio of total return swaps governed by an ISDA Master Agreement (collectively, the Agreement).</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BdcFinanceLlcMember" xlink:href="bbplc-20251231.xsd#bbplc_BdcFinanceLlcMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BdcFinanceLlcMember" xlink:to="lab_bbplc_BdcFinanceLlcMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GoodwillMember_019c29a6-4798-774e-a183-9af6a1e4596e_terseLabel_en-US" xlink:label="lab_ifrs-full_GoodwillMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_ifrs-full_GoodwillMember_label_en-US" xlink:label="lab_ifrs-full_GoodwillMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GoodwillMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GoodwillMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GoodwillMember" xlink:to="lab_ifrs-full_GoodwillMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAbstract_019c29a6-49d1-72e0-b93d-0e8b6e4a8965_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:to="lab_ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OtherEquityInterestMember_019c29a6-4828-7f33-8dd2-9c22679ce22b_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherEquityInterestMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other equity instruments</link:label>
    <link:label id="lab_ifrs-full_OtherEquityInterestMember_label_en-US" xlink:label="lab_ifrs-full_OtherEquityInterestMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other equity interest [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherEquityInterestMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherEquityInterestMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherEquityInterestMember" xlink:to="lab_ifrs-full_OtherEquityInterestMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_019c29a6-4798-7be8-93af-6f433b52d065_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contractual life</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Option life, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfOptionLifeShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging_019c29a6-48ae-737e-9e70-f667df84c351_negatedTerseLabel_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net gains/(losses) due to fair value hedging</link:label>
    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging_019c29a6-48ae-79d5-972c-0e45101a3474_negatedLabel_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net gains/(losses) due to fair value hedging</link:label>
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    <link:label id="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging_documentation_en-US" xlink:label="lab_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of reclassification adjustments due to impairment of financial assets measured at fair value through other comprehensive income, before tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Financial assets measured at fair value through other comprehensive income; Other comprehensive income]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging" xlink:href="bbplc-20251231.xsd#bbplc_ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTaxDueToFairValueHedging"/>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_019c29a6-49d1-7bb1-9eac-e347b1fb9f55_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash from operating activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_019c29a6-4827-7632-8467-4fca3358f3f2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_019c29a6-48ae-76f1-b0fe-4da0bd192857_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Related Undertakings</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of interests in other entities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInterestsInOtherEntitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_VestingPeriodsDomain_019c3071-4b5c-7076-b60a-c7ee65627494_terseLabel_en-US" xlink:label="lab_bbplc_VestingPeriodsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting, Periods [Domain]</link:label>
    <link:label id="lab_bbplc_VestingPeriodsDomain_label_en-US" xlink:label="lab_bbplc_VestingPeriodsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting, Periods [Domain]</link:label>
    <link:label id="lab_bbplc_VestingPeriodsDomain_documentation_en-US" xlink:label="lab_bbplc_VestingPeriodsDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Vesting, Periods [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VestingPeriodsDomain" xlink:href="bbplc-20251231.xsd#bbplc_VestingPeriodsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_VestingPeriodsDomain" xlink:to="lab_bbplc_VestingPeriodsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalYearFocus_019c29a6-4931-718e-889a-ba593807cfed_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalYearFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentFiscalYearFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus" xlink:to="lab_dei_DocumentFiscalYearFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember_019c29a6-4930-7471-bbe0-c18b201eb809_terseLabel_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Life expectancy at 60 for current pensioners, females</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember_label_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Life Expectancy At 60 For Current Pensioners, Females [Member]</link:label>
    <link:label id="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember_documentation_en-US" xlink:label="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for life expectancy of females at 60 for current pensioners, used as actuarial assumptions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember" xlink:href="bbplc-20251231.xsd#bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember" xlink:to="lab_bbplc_LifeExpectancyAt60ForCurrentPensionersFemalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011_019c29a6-48ae-765a-ba25-d58531db6cf9_terseLabel_en-US" xlink:label="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liability arising from cash-settled share-based payments transactions</link:label>
    <link:label id="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011_label_en-US" xlink:label="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities from share-based payment transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:to="lab_ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract_019c29a6-49d1-7298-86f9-24f26b4bb013_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of profit before tax to net cash flows from operating activities:</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile profit (loss) [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForReconcileProfitLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:to="lab_ifrs-full_AdjustmentsForReconcileProfitLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock_019c29a6-49d1-7b90-a675-69ea0c513137_terseLabel_en-US" xlink:label="lab_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for trading portfolio assets and liabilities</link:label>
    <link:label id="lab_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock_label_en-US" xlink:label="lab_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description Of Accounting Policy For Trading Portfolio Assets And Liabilities [Policy Text Block]</link:label>
    <link:label id="lab_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock_documentation_en-US" xlink:label="lab_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The description of the entity's accounting policy for trading portfolio assets and liabilities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock" xlink:to="lab_bbplc_DescriptionOfAccountingPolicyForTradingPortfolioAssetsAndLiabilitiesPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities_019c29a6-4931-7ee7-bf04-ae726eaded01_terseLabel_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unfavorable changes</link:label>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities_label_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Decrease In Fair Value Measurement Due To Change In One Or More Unobservable Inputs To Reflect Reasonably Possible Alternative Assumptions, Assets (Liabilities)</link:label>
    <link:label id="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of decrease in the fair value measurement of assets and liabilities due to a change in one or more unobservable inputs to reflect reasonably possible alternative assumptions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:to="lab_bbplc_DecreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CashAndBankBalancesAtCentralBanksPercentage_019c29a6-4930-70c8-a367-eabfa4f9f74d_terseLabel_en-US" xlink:label="lab_bbplc_CashAndBankBalancesAtCentralBanksPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and balances at central banks, percentage</link:label>
    <link:label id="lab_bbplc_CashAndBankBalancesAtCentralBanksPercentage_label_en-US" xlink:label="lab_bbplc_CashAndBankBalancesAtCentralBanksPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash And Bank Balances At Central Banks, Percentage</link:label>
    <link:label id="lab_bbplc_CashAndBankBalancesAtCentralBanksPercentage_documentation_en-US" xlink:label="lab_bbplc_CashAndBankBalancesAtCentralBanksPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of cash and bank balances held at central banks, expressed as a percentage.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CashAndBankBalancesAtCentralBanksPercentage" xlink:href="bbplc-20251231.xsd#bbplc_CashAndBankBalancesAtCentralBanksPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CashAndBankBalancesAtCentralBanksPercentage" xlink:to="lab_bbplc_CashAndBankBalancesAtCentralBanksPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LeasesTable_019c29a6-4931-7a06-a6b6-0fe004d73151_terseLabel_en-US" xlink:label="lab_bbplc_LeasesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leases [Table]</link:label>
    <link:label id="lab_bbplc_LeasesTable_label_en-US" xlink:label="lab_bbplc_LeasesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leases [Table]</link:label>
    <link:label id="lab_bbplc_LeasesTable_documentation_en-US" xlink:label="lab_bbplc_LeasesTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Leases [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LeasesTable" xlink:href="bbplc-20251231.xsd#bbplc_LeasesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LeasesTable" xlink:to="lab_bbplc_LeasesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_StrongIncludingInvestmentGradeMember_019c29a6-48ae-7fcb-92fa-0001acf588fe_terseLabel_en-US" xlink:label="lab_bbplc_StrongIncludingInvestmentGradeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Strong</link:label>
    <link:label id="lab_bbplc_StrongIncludingInvestmentGradeMember_label_en-US" xlink:label="lab_bbplc_StrongIncludingInvestmentGradeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Strong (Including Investment Grade) [Member]</link:label>
    <link:label id="lab_bbplc_StrongIncludingInvestmentGradeMember_documentation_en-US" xlink:label="lab_bbplc_StrongIncludingInvestmentGradeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the strong internal credit grade including investment grade. There is a very high likelihood of the asset being recovered in full.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StrongIncludingInvestmentGradeMember" xlink:href="bbplc-20251231.xsd#bbplc_StrongIncludingInvestmentGradeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StrongIncludingInvestmentGradeMember" xlink:to="lab_bbplc_StrongIncludingInvestmentGradeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems_019c29a6-49d1-7715-9180-a1c4e9f835d1_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial liabilities [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial liabilities [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems" xlink:to="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnFinancialInstrumentsAbstract_019c29a6-4931-7d18-a275-b361d6925034_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on financial instruments [abstract]</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnFinancialInstrumentsAbstract_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on financial instruments [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnFinancialInstrumentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnFinancialInstrumentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnFinancialInstrumentsAbstract" xlink:to="lab_ifrs-full_GainsLossesOnFinancialInstrumentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesDomain_019c29a6-49d1-778c-bf4c-20d02792e8f9_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of interest rates [domain]</link:label>
    <link:label id="lab_ifrs-full_TypesOfInterestRatesDomain_label_en-US" xlink:label="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of interest rates [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfInterestRatesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfInterestRatesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfInterestRatesDomain" xlink:to="lab_ifrs-full_TypesOfInterestRatesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IssueOfConvertibleInstruments_019c29a6-48ae-7b90-acdc-bc8b0c28d8a7_terseLabel_en-US" xlink:label="lab_ifrs-full_IssueOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AT1 securities issuance</link:label>
    <link:label id="lab_ifrs-full_IssueOfConvertibleInstruments_label_en-US" xlink:label="lab_ifrs-full_IssueOfConvertibleInstruments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Issue of convertible instruments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IssueOfConvertibleInstruments" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IssueOfConvertibleInstruments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IssueOfConvertibleInstruments" xlink:to="lab_ifrs-full_IssueOfConvertibleInstruments" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory_019c29a6-4798-7dc8-923e-73c36a9ffb0e_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for purchased financial guarantee contracts</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for financial guarantees [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForFinancialGuaranteesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember_019c29a6-4798-7f69-999a-86d2e51549ad_terseLabel_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Civil actions in respect of the US Anti-Terrorism Act</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember_label_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Civil Actions In Respect Of The US Anti-Terrorism Act [Member]</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember_documentation_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Civil complaints against Barclays Bank PLC and other banks allege engagement in a conspiracy and violation of the US Anti-Terrorism Act (ATA).</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember" xlink:href="bbplc-20251231.xsd#bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember" xlink:to="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember_019c29a6-48ae-742b-84a1-e182f7c8de37_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2.15 to 11.35%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Two Point One Five To Eleven Point Three Five Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale retail lending with a default grade betweeen 15 and 19. A probability of default between 2.15% and 11.35%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultTwoPointOneFiveToElevenPointThreeFivePercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract_019c29a6-4931-7434-ac43-c1abe91fea22_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current tax charge/(credit)</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax expense (income) and adjustments for current tax of prior periods [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:to="lab_ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CommercialMortgageBackedSecurityMember_019c29a6-4930-7f47-80eb-4edb5923688d_terseLabel_en-US" xlink:label="lab_bbplc_CommercialMortgageBackedSecurityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial mortgage backed securities</link:label>
    <link:label id="lab_bbplc_CommercialMortgageBackedSecurityMember_label_en-US" xlink:label="lab_bbplc_CommercialMortgageBackedSecurityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Mortgage Backed Security [Member]</link:label>
    <link:label id="lab_bbplc_CommercialMortgageBackedSecurityMember_documentation_en-US" xlink:label="lab_bbplc_CommercialMortgageBackedSecurityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for commerical mortgage backed securities held by the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CommercialMortgageBackedSecurityMember" xlink:href="bbplc-20251231.xsd#bbplc_CommercialMortgageBackedSecurityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CommercialMortgageBackedSecurityMember" xlink:to="lab_bbplc_CommercialMortgageBackedSecurityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets_019c29a6-49d1-7e5b-a642-2b658d876417_negatedLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Impairment charge</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss, property, plant and equipment including right-of-use assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:to="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensation_019c29a6-4931-7eaf-9e84-4992a430fe3d_totalLabel_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensation" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total remuneration awarded</link:label>
    <link:label id="lab_ifrs-full_KeyManagementPersonnelCompensation_label_en-US" xlink:label="lab_ifrs-full_KeyManagementPersonnelCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key management personnel compensation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_KeyManagementPersonnelCompensation" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_KeyManagementPersonnelCompensation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_KeyManagementPersonnelCompensation" xlink:to="lab_ifrs-full_KeyManagementPersonnelCompensation" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable_019c29a6-49d1-7403-8c08-9fa9b1f8a391_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial liabilities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial liabilities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable" xlink:to="lab_ifrs-full_DisclosureOfOffsettingOfFinancialLiabilitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis_019c29a6-4828-7908-aff1-6d496b965748_terseLabel_en-US" xlink:label="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Characteristics of defined benefit plans [axis]</link:label>
    <link:label id="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis_label_en-US" xlink:label="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Characteristics of defined benefit plans [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis" xlink:to="lab_ifrs-full_CharacteristicsOfDefinedBenefitPlansAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OnDemandMember_019c29a6-4930-7726-ad6e-cbe2743755a7_verboseLabel_en-US" xlink:label="lab_ifrs-full_OnDemandMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Callable</link:label>
    <link:label id="lab_ifrs-full_OnDemandMember_label_en-US" xlink:label="lab_ifrs-full_OnDemandMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">On demand [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OnDemandMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OnDemandMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OnDemandMember" xlink:to="lab_ifrs-full_OnDemandMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable_019c29a6-4930-7b56-9430-9affa2c7dcca_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of unconsolidated structured entities [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of unconsolidated structured entities [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable" xlink:to="lab_ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets_019c29a6-48ae-78a8-85ae-eb6af5d80e45_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase in other assets</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets_019c29a6-48ae-707f-9ba4-5e8b3d2a4a5e_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (increase)/decrease in other assets</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in other assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInOtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HighestPaidDirectorMember_019c29a6-48ae-7902-9dd3-dd80a09cb49e_terseLabel_en-US" xlink:label="lab_bbplc_HighestPaidDirectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Highest paid director</link:label>
    <link:label id="lab_bbplc_HighestPaidDirectorMember_label_en-US" xlink:label="lab_bbplc_HighestPaidDirectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Highest Paid Director [Member]</link:label>
    <link:label id="lab_bbplc_HighestPaidDirectorMember_documentation_en-US" xlink:label="lab_bbplc_HighestPaidDirectorMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the highest paid director.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HighestPaidDirectorMember" xlink:href="bbplc-20251231.xsd#bbplc_HighestPaidDirectorMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HighestPaidDirectorMember" xlink:to="lab_bbplc_HighestPaidDirectorMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_019c29a6-49d1-780d-83d6-7fee8ed98b81_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for goodwill and intangible assets</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for intangible assets and goodwill [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BankAcceptanceAssets_019c29a6-48ae-7772-8e00-8e93be9f10fd_terseLabel_en-US" xlink:label="lab_ifrs-full_BankAcceptanceAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral and settlement balances</link:label>
    <link:label id="lab_ifrs-full_BankAcceptanceAssets_label_en-US" xlink:label="lab_ifrs-full_BankAcceptanceAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank acceptance assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BankAcceptanceAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BankAcceptanceAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BankAcceptanceAssets" xlink:to="lab_ifrs-full_BankAcceptanceAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_019c29a6-4828-767f-837e-ecd8f09895d0_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_label_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_EnergyAndWaterMember_019c29a6-4828-7501-be15-6a90d7c0c2d3_terseLabel_en-US" xlink:label="lab_bbplc_EnergyAndWaterMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Energy and water</link:label>
    <link:label id="lab_bbplc_EnergyAndWaterMember_label_en-US" xlink:label="lab_bbplc_EnergyAndWaterMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Energy And Water [Member]</link:label>
    <link:label id="lab_bbplc_EnergyAndWaterMember_documentation_en-US" xlink:label="lab_bbplc_EnergyAndWaterMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the energy and water industry.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_EnergyAndWaterMember" xlink:href="bbplc-20251231.xsd#bbplc_EnergyAndWaterMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_EnergyAndWaterMember" xlink:to="lab_bbplc_EnergyAndWaterMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract_019c29a6-4798-77ec-bcb6-bfc52b8daaa9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_019c29a6-4828-7e83-90d9-4bd784784937_terseLabel_en-US" xlink:label="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedging (losses)/gains for the year</link:label>
    <link:label id="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax_label_en-US" xlink:label="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (losses) on hedges of net investments in foreign operations, before tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:to="lab_ifrs-full_GainsLossesOnHedgesOfNetInvestmentsInForeignOperationsBeforeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_StressHorizonPeriodECL_019c29a6-4828-73fc-add7-1770bd1bc106_terseLabel_en-US" xlink:label="lab_bbplc_StressHorizonPeriodECL" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stress horizon period, ECL</link:label>
    <link:label id="lab_bbplc_StressHorizonPeriodECL_label_en-US" xlink:label="lab_bbplc_StressHorizonPeriodECL" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stress Horizon Period, ECL</link:label>
    <link:label id="lab_bbplc_StressHorizonPeriodECL_documentation_en-US" xlink:label="lab_bbplc_StressHorizonPeriodECL" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Stress Horizon Period, ECL</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_StressHorizonPeriodECL" xlink:href="bbplc-20251231.xsd#bbplc_StressHorizonPeriodECL"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_StressHorizonPeriodECL" xlink:to="lab_bbplc_StressHorizonPeriodECL" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysSecuredNotesFinanceLLPMember_019c29a6-4798-7d38-bba6-aee36989b0bb_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysSecuredNotesFinanceLLPMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Secured Notes Finance LLP</link:label>
    <link:label id="lab_bbplc_BarclaysSecuredNotesFinanceLLPMember_label_en-US" xlink:label="lab_bbplc_BarclaysSecuredNotesFinanceLLPMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Secured Notes Finance LLP [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysSecuredNotesFinanceLLPMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysSecuredNotesFinanceLLPMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Secured Notes Finance LLP</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysSecuredNotesFinanceLLPMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysSecuredNotesFinanceLLPMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysSecuredNotesFinanceLLPMember" xlink:to="lab_bbplc_BarclaysSecuredNotesFinanceLLPMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_019c29a6-49d1-7b8b-be78-9ca9bb971678_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through other comprehensive income</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets measured at fair value through other comprehensive income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:to="lab_ifrs-full_FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember_019c29a6-4931-7f10-b0f8-85650c3ab826_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comparable price</link:label>
    <link:label id="lab_ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember_label_en-US" xlink:label="lab_ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment to mid-market consensus price, measurement input [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember" xlink:to="lab_ifrs-full_AdjustmentToMidmarketConsensusPriceMeasurementInputMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SecuritiesLendingMember_019c29a6-49d1-7247-b0f5-67314d364fe5_terseLabel_en-US" xlink:label="lab_ifrs-full_SecuritiesLendingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lending</link:label>
    <link:label id="lab_ifrs-full_SecuritiesLendingMember_019c29a6-49d1-73a0-a059-ff83e5b7c747_verboseLabel_en-US" xlink:label="lab_ifrs-full_SecuritiesLendingMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Securities lending arrangements</link:label>
    <link:label id="lab_ifrs-full_SecuritiesLendingMember_label_en-US" xlink:label="lab_ifrs-full_SecuritiesLendingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities lending [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SecuritiesLendingMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SecuritiesLendingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SecuritiesLendingMember" xlink:to="lab_ifrs-full_SecuritiesLendingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AuditInformationAbstract_label_en-US" xlink:label="lab_bbplc_AuditInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Audit Information [Abstract]</link:label>
    <link:label id="lab_bbplc_AuditInformationAbstract_documentation_en-US" xlink:label="lab_bbplc_AuditInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Audit Information [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AuditInformationAbstract" xlink:href="bbplc-20251231.xsd#bbplc_AuditInformationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AuditInformationAbstract" xlink:to="lab_bbplc_AuditInformationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_019c29a6-49d1-72d9-a342-14c3d9907914_terseLabel_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_label_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityVoluntaryFilers_019c29a6-4931-7286-ac70-b482e01058a3_terseLabel_en-US" xlink:label="lab_dei_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:label id="lab_dei_EntityVoluntaryFilers_label_en-US" xlink:label="lab_dei_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityVoluntaryFilers" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityVoluntaryFilers"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityVoluntaryFilers" xlink:to="lab_dei_EntityVoluntaryFilers" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_019c29a6-49d1-7e6c-95a1-c0034d670e32_terseLabel_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment charges /(releases)</link:label>
    <link:label id="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment loss recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForTaxServices_019c29a6-4930-7d92-87b3-c9e90b629c7e_terseLabel_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForTaxServices" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax fees</link:label>
    <link:label id="lab_ifrs-full_AuditorsRemunerationForTaxServices_label_en-US" xlink:label="lab_ifrs-full_AuditorsRemunerationForTaxServices" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Auditor's remuneration for tax services</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AuditorsRemunerationForTaxServices" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AuditorsRemunerationForTaxServices"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AuditorsRemunerationForTaxServices" xlink:to="lab_ifrs-full_AuditorsRemunerationForTaxServices" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward_019c29a6-4827-7671-bd92-c38482dd90aa_terseLabel_en-US" xlink:label="lab_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency translation reserve</link:label>
    <link:label id="lab_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward_label_en-US" xlink:label="lab_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation Of Currency Translation Reserve [Roll Forward]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward_documentation_en-US" xlink:label="lab_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reconciliation Of Currency Translation Reserve</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward" xlink:href="bbplc-20251231.xsd#bbplc_ReconciliationOfCurrencyTranslationReserveRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward" xlink:to="lab_bbplc_ReconciliationOfCurrencyTranslationReserveRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MandatoryReserveDepositsAtCentralBanks_019c29a6-4828-740c-963c-7fcb73ebbb5f_terseLabel_en-US" xlink:label="lab_ifrs-full_MandatoryReserveDepositsAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balances with banks and other regulatory authorities</link:label>
    <link:label id="lab_ifrs-full_MandatoryReserveDepositsAtCentralBanks_label_en-US" xlink:label="lab_ifrs-full_MandatoryReserveDepositsAtCentralBanks" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mandatory reserve deposits at central banks</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MandatoryReserveDepositsAtCentralBanks" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MandatoryReserveDepositsAtCentralBanks"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MandatoryReserveDepositsAtCentralBanks" xlink:to="lab_ifrs-full_MandatoryReserveDepositsAtCentralBanks" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_019c29a6-4930-75b4-aa4b-a04f4c03bd8b_terseLabel_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in subsidiary</link:label>
    <link:label id="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary_label_en-US" xlink:label="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proportion of ownership interest in subsidiary</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:to="lab_ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges_019c29a6-49d1-7275-85a3-157ecf2327e2_terseLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balance in currency translation reserve for continuing hedges</link:label>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges_019c29a6-49d1-718f-b928-8d11c2f27461_periodStartLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Currency translation reserve, beginning of period</link:label>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges_019c29a6-49d1-7f77-83bc-051ce32d6123_periodEndLabel_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Currency translation reserve, end of period</link:label>
    <link:label id="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges_label_en-US" xlink:label="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reserve of exchange differences on translation, continuing hedges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges" xlink:to="lab_ifrs-full_ReserveOfExchangeDifferencesOnTranslationContinuingHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_019c29a6-49d1-7d0a-9a9e-c5cc0957facb_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MeasurementAxis_019c29a6-49d1-7eb9-8101-eb2f430f089d_terseLabel_en-US" xlink:label="lab_ifrs-full_MeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measurement [axis]</link:label>
    <link:label id="lab_ifrs-full_MeasurementAxis_label_en-US" xlink:label="lab_ifrs-full_MeasurementAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MeasurementAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MeasurementAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MeasurementAxis" xlink:to="lab_ifrs-full_MeasurementAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges_019c29a6-4798-7865-ae82-c99e8a2d2414_negatedLabel_en-US" xlink:label="lab_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Derivatives which hedge the net investments</link:label>
    <link:label id="lab_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges_label_en-US" xlink:label="lab_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Which Hedge The Net Investments, Hedges</link:label>
    <link:label id="lab_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges_documentation_en-US" xlink:label="lab_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of hedges classified as derivatives which hedge the net investments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges" xlink:href="bbplc-20251231.xsd#bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges" xlink:to="lab_bbplc_DerivativesWhichHedgeTheNetInvestmentsHedges" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherAuditorServicesMember_019c29a6-4828-74de-a35e-d437a0fb2d3d_terseLabel_en-US" xlink:label="lab_bbplc_OtherAuditorServicesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other services</link:label>
    <link:label id="lab_bbplc_OtherAuditorServicesMember_label_en-US" xlink:label="lab_bbplc_OtherAuditorServicesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Auditor Services [Member]</link:label>
    <link:label id="lab_bbplc_OtherAuditorServicesMember_documentation_en-US" xlink:label="lab_bbplc_OtherAuditorServicesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other auditor services.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherAuditorServicesMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherAuditorServicesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherAuditorServicesMember" xlink:to="lab_bbplc_OtherAuditorServicesMember" xlink:type="arc" order="1"/>
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    <link:label id="lab_ifrs-full_LoansAndReceivablesCategoryMember_019c29a6-4931-7b45-9c7a-8c7e6ae0899c_verboseLabel_en-US" xlink:label="lab_ifrs-full_LoansAndReceivablesCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances</link:label>
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    <link:label id="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements_019c29a6-4930-7532-967e-44fc3a126884_terseLabel_en-US" xlink:label="lab_ifrs-full_NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum exposure</link:label>
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    <link:label id="lab_ifrs-full_TypesOfFinancialAssetsAxis_019c29a6-48ae-7d94-ac6c-30a55fe7cc6a_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfFinancialAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of financial assets [axis]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfFinancialAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfFinancialAssetsAxis"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughTransfersExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-4828-7bab-8da7-1fa24eb22131_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughTransfersExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net transfers between stages</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfInterestsInUnconsolidatedStructuredEntitiesExplanatory_019c29a6-4930-796d-9430-f6131d932926_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInUnconsolidatedStructuredEntitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of entities excluded from consolidation</link:label>
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    <link:label id="lab_ifrs-full_DebtSecuritiesMember_019c29a6-48ae-7caf-be05-b27d6b9d5503_terseLabel_en-US" xlink:label="lab_ifrs-full_DebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt securities</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of employee benefits [text block]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEmployeeBenefitsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading_019c29a6-49d1-7972-9d12-4b191dfd48e9_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net (increase)/decrease in trading portfolio assets</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for decrease (increase) in financial assets held for trading</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading" xlink:to="lab_ifrs-full_AdjustmentsForDecreaseIncreaseInFinancialAssetsHeldForTrading" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_019c29a6-4828-78b1-9acd-49717d70d2f7_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation, amortisation and impairment of property, plant, equipment and intangibles</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="lab_ifrs-full_AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IndefinitelyMember_019c29a6-4798-71f7-a7cc-e9140637a8f8_terseLabel_en-US" xlink:label="lab_bbplc_IndefinitelyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Indefinitely</link:label>
    <link:label id="lab_bbplc_IndefinitelyMember_label_en-US" xlink:label="lab_bbplc_IndefinitelyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Indefinitely [member]</link:label>
    <link:label id="lab_bbplc_IndefinitelyMember_documentation_en-US" xlink:label="lab_bbplc_IndefinitelyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for indefinite carryforward.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IndefinitelyMember" xlink:href="bbplc-20251231.xsd#bbplc_IndefinitelyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IndefinitelyMember" xlink:to="lab_bbplc_IndefinitelyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_AllCurrenciesDomain_019c29a6-4931-7260-bab6-9e34d771cfab_terseLabel_en-US" xlink:label="lab_currency_AllCurrenciesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">All Currencies [Domain]</link:label>
    <link:label id="lab_currency_AllCurrenciesDomain_label_en-US" xlink:label="lab_currency_AllCurrenciesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">All Currencies [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AllCurrenciesDomain"/>
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    <link:label id="lab_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember_019c29a6-49d1-7dda-87fe-44c0be7225d3_terseLabel_en-US" xlink:label="lab_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B S&amp;P 500 VIX&#160;Mid-Term&#160;FuturesTM&#160;ETNs</link:label>
    <link:label id="lab_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember_label_en-US" xlink:label="lab_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B S&amp;P 500 VIX&#160;Mid-Term&#160;FuturesTM&#160;ETNs [Member]</link:label>
    <link:label id="lab_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember_documentation_en-US" xlink:label="lab_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Series B S&amp;P 500 VIX&#160;Mid-Term&#160;FuturesTM&#160;ETNs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember" xlink:href="bbplc-20251231.xsd#bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember" xlink:to="lab_bbplc_IPathSeriesBSP500VIXMidTermFuturesTMETNsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable_019c29a6-4798-7637-be6f-fc9426cb13fe_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract_019c29a6-49d1-78f5-b048-5d2f160e634c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory_019c29a6-4828-7a67-9ef6-cd4dad8e44bf_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of Level 3 assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows_019c29a6-4930-7fd5-b650-a170126d4aea_terseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other financial liabilities, undiscounted</link:label>
    <link:label id="lab_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows_label_en-US" xlink:label="lab_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Liabilities, Undiscounted Cash Flows</link:label>
    <link:label id="lab_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows_documentation_en-US" xlink:label="lab_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of contractual undiscounted cash flows in relation to other financial liabilities.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows" xlink:href="bbplc-20251231.xsd#bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows" xlink:to="lab_bbplc_OtherFinancialLiabilitiesUndiscountedCashFlows" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersFromStage1ToStage2Member_019c29a6-4828-7934-829d-eee3a4794aea_terseLabel_en-US" xlink:label="lab_bbplc_TransfersFromStage1ToStage2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfers from Stage 1 to Stage 2</link:label>
    <link:label id="lab_bbplc_TransfersFromStage1ToStage2Member_label_en-US" xlink:label="lab_bbplc_TransfersFromStage1ToStage2Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers From Stage 1 To Stage 2 [Member]</link:label>
    <link:label id="lab_bbplc_TransfersFromStage1ToStage2Member_documentation_en-US" xlink:label="lab_bbplc_TransfersFromStage1ToStage2Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the transfers of financial assets from stage 1 to stage 2.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersFromStage1ToStage2Member" xlink:href="bbplc-20251231.xsd#bbplc_TransfersFromStage1ToStage2Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersFromStage1ToStage2Member" xlink:to="lab_bbplc_TransfersFromStage1ToStage2Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity_019c29a6-4827-7100-adcd-24437841805f_terseLabel_en-US" xlink:label="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain from continuing involvement, for the year ended</link:label>
    <link:label id="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity_label_en-US" xlink:label="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (loss) from transfer activity during period representing greatest transfer activity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity" xlink:to="lab_ifrs-full_GainLossOfDerecognisedFinancialAssetsRepresentingGreatestTransferActivity" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_UKRegulatoryLevies_019c29a6-4828-704e-8dd0-822fbbd51ac3_negatedTerseLabel_en-US" xlink:label="lab_bbplc_UKRegulatoryLevies" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">UK regulatory levies</link:label>
    <link:label id="lab_bbplc_UKRegulatoryLevies_label_en-US" xlink:label="lab_bbplc_UKRegulatoryLevies" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UK Regulatory Levies</link:label>
    <link:label id="lab_bbplc_UKRegulatoryLevies_documentation_en-US" xlink:label="lab_bbplc_UKRegulatoryLevies" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">UK Regulatory Levies</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_UKRegulatoryLevies" xlink:href="bbplc-20251231.xsd#bbplc_UKRegulatoryLevies"/>
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    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract_019c29a6-4798-7b4c-9d23-225e9e9f2df8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of transactions between related parties [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:to="lab_ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_019c29a6-48ae-7b32-8c32-9f47ba21b3ab_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Exchange and other movements</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in net defined benefit liability (asset) resulting from changes in foreign exchange rates, net defined benefit liability (asset)</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:to="lab_ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract_019c29a6-49d1-7877-bd94-d127057b2fac_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost</link:label>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (decrease) in financial assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract" xlink:to="lab_ifrs-full_IncreaseDecreaseInFinancialAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted_019c29a6-49d1-7a1c-a877-33525a96aed7_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted average fair value per award granted in year</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average fair value at measurement date, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:to="lab_ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgingInstrumentsAxis_019c29a6-4931-7463-95ee-cef8e9c3ea6a_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedging instruments [axis]</link:label>
    <link:label id="lab_ifrs-full_HedgingInstrumentsAxis_label_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedging instruments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgingInstrumentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgingInstrumentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgingInstrumentsAxis" xlink:to="lab_ifrs-full_HedgingInstrumentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HigherRiskBMinusAndBelowMember_019c29a6-48ae-7355-bbf5-bff623f0b2ed_terseLabel_en-US" xlink:label="lab_bbplc_HigherRiskBMinusAndBelowMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Higher Risk</link:label>
    <link:label id="lab_bbplc_HigherRiskBMinusAndBelowMember_label_en-US" xlink:label="lab_bbplc_HigherRiskBMinusAndBelowMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Higher Risk (B Minus And below) [Member]</link:label>
    <link:label id="lab_bbplc_HigherRiskBMinusAndBelowMember_documentation_en-US" xlink:label="lab_bbplc_HigherRiskBMinusAndBelowMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Higher risk internal credit grade. There is concern over the obligors ability to make payments when due. However, these have not yet converted to actual delinquency. There may also be doubts over the value of collateral or security provided. However, the borrower or counterparty is continuing to make payments when due and is expected to settle all outstanding amounts of principal and interest.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HigherRiskBMinusAndBelowMember" xlink:href="bbplc-20251231.xsd#bbplc_HigherRiskBMinusAndBelowMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HigherRiskBMinusAndBelowMember" xlink:to="lab_bbplc_HigherRiskBMinusAndBelowMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CondensedStatementOfComprehensiveIncomeTable_019c29a6-49d1-7672-bb88-57fcc7f74461_terseLabel_en-US" xlink:label="lab_srt_CondensedStatementOfComprehensiveIncomeTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statement of Comprehensive Income [Table]</link:label>
    <link:label id="lab_srt_CondensedStatementOfComprehensiveIncomeTable_label_en-US" xlink:label="lab_srt_CondensedStatementOfComprehensiveIncomeTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Statement of Comprehensive Income [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CondensedStatementOfComprehensiveIncomeTable" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CondensedStatementOfComprehensiveIncomeTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CondensedStatementOfComprehensiveIncomeTable" xlink:to="lab_srt_CondensedStatementOfComprehensiveIncomeTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears_019c29a6-4798-7e40-b3cb-c079f4216dac_terseLabel_en-US" xlink:label="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid, relating to prior years</link:label>
    <link:label id="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears_label_en-US" xlink:label="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends recognised as distributions to owners of parent, relating to prior years</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" xlink:to="lab_ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParentRelatingToPriorYears" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InternalCreditGradesMember_019c29a6-4828-78e4-a184-423dfb38f4e8_terseLabel_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total for all internal credit grades</link:label>
    <link:label id="lab_ifrs-full_InternalCreditGradesMember_label_en-US" xlink:label="lab_ifrs-full_InternalCreditGradesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total for all internal credit grades [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InternalCreditGradesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InternalCreditGradesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InternalCreditGradesMember" xlink:to="lab_ifrs-full_InternalCreditGradesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_IcfrAuditorAttestationFlag_019c29a6-4827-78df-b533-bd275fbf9501_terseLabel_en-US" xlink:label="lab_dei_IcfrAuditorAttestationFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ICFR Auditor Attestation Flag</link:label>
    <link:label id="lab_dei_IcfrAuditorAttestationFlag_label_en-US" xlink:label="lab_dei_IcfrAuditorAttestationFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ICFR Auditor Attestation Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_IcfrAuditorAttestationFlag" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_IcfrAuditorAttestationFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_IcfrAuditorAttestationFlag" xlink:to="lab_dei_IcfrAuditorAttestationFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory_019c29a6-48ae-725a-8920-86d5873df26d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of analysis of scheme assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value of plan assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract_019c29a6-4798-734c-8ae8-e54852db6c74_terseLabel_en-US" xlink:label="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Classes of employee benefits expense [abstract]</link:label>
    <link:label id="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract_label_en-US" xlink:label="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Classes of employee benefits expense [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:to="lab_ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_019c29a6-49d1-7aae-9164-1981fea6624c_verboseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Business activity in the year</link:label>
    <link:label id="lab_ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts_label_en-US" xlink:label="lab_ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase through origination or purchase, exposure to credit risk on loan commitments and financial guarantee contracts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:to="lab_ifrs-full_IncreaseThroughOriginationOrPurchaseExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOtherProvisionsExplanatory_019c29a6-4828-79ce-aafb-085d7625c563_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of movements in provisions</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOtherProvisionsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOtherProvisionsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of other provisions [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOtherProvisionsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOtherProvisionsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOtherProvisionsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfOtherProvisionsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OffsettingFinancialAssetsAndFinancialLiabilitiesAbstract_label_en-US" xlink:label="lab_bbplc_OffsettingFinancialAssetsAndFinancialLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Financial Assets And Financial Liabilities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OffsettingFinancialAssetsAndFinancialLiabilitiesAbstract" xlink:href="bbplc-20251231.xsd#bbplc_OffsettingFinancialAssetsAndFinancialLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OffsettingFinancialAssetsAndFinancialLiabilitiesAbstract" xlink:to="lab_bbplc_OffsettingFinancialAssetsAndFinancialLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019c29a6-49d1-7b68-b5ad-f171699a4ccc_verboseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net increase in reverse repurchase agreements and other similar secured lending</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent_019c29a6-49d1-7e3f-803c-896521ff2662_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net (increase)/decrease in reverse repurchase agreements and other similar secured lending</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in repurchase agreements and cash collateral on securities lent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInRepurchaseAgreementsAndCashCollateralOnSecuritiesLent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory_019c29a6-48ae-79bb-bfa9-1631a82c2a54_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of significant unobservable inputs, liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of significant unobservable inputs used in fair value measurement of liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BrokerageCommissionsAndClientExecutionFeesMember_019c29a6-4798-7063-aa46-0ec39d404f03_terseLabel_en-US" xlink:label="lab_bbplc_BrokerageCommissionsAndClientExecutionFeesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Brokerage and execution</link:label>
    <link:label id="lab_bbplc_BrokerageCommissionsAndClientExecutionFeesMember_label_en-US" xlink:label="lab_bbplc_BrokerageCommissionsAndClientExecutionFeesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Brokerage Commissions And Client Execution Fees [Member]</link:label>
    <link:label id="lab_bbplc_BrokerageCommissionsAndClientExecutionFeesMember_documentation_en-US" xlink:label="lab_bbplc_BrokerageCommissionsAndClientExecutionFeesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for fees earned for executing client transactions with exchanges and over-the- counter markets and assisting clients in clearing transactions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BrokerageCommissionsAndClientExecutionFeesMember" xlink:href="bbplc-20251231.xsd#bbplc_BrokerageCommissionsAndClientExecutionFeesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BrokerageCommissionsAndClientExecutionFeesMember" xlink:to="lab_bbplc_BrokerageCommissionsAndClientExecutionFeesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashOutflowForLeases_019c29a6-4931-713b-ab61-cbf5a7b72dcd_negatedLabel_en-US" xlink:label="lab_ifrs-full_CashOutflowForLeases" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cash payments</link:label>
    <link:label id="lab_ifrs-full_CashOutflowForLeases_label_en-US" xlink:label="lab_ifrs-full_CashOutflowForLeases" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash outflow for leases</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashOutflowForLeases" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CashOutflowForLeases"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashOutflowForLeases" xlink:to="lab_ifrs-full_CashOutflowForLeases" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems_019c29a6-48ae-7b2d-afb7-f31033dac6fd_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of offsetting of financial assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfOffsettingOfFinancialAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ManagementValueAtRiskTableTextBlock_019c29a6-49d1-7395-88b0-a95780839ae1_terseLabel_en-US" xlink:label="lab_bbplc_ManagementValueAtRiskTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of management Value at Risk</link:label>
    <link:label id="lab_bbplc_ManagementValueAtRiskTableTextBlock_label_en-US" xlink:label="lab_bbplc_ManagementValueAtRiskTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Management Value At Risk [Table Text Block]</link:label>
    <link:label id="lab_bbplc_ManagementValueAtRiskTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_ManagementValueAtRiskTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of the daily average, maximum and minimum values of management value at risk.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ManagementValueAtRiskTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_ManagementValueAtRiskTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ManagementValueAtRiskTableTextBlock" xlink:to="lab_bbplc_ManagementValueAtRiskTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SocialSecurityContributions_019c29a6-4931-78ba-a348-50823a049ff0_terseLabel_en-US" xlink:label="lab_ifrs-full_SocialSecurityContributions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Social security costs</link:label>
    <link:label id="lab_ifrs-full_SocialSecurityContributions_label_en-US" xlink:label="lab_ifrs-full_SocialSecurityContributions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Social security contributions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SocialSecurityContributions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SocialSecurityContributions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SocialSecurityContributions" xlink:to="lab_ifrs-full_SocialSecurityContributions" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RestructuringProvisionMember_019c29a6-4798-74b9-999f-d606762f8b5b_terseLabel_en-US" xlink:label="lab_ifrs-full_RestructuringProvisionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redundancy and restructuring</link:label>
    <link:label id="lab_ifrs-full_RestructuringProvisionMember_label_en-US" xlink:label="lab_ifrs-full_RestructuringProvisionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring provision [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RestructuringProvisionMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RestructuringProvisionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RestructuringProvisionMember" xlink:to="lab_ifrs-full_RestructuringProvisionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_019c29a6-4930-73a8-a137-f1b01d6b3fcc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" xlink:to="lab_ifrs-full_DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember_019c29a6-4931-75ef-a8eb-16b7b35a8bf4_terseLabel_en-US" xlink:label="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Off-balance sheet</link:label>
    <link:label id="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember_019c29a6-4931-704c-a2f7-2d1d4b636ff4_netLabel_en-US" xlink:label="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Loan commitments and financial guarantees</link:label>
    <link:label id="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember_label_en-US" xlink:label="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Off-Balance Sheet Loan Commitments And Financial Guarantee Contracts [Member]</link:label>
    <link:label id="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember_documentation_en-US" xlink:label="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for off balance sheet loan commitments and financial guarantee contracts.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:href="bbplc-20251231.xsd#bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:to="lab_bbplc_OffBalanceSheetLoanCommitmentsAndFinancialGuaranteeContractsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit_019c29a6-4828-7613-a3df-50fee5a06eae_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of lawsuits consolidated into a separate lawsuit</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit_label_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Lawsuits Consolidated Into A Separate Lawsuit</link:label>
    <link:label id="lab_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit_documentation_en-US" xlink:label="lab_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Lawsuits Consolidated Into A Separate Lawsuit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit" xlink:to="lab_bbplc_NumberOfLawsuitsConsolidatedIntoASeparateLawsuit" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember_019c29a6-49d1-7f78-97b2-c2efcd984b62_terseLabel_en-US" xlink:label="lab_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income from individual countries which represent more than 5% of total income</link:label>
    <link:label id="lab_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember_label_en-US" xlink:label="lab_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income From Individual Countries Which Represent More Than 5% Of Total Income [Member]</link:label>
    <link:label id="lab_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember_documentation_en-US" xlink:label="lab_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for individual country locations individually representing more than five percent of total income.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember" xlink:href="bbplc-20251231.xsd#bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember" xlink:to="lab_bbplc_IncomeFromIndividualCountriesWhichRepresentMoreThan5OfTotalIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfAdditionalInformationExplanatory_019c29a6-49d1-786d-8427-b00b7afad9c3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfAdditionalInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of management adjustments to models for impairment and Economic uncertainty management adjustments to models for impairment</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfAdditionalInformationExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfAdditionalInformationExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of additional information [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfAdditionalInformationExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfAdditionalInformationExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfAdditionalInformationExplanatory" xlink:to="lab_ifrs-full_DisclosureOfAdditionalInformationExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory_019c29a6-4798-731f-a099-2aa48c73aa5c_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of total fees in scope of IFRS 15 Revenues from Contracts with Customers</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of disaggregation of revenue from contracts with customers [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:to="lab_ifrs-full_DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DepositsFromCustomersAtAmortisedCost_019c29a6-4930-78ba-8b66-78a31cf3e296_terseLabel_en-US" xlink:label="lab_ifrs-full_DepositsFromCustomersAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits at amortised cost from customers</link:label>
    <link:label id="lab_ifrs-full_DepositsFromCustomersAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_DepositsFromCustomersAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits from customers at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsFromCustomersAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepositsFromCustomersAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepositsFromCustomersAtAmortisedCost" xlink:to="lab_ifrs-full_DepositsFromCustomersAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible_019c29a6-48ae-77cb-bbb1-feecea24a856_terseLabel_en-US" xlink:label="lab_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impact of UK bank levy being non-deductible, percentage</link:label>
    <link:label id="lab_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible_label_en-US" xlink:label="lab_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Rate Effect Of UK Bank Levy Being Non-Deductible</link:label>
    <link:label id="lab_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible_documentation_en-US" xlink:label="lab_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the United Kingdom Bank levy being non-deductible. The BRRD requires EU member states to establish a pre-funded resolution financing arrangement with funding equal to 1% of covered deposits by 31 December 2024 to cover the costs of bank resolutions. Where the amount of such pre-funding is insufficient, the BRRD requires that EU member states raise subsequent contributions. The UK government raises both pre-funded and subsequent contributions that would be required were the pre-funded contributions not to cover costs or other expenses incurred by use of the resolution funds by way of a tax on the balance sheets of banks.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible" xlink:href="bbplc-20251231.xsd#bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible" xlink:to="lab_bbplc_TaxRateEffectOfUKBankLevyBeingNonDeductible" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_019c29a6-4828-7941-a93c-6c2fb73d866e_terseLabel_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity holders of the parent</link:label>
    <link:label id="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_label_en-US" xlink:label="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive income, attributable to owners of parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:to="lab_ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities_019c29a6-4930-76dc-825a-6011e54b8724_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets pledged</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets pledged as collateral for liabilities or contingent liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:to="lab_ifrs-full_FinancialAssetsPledgedAsCollateralForLiabilitiesOrContingentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_NOK_019c29a6-4930-7e4d-8631-60fdbcd7b4c0_terseLabel_en-US" xlink:label="lab_currency_NOK" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NOK</link:label>
    <link:label id="lab_currency_NOK_label_en-US" xlink:label="lab_currency_NOK" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Norway, Krone</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_NOK" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_NOK"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_NOK" xlink:to="lab_currency_NOK" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ForeignCurrencyNetInvestmentsHedgedItem_019c29a6-4828-7c32-a60a-8a4a8abd8475_terseLabel_en-US" xlink:label="lab_bbplc_ForeignCurrencyNetInvestmentsHedgedItem" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency net investments</link:label>
    <link:label id="lab_bbplc_ForeignCurrencyNetInvestmentsHedgedItem_label_en-US" xlink:label="lab_bbplc_ForeignCurrencyNetInvestmentsHedgedItem" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign Currency Net Investments, Hedged Item</link:label>
    <link:label id="lab_bbplc_ForeignCurrencyNetInvestmentsHedgedItem_documentation_en-US" xlink:label="lab_bbplc_ForeignCurrencyNetInvestmentsHedgedItem" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of foreign currency net investments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ForeignCurrencyNetInvestmentsHedgedItem" xlink:href="bbplc-20251231.xsd#bbplc_ForeignCurrencyNetInvestmentsHedgedItem"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ForeignCurrencyNetInvestmentsHedgedItem" xlink:to="lab_bbplc_ForeignCurrencyNetInvestmentsHedgedItem" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_Liabilities_019c29a6-4798-75fa-b29f-49f0e97167eb_totalLabel_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_ifrs-full_Liabilities_019c29a6-4798-74db-8ca7-c6f6d922f69a_verboseLabel_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_ifrs-full_Liabilities_019c29a6-4798-7b04-a903-c80d0b50017d_terseLabel_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:label id="lab_ifrs-full_Liabilities_label_en-US" xlink:label="lab_ifrs-full_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_Liabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_Liabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_Liabilities" xlink:to="lab_ifrs-full_Liabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_currency_AUD_019c29a6-48ae-7e21-bddc-40b2a3299fc6_terseLabel_en-US" xlink:label="lab_currency_AUD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">AUD</link:label>
    <link:label id="lab_currency_AUD_label_en-US" xlink:label="lab_currency_AUD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Australia, Dollars</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AUD" xlink:href="https://xbrl.sec.gov/currency/2025/currency-2025.xsd#currency_AUD"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_currency_AUD" xlink:to="lab_currency_AUD" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PRATransitionalTierOneCapitalMember_019c29a6-48ae-74b2-86f4-670023f834bb_terseLabel_en-US" xlink:label="lab_bbplc_PRATransitionalTierOneCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">T1 capital</link:label>
    <link:label id="lab_bbplc_PRATransitionalTierOneCapitalMember_label_en-US" xlink:label="lab_bbplc_PRATransitionalTierOneCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PRA Transitional Tier One Capital [Member]</link:label>
    <link:label id="lab_bbplc_PRATransitionalTierOneCapitalMember_documentation_en-US" xlink:label="lab_bbplc_PRATransitionalTierOneCapitalMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the PRA (a subsidiary of the Bank of England) transitional tier 1 regulatory capital on the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PRATransitionalTierOneCapitalMember" xlink:href="bbplc-20251231.xsd#bbplc_PRATransitionalTierOneCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PRATransitionalTierOneCapitalMember" xlink:to="lab_bbplc_PRATransitionalTierOneCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember_019c29a6-49d1-71a4-b581-e257998b8c24_terseLabel_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Civil actions in respect of the US Anti-Terrorism Act - SDNY</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember_label_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Civil Actions In Respect Of The US Anti-Terrorism Act - SDNY [Member]</link:label>
    <link:label id="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember_documentation_en-US" xlink:label="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Civil Actions In Respect Of The US Anti-Terrorism Act - SDNY</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember" xlink:href="bbplc-20251231.xsd#bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember" xlink:to="lab_bbplc_CivilActionsInRespectOfTheUSAntiTerrorismActSDNYMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A3MonthLondonInterbankOfferedRateMember_019c29a6-4827-776c-832d-5a45e2d4709e_terseLabel_en-US" xlink:label="lab_bbplc_A3MonthLondonInterbankOfferedRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">3-Month LIBOR</link:label>
    <link:label id="lab_bbplc_A3MonthLondonInterbankOfferedRateMember_label_en-US" xlink:label="lab_bbplc_A3MonthLondonInterbankOfferedRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">3-Month London Interbank Offered Rate [Member]</link:label>
    <link:label id="lab_bbplc_A3MonthLondonInterbankOfferedRateMember_documentation_en-US" xlink:label="lab_bbplc_A3MonthLondonInterbankOfferedRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">3-Month London Interbank Offered Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A3MonthLondonInterbankOfferedRateMember" xlink:href="bbplc-20251231.xsd#bbplc_A3MonthLondonInterbankOfferedRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A3MonthLondonInterbankOfferedRateMember" xlink:to="lab_bbplc_A3MonthLondonInterbankOfferedRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IntelligentProcessingSolutionsLimitedMember_019c29a6-48ae-77a8-be51-7432cb6fe32b_terseLabel_en-US" xlink:label="lab_bbplc_IntelligentProcessingSolutionsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intelligent Processing Solutions Limited</link:label>
    <link:label id="lab_bbplc_IntelligentProcessingSolutionsLimitedMember_label_en-US" xlink:label="lab_bbplc_IntelligentProcessingSolutionsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intelligent Processing Solutions Limited [Member]</link:label>
    <link:label id="lab_bbplc_IntelligentProcessingSolutionsLimitedMember_documentation_en-US" xlink:label="lab_bbplc_IntelligentProcessingSolutionsLimitedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Intelligent Processing Solutions Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IntelligentProcessingSolutionsLimitedMember" xlink:href="bbplc-20251231.xsd#bbplc_IntelligentProcessingSolutionsLimitedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IntelligentProcessingSolutionsLimitedMember" xlink:to="lab_bbplc_IntelligentProcessingSolutionsLimitedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfPlaintiffs_019c29a6-48ae-7e6d-861a-9bccb444d345_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfPlaintiffs" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of plaintiffs</link:label>
    <link:label id="lab_bbplc_NumberOfPlaintiffs_label_en-US" xlink:label="lab_bbplc_NumberOfPlaintiffs" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Plaintiffs</link:label>
    <link:label id="lab_bbplc_NumberOfPlaintiffs_documentation_en-US" xlink:label="lab_bbplc_NumberOfPlaintiffs" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Plaintiffs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfPlaintiffs" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfPlaintiffs"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfPlaintiffs" xlink:to="lab_bbplc_NumberOfPlaintiffs" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems_019c29a6-49d1-7633-9569-80bfb8361162_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of net defined benefit liability (asset) [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of net defined benefit liability (asset) [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xlink:to="lab_ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember_019c29a6-4931-7f34-9954-2927473f69f0_terseLabel_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">0.60 to 11.35%</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember_label_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Probability Of Default Point Sixty To Eleven Point Three Five Percent [Member]</link:label>
    <link:label id="lab_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember_documentation_en-US" xlink:label="lab_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for internal measures on wholesale and retail lending with a default grade betweeen 12 and 19. A probability of default between 0.60% and 11.35%.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember" xlink:href="bbplc-20251231.xsd#bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember" xlink:to="lab_bbplc_ProbabilityOfDefaultPointSixtyToElevenPointThreeFivePercentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DatedSubordinatedLiabilitiesMember_019c29a6-49d1-7dc0-8a85-10347f665ece_terseLabel_en-US" xlink:label="lab_bbplc_DatedSubordinatedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dated subordinated liabilities</link:label>
    <link:label id="lab_bbplc_DatedSubordinatedLiabilitiesMember_label_en-US" xlink:label="lab_bbplc_DatedSubordinatedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dated Subordinated Liabilities [Member]</link:label>
    <link:label id="lab_bbplc_DatedSubordinatedLiabilitiesMember_documentation_en-US" xlink:label="lab_bbplc_DatedSubordinatedLiabilitiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the dated subordinated liabilities of the entity measured at amortised cost using the effective interest method under IFRS 9.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DatedSubordinatedLiabilitiesMember" xlink:href="bbplc-20251231.xsd#bbplc_DatedSubordinatedLiabilitiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DatedSubordinatedLiabilitiesMember" xlink:to="lab_bbplc_DatedSubordinatedLiabilitiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes_019c29a6-4828-76ee-8ec3-a71869a620e5_negatedLabel_en-US" xlink:label="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Vesting of employee share schemes</link:label>
    <link:label id="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes_019c29a6-4828-7837-a31f-eccce3364d6e_negatedTerseLabel_en-US" xlink:label="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Vesting of shares under employee share schemes</link:label>
    <link:label id="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes_label_en-US" xlink:label="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments For Vesting Of Shares Under Employee Share Schemes</link:label>
    <link:label id="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes_documentation_en-US" xlink:label="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash outflow for the vesting of shares under employee share schemes.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes" xlink:href="bbplc-20251231.xsd#bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes" xlink:to="lab_bbplc_PaymentsForVestingOfSharesUnderEmployeeShareSchemes" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems_019c29a6-4827-746d-b762-5e8b2bf2ff55_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of fair value of plan assets [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value of plan assets [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems" xlink:to="lab_ifrs-full_DisclosureOfFairValueOfPlanAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_019c29a6-49d1-7810-aa5c-5f7c0929694e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of assets and liabilities held at fair value, disaggregated by valuation technique and by product type</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable_019c29a6-48ae-7422-a436-12e2ef86fe7d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of information for cash-generating units [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of information for cash-generating units [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable" xlink:to="lab_ifrs-full_DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable_019c29a6-4828-7f03-80dd-a54bcda67ed8_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of nature and extent of risks arising from financial instruments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:to="lab_ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfReservesWithinEquityAbstract_019c29a6-4931-7128-b7c5-a2f83b4b1556_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesWithinEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity [abstract]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReservesWithinEquityAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesWithinEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReservesWithinEquityAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReservesWithinEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfReservesWithinEquityAbstract" xlink:to="lab_ifrs-full_DisclosureOfReservesWithinEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_USIntermediateHoldingCompanyTaxGroupMember_019c29a6-48ae-722b-ab8a-5d856022d27e_terseLabel_en-US" xlink:label="lab_bbplc_USIntermediateHoldingCompanyTaxGroupMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">US Intermediate Holding Company Tax Group ("IHC Tax Group")</link:label>
    <link:label id="lab_bbplc_USIntermediateHoldingCompanyTaxGroupMember_label_en-US" xlink:label="lab_bbplc_USIntermediateHoldingCompanyTaxGroupMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Intermediate Holding Company Tax Group [Member]</link:label>
    <link:label id="lab_bbplc_USIntermediateHoldingCompanyTaxGroupMember_documentation_en-US" xlink:label="lab_bbplc_USIntermediateHoldingCompanyTaxGroupMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Intermediate Holding company.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_USIntermediateHoldingCompanyTaxGroupMember" xlink:href="bbplc-20251231.xsd#bbplc_USIntermediateHoldingCompanyTaxGroupMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_USIntermediateHoldingCompanyTaxGroupMember" xlink:to="lab_bbplc_USIntermediateHoldingCompanyTaxGroupMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialGuaranteeContractsMember_019c29a6-48ae-74cf-90fd-f89f5dce14fb_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial guarantee contracts</link:label>
    <link:label id="lab_ifrs-full_FinancialGuaranteeContractsMember_019c29a6-48ae-7169-82fb-ba35d755b781_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Contingent liabilities and financial guarantees</link:label>
    <link:label id="lab_ifrs-full_FinancialGuaranteeContractsMember_label_en-US" xlink:label="lab_ifrs-full_FinancialGuaranteeContractsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial guarantee contracts [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialGuaranteeContractsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialGuaranteeContractsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialGuaranteeContractsMember" xlink:to="lab_ifrs-full_FinancialGuaranteeContractsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019_019c29a6-48ae-7882-9a02-cd57cf3e92b6_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less: forfeited in the year, weighted average exercise price (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options forfeited in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:to="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_019c29a6-49d1-7357-b1af-29e35bb0e6e3_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit impairment charges/(releases)</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of impairment of assets [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" xlink:to="lab_ifrs-full_DisclosureOfImpairmentOfAssetsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract_019c29a6-48ae-72a8-a3e3-a776aa9b1d3a_terseLabel_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in net assets available for benefits [abstract]</link:label>
    <link:label id="lab_ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract_label_en-US" xlink:label="lab_ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation of changes in net assets available for benefits [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract" xlink:to="lab_ifrs-full_ReconciliationOfChangesInNetAssetsAvailableForBenefitsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer_019c29a6-4798-71e4-8e89-d3e2e2c59074_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets transferred to sponsored unconsolidated structured entities</link:label>
    <link:label id="lab_ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer_label_en-US" xlink:label="lab_ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets transferred to structured entities, at time of transfer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer" xlink:to="lab_ifrs-full_AssetsTransferredToStructuredEntitiesAtTimeOfTransfer" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncome_019c29a6-49d1-7b58-b370-9182c7162b6a_terseLabel_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current year</link:label>
    <link:label id="lab_ifrs-full_CurrentTaxExpenseIncome_label_en-US" xlink:label="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CurrentTaxExpenseIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CurrentTaxExpenseIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CurrentTaxExpenseIncome" xlink:to="lab_ifrs-full_CurrentTaxExpenseIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_MaturityPeriod_019c29a6-48ae-7637-aa16-821a68ed80e8_terseLabel_en-US" xlink:label="lab_bbplc_MaturityPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturity period</link:label>
    <link:label id="lab_bbplc_MaturityPeriod_label_en-US" xlink:label="lab_bbplc_MaturityPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity Period</link:label>
    <link:label id="lab_bbplc_MaturityPeriod_documentation_en-US" xlink:label="lab_bbplc_MaturityPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Maturity Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_MaturityPeriod" xlink:href="bbplc-20251231.xsd#bbplc_MaturityPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_MaturityPeriod" xlink:to="lab_bbplc_MaturityPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgingInstrumentsDomain_019c29a6-4798-7d31-873e-5e483443fd14_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Hedging instruments [domain]</link:label>
    <link:label id="lab_ifrs-full_HedgingInstrumentsDomain_label_en-US" xlink:label="lab_ifrs-full_HedgingInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedging instruments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgingInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgingInstrumentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgingInstrumentsDomain" xlink:to="lab_ifrs-full_HedgingInstrumentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AfricaAndMiddleEastMember_019c29a6-4828-7a33-b40d-92da5318b42a_terseLabel_en-US" xlink:label="lab_bbplc_AfricaAndMiddleEastMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Africa and Middle East</link:label>
    <link:label id="lab_bbplc_AfricaAndMiddleEastMember_label_en-US" xlink:label="lab_bbplc_AfricaAndMiddleEastMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Africa And Middle East [Member]</link:label>
    <link:label id="lab_bbplc_AfricaAndMiddleEastMember_documentation_en-US" xlink:label="lab_bbplc_AfricaAndMiddleEastMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Africa and the middle east.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AfricaAndMiddleEastMember" xlink:href="bbplc-20251231.xsd#bbplc_AfricaAndMiddleEastMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AfricaAndMiddleEastMember" xlink:to="lab_bbplc_AfricaAndMiddleEastMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_019c29a6-4798-7108-92d0-f94500c38a98_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of functional currency of the operation</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of effect of changes in foreign exchange rates [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ImpairmentAllowanceCoverageRatio_019c29a6-48ae-7441-9d71-85ca780d7f78_terseLabel_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceCoverageRatio" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Coverage ratio</link:label>
    <link:label id="lab_bbplc_ImpairmentAllowanceCoverageRatio_label_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceCoverageRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment Allowance Coverage Ratio</link:label>
    <link:label id="lab_bbplc_ImpairmentAllowanceCoverageRatio_documentation_en-US" xlink:label="lab_bbplc_ImpairmentAllowanceCoverageRatio" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The impairment allowances as a percentage of Credit Risk Loan balances. The impairment allowance is the aggregate of the identified and unidentified impairment (UI) balances.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ImpairmentAllowanceCoverageRatio" xlink:href="bbplc-20251231.xsd#bbplc_ImpairmentAllowanceCoverageRatio"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ImpairmentAllowanceCoverageRatio" xlink:to="lab_bbplc_ImpairmentAllowanceCoverageRatio" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherSubsidiariesMember_019c29a6-48ae-75b8-a037-65c639584d1e_terseLabel_en-US" xlink:label="lab_bbplc_OtherSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other subsidiaries</link:label>
    <link:label id="lab_bbplc_OtherSubsidiariesMember_019c29a6-48ae-73bb-92f2-c06bb417606f_verboseLabel_en-US" xlink:label="lab_bbplc_OtherSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other (outside the UK and US tax groups)</link:label>
    <link:label id="lab_bbplc_OtherSubsidiariesMember_label_en-US" xlink:label="lab_bbplc_OtherSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Subsidiaries [Member]</link:label>
    <link:label id="lab_bbplc_OtherSubsidiariesMember_documentation_en-US" xlink:label="lab_bbplc_OtherSubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other subsidiaries within the group.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherSubsidiariesMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherSubsidiariesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherSubsidiariesMember" xlink:to="lab_bbplc_OtherSubsidiariesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember_019c29a6-4828-76ed-9c21-4fe95b7fd758_terseLabel_en-US" xlink:label="lab_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Bloomberg Commodity Index Total ReturnSM&#160;ETN</link:label>
    <link:label id="lab_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember_label_en-US" xlink:label="lab_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Bloomberg Commodity Index Total ReturnSM&#160;ETN [Member]</link:label>
    <link:label id="lab_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember_documentation_en-US" xlink:label="lab_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">iPath&#174;&#160;Bloomberg Commodity Index Total ReturnSM&#160;ETN</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember" xlink:href="bbplc-20251231.xsd#bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember" xlink:to="lab_bbplc_IPathBloombergCommodityIndexTotalReturnSMETNMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwillAbstract_019c29a6-49d1-75e5-a3d2-bb994a7f4867_terseLabel_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Intangible assets and goodwill [abstract]</link:label>
    <link:label id="lab_ifrs-full_IntangibleAssetsAndGoodwillAbstract_label_en-US" xlink:label="lab_ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intangible assets and goodwill [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IntangibleAssetsAndGoodwillAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:to="lab_ifrs-full_IntangibleAssetsAndGoodwillAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SettlementsFairValueMeasurementAssets_019c29a6-4931-7dd1-bdb1-dac728138eae_negatedLabel_en-US" xlink:label="lab_ifrs-full_SettlementsFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Settlements, fair value measurement, assets</link:label>
    <link:label id="lab_ifrs-full_SettlementsFairValueMeasurementAssets_label_en-US" xlink:label="lab_ifrs-full_SettlementsFairValueMeasurementAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Settlements, fair value measurement, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SettlementsFairValueMeasurementAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SettlementsFairValueMeasurementAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SettlementsFairValueMeasurementAssets" xlink:to="lab_ifrs-full_SettlementsFairValueMeasurementAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_PRATransitionalRegulatoryCapital_019c29a6-4931-718d-aea0-9d887014a2ad_terseLabel_en-US" xlink:label="lab_bbplc_PRATransitionalRegulatoryCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total regulatory capital</link:label>
    <link:label id="lab_bbplc_PRATransitionalRegulatoryCapital_label_en-US" xlink:label="lab_bbplc_PRATransitionalRegulatoryCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PRA Transitional Regulatory Capital</link:label>
    <link:label id="lab_bbplc_PRATransitionalRegulatoryCapital_documentation_en-US" xlink:label="lab_bbplc_PRATransitionalRegulatoryCapital" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of PRA (a subsidiary of the Bank of England) transitional regulatory capital required of the entity.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_PRATransitionalRegulatoryCapital" xlink:href="bbplc-20251231.xsd#bbplc_PRATransitionalRegulatoryCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_PRATransitionalRegulatoryCapital" xlink:to="lab_bbplc_PRATransitionalRegulatoryCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LegalProceedingsProvisionMember_019c29a6-49d1-76ac-af09-281c1fd506f4_terseLabel_en-US" xlink:label="lab_ifrs-full_LegalProceedingsProvisionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Legal, competition and regulatory matters</link:label>
    <link:label id="lab_ifrs-full_LegalProceedingsProvisionMember_label_en-US" xlink:label="lab_ifrs-full_LegalProceedingsProvisionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal proceedings provision [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LegalProceedingsProvisionMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LegalProceedingsProvisionMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LegalProceedingsProvisionMember" xlink:to="lab_ifrs-full_LegalProceedingsProvisionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_019c29a6-48ae-77c3-a1c7-199a6779ab0e_verboseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Three to four years</link:label>
    <link:label id="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_019c29a6-48ae-7ce2-ae31-5b4afa89ec23_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2028</link:label>
    <link:label id="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than three years and not later than four years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember"/>
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    <link:label id="lab_ifrs-full_DepositsAtAmortisedCost_019c29a6-4828-7995-8b3e-f9bd58e73a49_verboseLabel_en-US" xlink:label="lab_ifrs-full_DepositsAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deposits at amortised cost from bank and customers</link:label>
    <link:label id="lab_ifrs-full_DepositsAtAmortisedCost_019c29a6-4828-7a36-9e09-40cd58c8a21d_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DepositsAtAmortisedCost" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Deposits at amortised cost</link:label>
    <link:label id="lab_ifrs-full_DepositsAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_DepositsAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DepositsAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DepositsAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DepositsAtAmortisedCost" xlink:to="lab_ifrs-full_DepositsAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract_019c29a6-49d1-77f9-9259-58482167ecf6_terseLabel_en-US" xlink:label="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract]</link:label>
    <link:label id="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net financial liabilities subject to offsetting, enforceable master netting arrangements or similar agreements in statement of financial position [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract" xlink:to="lab_ifrs-full_NetFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPositionAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage_019c29a6-48ae-7819-bf08-03409835751b_terseLabel_en-US" xlink:label="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of economic scenarios, percentage</link:label>
    <link:label id="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage_label_en-US" xlink:label="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Number Of Economic Scenarios To Calculate ECL, As A Percentage</link:label>
    <link:label id="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage_documentation_en-US" xlink:label="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total Number Of Economic Scenarios To Calculate ECL, As A Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage" xlink:href="bbplc-20251231.xsd#bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage" xlink:to="lab_bbplc_TotalNumberOfEconomicScenariosToCalculateECLAsAPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership_019c29a6-4798-79f9-8a0e-5b09dfd25521_terseLabel_en-US" xlink:label="lab_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mortality assumption, percentage</link:label>
    <link:label id="lab_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership_label_en-US" xlink:label="lab_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Life Expectancy, Percentage Of Population Of The Membership</link:label>
    <link:label id="lab_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership_documentation_en-US" xlink:label="lab_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Life Expectancy, Percentage Of Population Of The Membership</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership" xlink:href="bbplc-20251231.xsd#bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership" xlink:to="lab_bbplc_LifeExpectancyPercentageOfPopulationOfTheMembership" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MiscellaneousOtherOperatingExpense_019c29a6-4930-7e55-b00b-e8806a17f660_terseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other administration and general expenses</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousOtherOperatingExpense_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous other operating expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousOtherOperatingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherOperatingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousOtherOperatingExpense" xlink:to="lab_ifrs-full_MiscellaneousOtherOperatingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk_019c29a6-4931-7a00-a836-b1936d974c4a_terseLabel_en-US" xlink:label="lab_ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of maximum exposure and effects of collateral and other credit enhancements</link:label>
    <link:label id="lab_ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk_label_en-US" xlink:label="lab_ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Summary quantitative data about entity's exposure to risk [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk" xlink:to="lab_ifrs-full_SummaryQuantitativeDataAboutEntitysExposureToRisk" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ForeignCountriesMember_019c29a6-4931-774c-96c9-91c980fe3779_terseLabel_en-US" xlink:label="lab_ifrs-full_ForeignCountriesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign countries</link:label>
    <link:label id="lab_ifrs-full_ForeignCountriesMember_label_en-US" xlink:label="lab_ifrs-full_ForeignCountriesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign countries [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ForeignCountriesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ForeignCountriesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ForeignCountriesMember" xlink:to="lab_ifrs-full_ForeignCountriesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis_019c29a6-4828-7351-ace9-d39af9ed18bb_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale [axis]</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities classified as held for sale [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:to="lab_ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember_019c29a6-4931-7464-8c91-fb7a3ad71b0e_terseLabel_en-US" xlink:label="lab_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">8.500% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:label id="lab_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember_label_en-US" xlink:label="lab_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">8.500% Perpetual Subordinated Contingent Convertible Securities [Member]</link:label>
    <link:label id="lab_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">8.500% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:to="lab_bbplc_A8.500PerpetualSubordinatedContingentConvertibleSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfUnrealisedGainsLossesRecognisedOnAssetsAndLiabilitiesTableTextBlock_019c29a6-4828-7571-a0ac-26e7fe5e2965_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfUnrealisedGainsLossesRecognisedOnAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of unrealised gains and losses on Level 3 financial assets and liabilities</link:label>
    <link:label id="lab_bbplc_DisclosureOfUnrealisedGainsLossesRecognisedOnAssetsAndLiabilitiesTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfUnrealisedGainsLossesRecognisedOnAssetsAndLiabilitiesTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Unrealised Gains (Losses) Recognised On Assets And Liabilities [Table Text Block]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfUnrealisedGainsLossesRecognisedOnAssetsAndLiabilitiesTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfUnrealisedGainsLossesRecognisedOnAssetsAndLiabilitiesTableTextBlock"/>
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    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_019c29a6-48ae-7b81-9cce-ebbc92d672f5_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss"/>
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    <link:label id="lab_bbplc_A6375PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_019c29a6-48ae-7141-97c6-99b1909258e6_terseLabel_en-US" xlink:label="lab_bbplc_A6375PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">6.375% Perpetual Subordinated Contingent Convertible Securities</link:label>
    <link:label id="lab_bbplc_A6375PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_label_en-US" xlink:label="lab_bbplc_A6375PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">6.375% Perpetual Subordinated Contingent Convertible Securities Due 2025 [Member]</link:label>
    <link:label id="lab_bbplc_A6375PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member_documentation_en-US" xlink:label="lab_bbplc_A6375PerpetualSubordinatedContingentConvertibleSecuritiesDue2025Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the 6.375% GBP denominated currency, Fixed Rate Resetting Perpetual Subordinated Contingent Convertible Securities of the entity, with an initial call date of 2025.</link:label>
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    <link:label id="lab_ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety_019c29a6-48ae-7777-87f5-2612a6f073c7_terseLabel_en-US" xlink:label="lab_ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets, fair value</link:label>
    <link:label id="lab_ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety_019c29a6-48ae-71d8-8761-4920db0af59c_verboseLabel_en-US" xlink:label="lab_ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Transferred assets, fair value</link:label>
    <link:label id="lab_ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety_label_en-US" xlink:label="lab_ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value of transferred financial assets that are not derecognised in their entirety</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FairValueOfTransferredFinancialAssetsThatAreNotDerecognisedInTheirEntirety"/>
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    <link:label id="lab_ifrs-full_JointVenturesAxis_019c29a6-4930-71e7-b18e-521a722b661c_terseLabel_en-US" xlink:label="lab_ifrs-full_JointVenturesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint ventures [axis]</link:label>
    <link:label id="lab_ifrs-full_JointVenturesAxis_label_en-US" xlink:label="lab_ifrs-full_JointVenturesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint ventures [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_JointVenturesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_JointVenturesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_JointVenturesAxis" xlink:to="lab_ifrs-full_JointVenturesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_BorrowingsByNameDomain_019c29a6-48ae-7249-a41e-bc3075fc2aef_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Borrowings by name [domain]</link:label>
    <link:label id="lab_ifrs-full_BorrowingsByNameDomain_label_en-US" xlink:label="lab_ifrs-full_BorrowingsByNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings by name [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsByNameDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsByNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_BorrowingsByNameDomain" xlink:to="lab_ifrs-full_BorrowingsByNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TradeReceivablesMember_019c29a6-4930-7029-bb3c-dad1e616ea1a_verboseLabel_en-US" xlink:label="lab_ifrs-full_TradeReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Trade receivables</link:label>
    <link:label id="lab_ifrs-full_TradeReceivablesMember_019c29a6-4930-7ccc-b8ae-bb831648a4bb_terseLabel_en-US" xlink:label="lab_ifrs-full_TradeReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash collateral</link:label>
    <link:label id="lab_ifrs-full_TradeReceivablesMember_label_en-US" xlink:label="lab_ifrs-full_TradeReceivablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade receivables [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TradeReceivablesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TradeReceivablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TradeReceivablesMember" xlink:to="lab_ifrs-full_TradeReceivablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems_019c29a6-4930-735e-bab0-39e6679fd406_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of risk management strategy related to hedge accounting [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of risk management strategy related to hedge accounting [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems" xlink:to="lab_ifrs-full_DisclosureOfRiskManagementStrategyRelatedToHedgeAccountingLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilities_019c29a6-48ae-7a1b-8806-459b14a057c0_terseLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilities_019c29a6-48ae-7fcb-8a2a-6ca963350077_negatedLabel_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liability</link:label>
    <link:label id="lab_ifrs-full_DeferredTaxLiabilities_label_en-US" xlink:label="lab_ifrs-full_DeferredTaxLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DeferredTaxLiabilities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DeferredTaxLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DeferredTaxLiabilities" xlink:to="lab_ifrs-full_DeferredTaxLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis_019c29a6-49d1-7e87-b156-c61f05819c76_terseLabel_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets [axis]</link:label>
    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:to="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_019c29a6-48ae-75bf-877e-607cfef10beb_negatedNetLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="resource" xml:lang="en-US">Corporate income tax paid</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_019c29a6-48ae-7a49-af25-b556179bee47_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Corporate income tax</link:label>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_label_en-US" xlink:label="lab_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income taxes paid (refund), classified as operating activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:to="lab_ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InvestmentProperty_019c29a6-4931-7734-addf-b964ca269fa3_terseLabel_en-US" xlink:label="lab_ifrs-full_InvestmentProperty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment property</link:label>
    <link:label id="lab_ifrs-full_InvestmentProperty_label_en-US" xlink:label="lab_ifrs-full_InvestmentProperty" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment property</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InvestmentProperty" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_InvestmentProperty"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InvestmentProperty" xlink:to="lab_ifrs-full_InvestmentProperty" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AssumptionForFutureMortalityImprovementsPercentage_019c29a6-4931-725e-bb3c-74416c828902_terseLabel_en-US" xlink:label="lab_bbplc_AssumptionForFutureMortalityImprovementsPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Future mortality improvement percentage</link:label>
    <link:label id="lab_bbplc_AssumptionForFutureMortalityImprovementsPercentage_label_en-US" xlink:label="lab_bbplc_AssumptionForFutureMortalityImprovementsPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assumption For Future Mortality Improvements, Percentage</link:label>
    <link:label id="lab_bbplc_AssumptionForFutureMortalityImprovementsPercentage_documentation_en-US" xlink:label="lab_bbplc_AssumptionForFutureMortalityImprovementsPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Assumption For Future Mortality Improvements, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AssumptionForFutureMortalityImprovementsPercentage" xlink:href="bbplc-20251231.xsd#bbplc_AssumptionForFutureMortalityImprovementsPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AssumptionForFutureMortalityImprovementsPercentage" xlink:to="lab_bbplc_AssumptionForFutureMortalityImprovementsPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_CapitalLossesMember_019c29a6-4930-70f5-a17a-270aeb09427c_terseLabel_en-US" xlink:label="lab_bbplc_CapitalLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital losses</link:label>
    <link:label id="lab_bbplc_CapitalLossesMember_label_en-US" xlink:label="lab_bbplc_CapitalLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Losses [Member]</link:label>
    <link:label id="lab_bbplc_CapitalLossesMember_documentation_en-US" xlink:label="lab_bbplc_CapitalLossesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for capital losses that have been received and are carried forward for use against future taxable profit.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_CapitalLossesMember" xlink:href="bbplc-20251231.xsd#bbplc_CapitalLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_CapitalLossesMember" xlink:to="lab_bbplc_CapitalLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfClaimsPendingResolution_019c29a6-49d1-7ba0-909d-08d385dc484f_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfClaimsPendingResolution" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of claims pending resolution</link:label>
    <link:label id="lab_bbplc_NumberOfClaimsPendingResolution_label_en-US" xlink:label="lab_bbplc_NumberOfClaimsPendingResolution" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Claims Pending Resolution</link:label>
    <link:label id="lab_bbplc_NumberOfClaimsPendingResolution_documentation_en-US" xlink:label="lab_bbplc_NumberOfClaimsPendingResolution" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of claims pending resolution</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfClaimsPendingResolution" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfClaimsPendingResolution"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfClaimsPendingResolution" xlink:to="lab_bbplc_NumberOfClaimsPendingResolution" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_019c29a6-49d1-7658-9dfa-38577a45d03d_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [line items]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of subsidiaries [line items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:to="lab_ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory_019c29a6-49d1-727d-9faf-0e7772f7ffdc_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of Level 3 liabilities</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of fair value measurement of liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract_019c29a6-4828-79f3-9cdb-c7e0505252bd_terseLabel_en-US" xlink:label="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts subject to enforceable master netting arrangement or similar agreement not set off against financial assets [abstract]</link:label>
    <link:label id="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract_label_en-US" xlink:label="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amounts subject to enforceable master netting arrangement or similar agreement not set off against financial assets [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract" xlink:to="lab_ifrs-full_AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesAxis_019c29a6-4798-75e4-8ef4-5a4029ac7731_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets and liabilities [axis]</link:label>
    <link:label id="lab_ifrs-full_AssetsAndLiabilitiesAxis_label_en-US" xlink:label="lab_ifrs-full_AssetsAndLiabilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets and liabilities [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsAndLiabilitiesAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsAndLiabilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsAndLiabilitiesAxis" xlink:to="lab_ifrs-full_AssetsAndLiabilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities_019c29a6-4798-74d1-b7fc-59eb3d40ad72_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flow increased for early extension option expected to be exercised</link:label>
    <link:label id="lab_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities_label_en-US" xlink:label="lab_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase For Extension Option Expected To Be Exercised, Gross Lease Liabilities</link:label>
    <link:label id="lab_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities_documentation_en-US" xlink:label="lab_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase For Extension Option Expected To Be Exercised, Gross Lease Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:to="lab_bbplc_IncreaseForExtensionOptionExpectedToBeExercisedGrossLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember_019c29a6-4798-71ee-8ef1-1f59978590bf_terseLabel_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase agreements and other similar secured lending</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember_label_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reverse Repurchase Agreements And Other Similar Secured Lending [Member]</link:label>
    <link:label id="lab_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember_documentation_en-US" xlink:label="lab_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for repurchase agreements and other similar secured lending.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember" xlink:href="bbplc-20251231.xsd#bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember" xlink:to="lab_bbplc_ReverseRepurchaseAgreementsAndOtherSimilarSecuredLendingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings_019c29a6-48ae-7630-94b7-2d789a5f7267_negatedLabel_en-US" xlink:label="lab_bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax relief on holdings of inflation-linked government bonds</link:label>
    <link:label id="lab_bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings_label_en-US" xlink:label="lab_bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Of Tax Credit, Inflation Linked Government Bonds Holdings</link:label>
    <link:label id="lab_bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings_documentation_en-US" xlink:label="lab_bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Effect Of Tax Credit, Inflation Linked Government Bonds Holdings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings" xlink:href="bbplc-20251231.xsd#bbplc_TaxEffectOfTaxCreditInflationLinkedGovernmentBondsHoldings"/>
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    <link:label id="lab_bbplc_EBITDAMultipleMeasurementInputMember_documentation_en-US" xlink:label="lab_bbplc_EBITDAMultipleMeasurementInputMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">EBITDA Multiple, Measurement Input</link:label>
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    <link:label id="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain_label_en-US" xlink:label="lab_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment including right-of-use assets [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_PropertyPlantAndEquipmentIncludingRightofuseAssetsDomain"/>
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    <link:label id="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_019c29a6-48ae-7e5a-9b99-473237a7fc4b_negatedLabel_en-US" xlink:label="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Redemptions</link:label>
    <link:label id="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of borrowings, classified as financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities"/>
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    <link:label id="lab_ifrs-full_MiscellaneousOtherProvisionsMember_019c29a6-4828-72f8-be37-56efc6e323c7_verboseLabel_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherProvisionsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Sundry provisions</link:label>
    <link:label id="lab_ifrs-full_MiscellaneousOtherProvisionsMember_label_en-US" xlink:label="lab_ifrs-full_MiscellaneousOtherProvisionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous other provisions [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MiscellaneousOtherProvisionsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MiscellaneousOtherProvisionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MiscellaneousOtherProvisionsMember" xlink:to="lab_ifrs-full_MiscellaneousOtherProvisionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_GovernmentAndGovernmentSponsoredDebtMember_019c29a6-4798-72ca-a0d1-c8130707937e_terseLabel_en-US" xlink:label="lab_bbplc_GovernmentAndGovernmentSponsoredDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Government and Government sponsored debt</link:label>
    <link:label id="lab_bbplc_GovernmentAndGovernmentSponsoredDebtMember_label_en-US" xlink:label="lab_bbplc_GovernmentAndGovernmentSponsoredDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Government And Government Sponsored Debt [Member]</link:label>
    <link:label id="lab_bbplc_GovernmentAndGovernmentSponsoredDebtMember_documentation_en-US" xlink:label="lab_bbplc_GovernmentAndGovernmentSponsoredDebtMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Government And Government Sponsored Debt</link:label>
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    <link:label id="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections_019c29a6-48ae-75a9-b6da-871671879b2e_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Growth rate</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Growth rate used to extrapolate cash flow projections</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17_019c29a6-4798-7ddb-a670-b8599192ed2a_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseDecreaseInProfitLossDueToReasonablyPossibleIncreaseInRiskExposureThatArisesFromContractsWithinScopeOfIFRS17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (decrease) in profit for the year due to reasonable possibly increase</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_019c29a6-4828-7d51-a76e-d5e39cbb1cc4_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of called up share capital, allotted and fully paid</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of classes of share capital [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalExplanatory"/>
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    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable_019c29a6-4930-77ae-bfbb-3e7053a29045_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about hedging instruments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutHedgingInstrumentsTable"/>
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    <link:label id="lab_ifrs-full_AccumulatedImpairmentMember_019c29a6-48ae-743b-b3d8-18e70aca7740_verboseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated impairment</link:label>
    <link:label id="lab_ifrs-full_AccumulatedImpairmentMember_019c29a6-48ae-7a29-bc85-5a9c7e60723a_netLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedImpairmentMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Impairment allowance</link:label>
    <link:label id="lab_ifrs-full_AccumulatedImpairmentMember_019c29a6-48ae-7952-ab59-217ae227cb98_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated impairment</link:label>
    <link:label id="lab_ifrs-full_AccumulatedImpairmentMember_label_en-US" xlink:label="lab_ifrs-full_AccumulatedImpairmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated impairment [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedImpairmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedImpairmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedImpairmentMember" xlink:to="lab_ifrs-full_AccumulatedImpairmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_019c29a6-48ae-74b9-8954-f6e723e4f3c9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contingent liabilities and commitments</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of commitments and contingent liabilities [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory"/>
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    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_019c29a6-4798-70f4-a831-ed68906dd9db_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of depreciation rates</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory"/>
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    <link:label id="lab_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_019c29a6-49d1-7f84-8290-15bd4b6f9a9e_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reserves</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of reserves within equity [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfReservesAndOtherEquityInterestExplanatory"/>
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    <link:label id="lab_bbplc_ReconciliationOfOptionsAndAwardPlansRollForward_019c29a6-49d1-7ae4-b896-7c5a2ed41b2d_terseLabel_en-US" xlink:label="lab_bbplc_ReconciliationOfOptionsAndAwardPlansRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reconciliation of options and award plans [Roll Forward]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfOptionsAndAwardPlansRollForward_label_en-US" xlink:label="lab_bbplc_ReconciliationOfOptionsAndAwardPlansRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reconciliation Of Options And Award Plans [Roll Forward]</link:label>
    <link:label id="lab_bbplc_ReconciliationOfOptionsAndAwardPlansRollForward_documentation_en-US" xlink:label="lab_bbplc_ReconciliationOfOptionsAndAwardPlansRollForward" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Reconciliation Of Options And Award Plans</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ReconciliationOfOptionsAndAwardPlansRollForward" xlink:href="bbplc-20251231.xsd#bbplc_ReconciliationOfOptionsAndAwardPlansRollForward"/>
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    <link:label id="lab_ifrs-full_BorrowingsInterestRate_019c29a6-49d1-7dd6-ad3f-793b4fb332bc_terseLabel_en-US" xlink:label="lab_ifrs-full_BorrowingsInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate</link:label>
    <link:label id="lab_ifrs-full_BorrowingsInterestRate_label_en-US" xlink:label="lab_ifrs-full_BorrowingsInterestRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings, interest rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_BorrowingsInterestRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_BorrowingsInterestRate"/>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_019c29a6-4930-7087-978f-aa49146edf9e_totalLabel_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash from investing activities</link:label>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_label_en-US" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from (used in) investing activities</link:label>
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    <link:label id="lab_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of derivative financial instruments [text block]</link:label>
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    <link:label id="lab_bbplc_VestingPeriodTwoMember_019c3071-4b5c-7597-a62f-653a53d88e09_terseLabel_en-US" xlink:label="lab_bbplc_VestingPeriodTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period two</link:label>
    <link:label id="lab_bbplc_VestingPeriodTwoMember_label_en-US" xlink:label="lab_bbplc_VestingPeriodTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting Period Two [Member]</link:label>
    <link:label id="lab_bbplc_VestingPeriodTwoMember_documentation_en-US" xlink:label="lab_bbplc_VestingPeriodTwoMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Vesting Period Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_VestingPeriodTwoMember" xlink:href="bbplc-20251231.xsd#bbplc_VestingPeriodTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_VestingPeriodTwoMember" xlink:to="lab_bbplc_VestingPeriodTwoMember" xlink:type="arc" order="1"/>
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    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TwentyFiveBasisPointsSensitivityAnalysisFairValueThroughOtherComprehensiveIncomeMember" xlink:href="bbplc-20251231.xsd#bbplc_TwentyFiveBasisPointsSensitivityAnalysisFairValueThroughOtherComprehensiveIncomeMember"/>
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    <link:label id="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory_019c29a6-48ae-7c04-b13a-2212f92e3b7f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Risk Management</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory"/>
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    <link:label id="lab_ifrs-full_OtherLongtermBenefits_019c29a6-48ae-791c-9e9e-d4489786e400_terseLabel_en-US" xlink:label="lab_ifrs-full_OtherLongtermBenefits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Performance costs</link:label>
    <link:label id="lab_ifrs-full_OtherLongtermBenefits_label_en-US" xlink:label="lab_ifrs-full_OtherLongtermBenefits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other long-term employee benefits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OtherLongtermBenefits" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OtherLongtermBenefits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OtherLongtermBenefits" xlink:to="lab_ifrs-full_OtherLongtermBenefits" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities_019c29a6-4828-7817-8312-2c6d4b933bab_terseLabel_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Favorable changes, Income statement</link:label>
    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities_label_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase In Fair Value Measurement Due To Change In Multiple Unobservable Inputs To Reflect Reasonably Possible Alternative Assumptions, Recognised In Profit Or Loss, After Tax, Assets (Liabilities)</link:label>
    <link:label id="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities_documentation_en-US" xlink:label="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of increase in the fair value measurement of assets (liabilities), recognised in profit or loss after tax, due to a change in multiple unobservable inputs to reflect reasonably possible alternative assumptions. [Refer: Tax income (expense)]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:href="bbplc-20251231.xsd#bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:to="lab_bbplc_IncreaseInFairValueMeasurementDueToChangeInMultipleUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsRecognisedInProfitOrLossAfterTaxAssetsLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EmployeeBenefitsExpense_019c29a6-48ae-726a-9bf8-aef1318d3abc_negatedLabel_en-US" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Staff costs</link:label>
    <link:label id="lab_ifrs-full_EmployeeBenefitsExpense_019c29a6-48ae-7129-be22-ef9c5a49de66_totalLabel_en-US" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total staff costs</link:label>
    <link:label id="lab_ifrs-full_EmployeeBenefitsExpense_label_en-US" xlink:label="lab_ifrs-full_EmployeeBenefitsExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee benefits expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EmployeeBenefitsExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EmployeeBenefitsExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EmployeeBenefitsExpense" xlink:to="lab_ifrs-full_EmployeeBenefitsExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_019c29a6-49d1-72e3-9c4c-c276aaafb358_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Amortisation charge</link:label>
    <link:label id="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill_label_en-US" xlink:label="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortisation, intangible assets other than goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:to="lab_ifrs-full_AmortisationIntangibleAssetsOtherThanGoodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms_019c29a6-48ae-7f83-b314-7b79d71474c3_terseLabel_en-US" xlink:label="lab_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of leases with variable lease payment terms</link:label>
    <link:label id="lab_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms_label_en-US" xlink:label="lab_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Leases With Variable Lease Payment Terms</link:label>
    <link:label id="lab_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms_documentation_en-US" xlink:label="lab_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of leases with variable lease payment terms based on market based pricing adjustments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms" xlink:href="bbplc-20251231.xsd#bbplc_NumberOfLeasesWithVariableLeasePaymentTerms"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms" xlink:to="lab_bbplc_NumberOfLeasesWithVariableLeasePaymentTerms" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LifetimeExpectedCreditLossesMember_019c29a6-49d1-798a-8d2d-170938c64ad3_terseLabel_en-US" xlink:label="lab_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lifetime expected credit losses</link:label>
    <link:label id="lab_ifrs-full_LifetimeExpectedCreditLossesMember_label_en-US" xlink:label="lab_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lifetime expected credit losses [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LifetimeExpectedCreditLossesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:to="lab_ifrs-full_LifetimeExpectedCreditLossesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssetsHeldForHedging_019c29a6-4828-7c8d-b8a2-8dbbfa198c02_verboseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssetsHeldForHedging" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Derivative assets held for held for risk management</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssetsHeldForHedging_019c29a6-4828-76f5-9859-0cc16623e9e9_terseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssetsHeldForHedging" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative financial assets held for hedging</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialAssetsHeldForHedging_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialAssetsHeldForHedging" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial assets held for hedging</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialAssetsHeldForHedging" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialAssetsHeldForHedging"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialAssetsHeldForHedging" xlink:to="lab_ifrs-full_DerivativeFinancialAssetsHeldForHedging" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsTable_019c29a6-4827-737e-86aa-a49498c3bb7f_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfOperatingSegmentsTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of operating segments [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:to="lab_ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement_019c29a6-48ae-7dd4-9f4f-f29e8b003acd_terseLabel_en-US" xlink:label="lab_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amounts not subject to enforceable netting arrangements</link:label>
    <link:label id="lab_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement_label_en-US" xlink:label="lab_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets Not Subject To Enforceable Master Netting Arrangement Or Similar Agreement</link:label>
    <link:label id="lab_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement_documentation_en-US" xlink:label="lab_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The financial assets that are not subject to an enforceable master netting arrangement or similar agreement.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement" xlink:href="bbplc-20251231.xsd#bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement" xlink:to="lab_bbplc_FinancialAssetsNotSubjectToEnforceableMasterNettingArrangementOrSimilarAgreement" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SubsidiariesMember_019c29a6-4798-7f97-9516-01c26c620400_terseLabel_en-US" xlink:label="lab_ifrs-full_SubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total for all subsidiaries</link:label>
    <link:label id="lab_ifrs-full_SubsidiariesMember_label_en-US" xlink:label="lab_ifrs-full_SubsidiariesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total for all subsidiaries [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SubsidiariesMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SubsidiariesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SubsidiariesMember" xlink:to="lab_ifrs-full_SubsidiariesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_EquityPriceRiskMember_019c29a6-4798-7610-bb8c-e8a43a27928a_verboseLabel_en-US" xlink:label="lab_ifrs-full_EquityPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Equity risk</link:label>
    <link:label id="lab_ifrs-full_EquityPriceRiskMember_019c29a6-4798-7049-91dc-ed1932cfa621_terseLabel_en-US" xlink:label="lab_ifrs-full_EquityPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity and stock index derivatives</link:label>
    <link:label id="lab_ifrs-full_EquityPriceRiskMember_019c29a6-4798-7f55-b205-01af427c6e9d_netLabel_en-US" xlink:label="lab_ifrs-full_EquityPriceRiskMember" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xml:lang="en-US">Equity derivatives</link:label>
    <link:label id="lab_ifrs-full_EquityPriceRiskMember_label_en-US" xlink:label="lab_ifrs-full_EquityPriceRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity price risk [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_EquityPriceRiskMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_EquityPriceRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_EquityPriceRiskMember" xlink:to="lab_ifrs-full_EquityPriceRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock_019c29a6-4931-73a3-a0df-0e9106a0357b_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of amounts included in the Group's financial statements by category</link:label>
    <link:label id="lab_bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Groups Financial Statements By Category [Table Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The disclosure of group's financial statement by category and related party.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfGroupsFinancialStatementsByCategoryTableTextBlock"/>
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    <link:label id="lab_ifrs-full_SegmentsAxis_019c29a6-49d1-7998-abb3-a45b215aea95_terseLabel_en-US" xlink:label="lab_ifrs-full_SegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [axis]</link:label>
    <link:label id="lab_ifrs-full_SegmentsAxis_label_en-US" xlink:label="lab_ifrs-full_SegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SegmentsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_SegmentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SegmentsAxis" xlink:to="lab_ifrs-full_SegmentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TypesOfRisksAxis_019c29a6-48ae-7e70-a48a-c877073e4ca4_terseLabel_en-US" xlink:label="lab_ifrs-full_TypesOfRisksAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Types of risks [axis]</link:label>
    <link:label id="lab_ifrs-full_TypesOfRisksAxis_label_en-US" xlink:label="lab_ifrs-full_TypesOfRisksAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Types of risks [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TypesOfRisksAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TypesOfRisksAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TypesOfRisksAxis" xlink:to="lab_ifrs-full_TypesOfRisksAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member_019c29a6-4930-76d1-b17d-b5d345fcc0ab_terseLabel_en-US" xlink:label="lab_bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">7.437% Fixed Rate Resetting Subordinated Callable Notes (USD 2,000m)</link:label>
    <link:label id="lab_bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member_label_en-US" xlink:label="lab_bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">7.437% Fixed Rate Resetting Senior Callable Notes, Due 2033 [Member]</link:label>
    <link:label id="lab_bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member_documentation_en-US" xlink:label="lab_bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">7.437% Fixed Rate Resetting Senior Callable Notes, Due 2033</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member" xlink:href="bbplc-20251231.xsd#bbplc_A7437FixedRateResettingSeniorCallableNotesDue2033Member"/>
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    <link:label id="lab_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_019c29a6-49d1-737d-8f03-6c8d43477fe3_negatedTerseLabel_en-US" xlink:label="lab_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Financial collateral</link:label>
    <link:label id="lab_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_label_en-US" xlink:label="lab_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Collateral Received Subject To Enforceable Master Netting Arrangement Or Similar Agreement Not Set Off Against Financial Assets</link:label>
    <link:label id="lab_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets_documentation_en-US" xlink:label="lab_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of financial collateral received that is subject to an enforceable master netting arrangement or similar agreement and that is not set off against financial assets. [Refer: Financial assets]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:to="lab_bbplc_FinancialCollateralReceivedSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForFairValueGainsLosses_019c29a6-48ae-78b8-9b6f-97fe5df549cc_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase/(decrease) in financial assets and liabilities at fair value through the income statement</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForFairValueGainsLosses_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for fair value losses (gains)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForFairValueGainsLosses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:to="lab_ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019_019c29a6-4931-747b-946d-1ab571a3ce28_terseLabel_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Exercised/released in the year, weighted average exercise price (in GBP per share)</link:label>
    <link:label id="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019_label_en-US" xlink:label="lab_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average exercise price of share options exercised in share-based payment arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019"/>
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    <link:label id="lab_ifrs-full_DebtInstrumentsHeld_019c29a6-4931-756f-a2cb-172b524c6b2f_terseLabel_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsHeld" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt securities</link:label>
    <link:label id="lab_ifrs-full_DebtInstrumentsHeld_label_en-US" xlink:label="lab_ifrs-full_DebtInstrumentsHeld" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt instruments held</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DebtInstrumentsHeld" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DebtInstrumentsHeld"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DebtInstrumentsHeld" xlink:to="lab_ifrs-full_DebtInstrumentsHeld" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging_019c29a6-4930-7bfa-8b9d-888caba49fa9_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Derivative liabilities held for risk management</link:label>
    <link:label id="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging_label_en-US" xlink:label="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative financial liabilities held for hedging</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging" xlink:to="lab_ifrs-full_DerivativeFinancialLiabilitiesHeldForHedging" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_019c29a6-48ae-7ba8-b713-23086c4947a1_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Expected volatility</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected volatility, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:to="lab_ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_019c29a6-4828-76ac-a58f-90df3b45a09b_verboseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_019c29a6-4828-7ccd-8f44-0d93bf6f6b90_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total loans&#160;and&#160;advances at amortised cost</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial assets at amortised cost, category [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:to="lab_ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis_019c29a6-4930-7836-8043-42eb7db07148_terseLabel_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transferred financial assets that are not derecognised in their entirety [axis]</link:label>
    <link:label id="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis_label_en-US" xlink:label="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transferred financial assets that are not derecognised in their entirety [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis" xlink:to="lab_ifrs-full_FinancialAssetsWhichDoNotQualifyForDerecognitionAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ParValuePerShare_019c29a6-49d1-72ef-beb5-b894b5a4bb7a_terseLabel_en-US" xlink:label="lab_ifrs-full_ParValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Par value (in GBP/ USD per share)</link:label>
    <link:label id="lab_ifrs-full_ParValuePerShare_label_en-US" xlink:label="lab_ifrs-full_ParValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Par value per share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ParValuePerShare" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ParValuePerShare"/>
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    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract_019c29a6-49d1-7dd1-bee8-16720984e6a2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sensitivity of key judgements</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of sensitivity analysis for actuarial assumptions [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract" xlink:to="lab_ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SubsequentToDecember152034Member_019c29a6-48ae-7444-b5b8-928a35ddb0cb_terseLabel_en-US" xlink:label="lab_bbplc_SubsequentToDecember152034Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent to December 15, 2034</link:label>
    <link:label id="lab_bbplc_SubsequentToDecember152034Member_label_en-US" xlink:label="lab_bbplc_SubsequentToDecember152034Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent To December 15, 2034 [Member]</link:label>
    <link:label id="lab_bbplc_SubsequentToDecember152034Member_documentation_en-US" xlink:label="lab_bbplc_SubsequentToDecember152034Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Subsequent To December 15, 2034</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SubsequentToDecember152034Member" xlink:href="bbplc-20251231.xsd#bbplc_SubsequentToDecember152034Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SubsequentToDecember152034Member" xlink:to="lab_bbplc_SubsequentToDecember152034Member" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SecuritiesAssetsBackedMember_019c29a6-4930-7c47-b59a-1caa1bbbbf65_terseLabel_en-US" xlink:label="lab_bbplc_SecuritiesAssetsBackedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Asset backed securities</link:label>
    <link:label id="lab_bbplc_SecuritiesAssetsBackedMember_label_en-US" xlink:label="lab_bbplc_SecuritiesAssetsBackedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities, Assets Backed [Member]</link:label>
    <link:label id="lab_bbplc_SecuritiesAssetsBackedMember_documentation_en-US" xlink:label="lab_bbplc_SecuritiesAssetsBackedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Securities, Assets Backed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SecuritiesAssetsBackedMember" xlink:href="bbplc-20251231.xsd#bbplc_SecuritiesAssetsBackedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SecuritiesAssetsBackedMember" xlink:to="lab_bbplc_SecuritiesAssetsBackedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AverageForeignExchangeRateOfHedgingInstrument_019c29a6-4931-7898-8d49-f616db630bef_terseLabel_en-US" xlink:label="lab_bbplc_AverageForeignExchangeRateOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average foreign exchange rate of hedging instrument</link:label>
    <link:label id="lab_bbplc_AverageForeignExchangeRateOfHedgingInstrument_label_en-US" xlink:label="lab_bbplc_AverageForeignExchangeRateOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Average Foreign Exchange Rate Of Hedging Instrument</link:label>
    <link:label id="lab_bbplc_AverageForeignExchangeRateOfHedgingInstrument_documentation_en-US" xlink:label="lab_bbplc_AverageForeignExchangeRateOfHedgingInstrument" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Average Foreign Exchange Rate Of Hedging Instrument</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AverageForeignExchangeRateOfHedgingInstrument" xlink:href="bbplc-20251231.xsd#bbplc_AverageForeignExchangeRateOfHedgingInstrument"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AverageForeignExchangeRateOfHedgingInstrument" xlink:to="lab_bbplc_AverageForeignExchangeRateOfHedgingInstrument" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted_019c29a6-4828-734f-abba-ee1e284ccd23_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pure dividend yield rates</link:label>
    <link:label id="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted_label_en-US" xlink:label="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expected dividend as percentage, share options granted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:to="lab_ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_HoldingPeriodMember_019c42fd-ffab-77cf-8cfe-ad1b1fe44311_terseLabel_en-US" xlink:label="lab_bbplc_HoldingPeriodMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Holding period</link:label>
    <link:label id="lab_bbplc_HoldingPeriodMember_label_en-US" xlink:label="lab_bbplc_HoldingPeriodMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Holding Period [Member]</link:label>
    <link:label id="lab_bbplc_HoldingPeriodMember_documentation_en-US" xlink:label="lab_bbplc_HoldingPeriodMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Holding Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_HoldingPeriodMember" xlink:href="bbplc-20251231.xsd#bbplc_HoldingPeriodMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_HoldingPeriodMember" xlink:to="lab_bbplc_HoldingPeriodMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysBankPlcMember_019c29a6-4798-7eda-86de-c052b6d35f98_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysBankPlcMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Bank PLC</link:label>
    <link:label id="lab_bbplc_BarclaysBankPlcMember_label_en-US" xlink:label="lab_bbplc_BarclaysBankPlcMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Bank PLC [member]</link:label>
    <link:label id="lab_bbplc_BarclaysBankPlcMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysBankPlcMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the Barclays Bank PLC subsidiary.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysBankPlcMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysBankPlcMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysBankPlcMember" xlink:to="lab_bbplc_BarclaysBankPlcMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_019c29a6-4931-783a-b703-28e91a10110b_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseOfRestructuringActivities_019c29a6-4798-7567-b6c5-6d65c4254f91_terseLabel_en-US" xlink:label="lab_ifrs-full_ExpenseOfRestructuringActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Redundancy and restructuring</link:label>
    <link:label id="lab_ifrs-full_ExpenseOfRestructuringActivities_label_en-US" xlink:label="lab_ifrs-full_ExpenseOfRestructuringActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense of restructuring activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseOfRestructuringActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseOfRestructuringActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseOfRestructuringActivities" xlink:to="lab_ifrs-full_ExpenseOfRestructuringActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_019c29a6-4798-7f54-a7b3-a78a1042e113_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting for staff costs, pensions and post-retirement benefits</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for employee benefits [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FederalFundsRateMember_019c29a6-49d1-7df5-af80-658c29160b87_terseLabel_en-US" xlink:label="lab_bbplc_FederalFundsRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Federal funds rate</link:label>
    <link:label id="lab_bbplc_FederalFundsRateMember_label_en-US" xlink:label="lab_bbplc_FederalFundsRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Funds Rate [Member]</link:label>
    <link:label id="lab_bbplc_FederalFundsRateMember_documentation_en-US" xlink:label="lab_bbplc_FederalFundsRateMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for Federal funds rate.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FederalFundsRateMember" xlink:href="bbplc-20251231.xsd#bbplc_FederalFundsRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FederalFundsRateMember" xlink:to="lab_bbplc_FederalFundsRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherFinancialInstitutionsMember_019c29a6-4931-7f3c-a335-c1de2a36606d_terseLabel_en-US" xlink:label="lab_bbplc_OtherFinancialInstitutionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Financial Institutions</link:label>
    <link:label id="lab_bbplc_OtherFinancialInstitutionsMember_label_en-US" xlink:label="lab_bbplc_OtherFinancialInstitutionsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Financial Institutions [Member]</link:label>
    <link:label id="lab_bbplc_OtherFinancialInstitutionsMember_documentation_en-US" xlink:label="lab_bbplc_OtherFinancialInstitutionsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for other financial institutions.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherFinancialInstitutionsMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherFinancialInstitutionsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherFinancialInstitutionsMember" xlink:to="lab_bbplc_OtherFinancialInstitutionsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities_019c29a6-48ae-7393-b6b0-fda89cb1d488_terseLabel_en-US" xlink:label="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">New leases</link:label>
    <link:label id="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities_label_en-US" xlink:label="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase through new leases, liabilities arising from financing activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:to="lab_ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_AssumptionForFutureInflationIncreaseDecrease_019c29a6-48ae-7d1a-8705-fcf56f9c591b_terseLabel_en-US" xlink:label="lab_bbplc_AssumptionForFutureInflationIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assumption for future inflation increase (decrease)</link:label>
    <link:label id="lab_bbplc_AssumptionForFutureInflationIncreaseDecrease_label_en-US" xlink:label="lab_bbplc_AssumptionForFutureInflationIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assumption For Future Inflation Increase (Decrease)</link:label>
    <link:label id="lab_bbplc_AssumptionForFutureInflationIncreaseDecrease_documentation_en-US" xlink:label="lab_bbplc_AssumptionForFutureInflationIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Assumption For Future Inflation Increase (Decrease)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_AssumptionForFutureInflationIncreaseDecrease" xlink:href="bbplc-20251231.xsd#bbplc_AssumptionForFutureInflationIncreaseDecrease"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_AssumptionForFutureInflationIncreaseDecrease" xlink:to="lab_bbplc_AssumptionForFutureInflationIncreaseDecrease" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_019c29a6-4931-780a-ae61-05a28bcd5496_terseLabel_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [axis]</link:label>
    <link:label id="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_label_en-US" xlink:label="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Temporary difference, unused tax losses and unused tax credits [axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:to="lab_ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RiskExposuresDomain_019c29a6-4827-72b1-9666-43695809fd6a_terseLabel_en-US" xlink:label="lab_ifrs-full_RiskExposuresDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Risk variables [domain]</link:label>
    <link:label id="lab_ifrs-full_RiskExposuresDomain_label_en-US" xlink:label="lab_ifrs-full_RiskExposuresDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk variables [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RiskExposuresDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RiskExposuresDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RiskExposuresDomain" xlink:to="lab_ifrs-full_RiskExposuresDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_019c29a6-49d1-737e-99d7-ec0d83d26558_terseLabel_en-US" xlink:label="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Method of assessment of expected credit losses [domain]</link:label>
    <link:label id="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain_label_en-US" xlink:label="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Method of assessment of expected credit losses [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain" xlink:to="lab_ifrs-full_MethodOfAssessmentOfExpectedCreditLossesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability_019c29a6-4828-76df-8b70-fd9c160d4114_terseLabel_en-US" xlink:label="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cumulative own credit net loss recognised</link:label>
    <link:label id="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability_label_en-US" xlink:label="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated increase (decrease) in fair value of financial liability, attributable to changes in credit risk of liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability" xlink:to="lab_ifrs-full_AccumulatedChangesInFairValueOfFinancialLiabilityAttributableToChangesInCreditRiskOfLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock_019c29a6-4828-73ff-8220-877607683b40_terseLabel_en-US" xlink:label="lab_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of macroeconomic variables used in the calculation of ECL and Scenario probability weighting</link:label>
    <link:label id="lab_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock_label_en-US" xlink:label="lab_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure Of Analysis Of Credit Exposures Using An External Credit Grading System [Text Block]</link:label>
    <link:label id="lab_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock_documentation_en-US" xlink:label="lab_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure Of Analysis Of Credit Exposures Using An External Credit Grading System</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock" xlink:href="bbplc-20251231.xsd#bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock" xlink:to="lab_bbplc_DisclosureOfAnalysisOfCreditExposuresUsingAnExternalCreditGradingSystemTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RecurringFairValueMeasurementMember_019c29a6-4828-747d-9560-3cd2ff4ea12f_terseLabel_en-US" xlink:label="lab_ifrs-full_RecurringFairValueMeasurementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recurring fair value measurement</link:label>
    <link:label id="lab_ifrs-full_RecurringFairValueMeasurementMember_label_en-US" xlink:label="lab_ifrs-full_RecurringFairValueMeasurementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Recurring fair value measurement [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecurringFairValueMeasurementMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecurringFairValueMeasurementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RecurringFairValueMeasurementMember" xlink:to="lab_ifrs-full_RecurringFairValueMeasurementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible_019c29a6-4828-744c-a0de-6bb4cd26d8f7_terseLabel_en-US" xlink:label="lab_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impact of UK bank levy being non-deductible</link:label>
    <link:label id="lab_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible_label_en-US" xlink:label="lab_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Effect Of UK Bank Levy Being Non-Deductible</link:label>
    <link:label id="lab_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible_documentation_en-US" xlink:label="lab_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to the United Kingdom Bank levy being non-deductible. The BRRD requires EU member states to establish a pre-funded resolution financing arrangement with funding equal to 1% of covered deposits by 31 December 2024 to cover the costs of bank resolutions. Where the amount of such pre-funding is insufficient, the BRRD requires that EU member states raise subsequent contributions. The UK government raises both pre-funded and subsequent contributions that would be required were the pre-funded contributions not to cover costs or other expenses incurred by use of the resolution funds by way of a tax on the balance sheets of banks.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible" xlink:href="bbplc-20251231.xsd#bbplc_TaxEffectOfUKBankLevyBeingNonDeductible"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible" xlink:to="lab_bbplc_TaxEffectOfUKBankLevyBeingNonDeductible" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember_019c29a6-4798-7c70-8fb3-01bc2e5d964e_terseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Over one month but not more than three months</link:label>
    <link:label id="lab_ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than one month and not later than three months [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember" xlink:to="lab_ifrs-full_LaterThanOneMonthAndNotLaterThanThreeMonthsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost_019c29a6-4798-7ce3-a55a-a8a4453778e3_terseLabel_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans and advances at amortised cost to banks</link:label>
    <link:label id="lab_ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost_label_en-US" xlink:label="lab_ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and advances to banks at amortised cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost" xlink:to="lab_ifrs-full_LoansAndAdvancesToBanksAtAmortisedCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_HedgedItemAssets_019c29a6-49d1-72f6-a3c6-3fa6b2576d41_terseLabel_en-US" xlink:label="lab_ifrs-full_HedgedItemAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount, hedged assets</link:label>
    <link:label id="lab_ifrs-full_HedgedItemAssets_label_en-US" xlink:label="lab_ifrs-full_HedgedItemAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Hedged item, assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_HedgedItemAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_HedgedItemAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_HedgedItemAssets" xlink:to="lab_ifrs-full_HedgedItemAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CapitalRequirementsDomain_019c29a6-4828-771d-a8cf-440d83412757_terseLabel_en-US" xlink:label="lab_ifrs-full_CapitalRequirementsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital requirements [domain]</link:label>
    <link:label id="lab_ifrs-full_CapitalRequirementsDomain_label_en-US" xlink:label="lab_ifrs-full_CapitalRequirementsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital requirements [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CapitalRequirementsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CapitalRequirementsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CapitalRequirementsDomain" xlink:to="lab_ifrs-full_CapitalRequirementsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory_019c29a6-4930-7a33-902f-1fddac8077d2_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of trading portfolio assets</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of financial assets held for trading [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory" xlink:to="lab_ifrs-full_DisclosureOfFinancialAssetsHeldForTradingExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments_019c29a6-4828-75a1-aa5a-f114b7ee0117_terseLabel_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employer social security charges on emoluments</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments_label_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key Management Personnel Compensation Security Charges Emoluments</link:label>
    <link:label id="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments_documentation_en-US" xlink:label="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of compensation to key management personnel in the form of employer social security charges on emoluments.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments" xlink:href="bbplc-20251231.xsd#bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments" xlink:to="lab_bbplc_KeyManagementPersonnelCompensationSecurityChargesEmoluments" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet_019c29a6-4827-75a9-acff-06954fbb5568_negatedLabel_en-US" xlink:label="lab_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Transfers out of Level 3 of fair value hierarchy, assets (liabilities) net</link:label>
    <link:label id="lab_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet_label_en-US" xlink:label="lab_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfers Out Of Level 3 Of Fair Value Hierarchy, Assets (Liabilities) Net</link:label>
    <link:label id="lab_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet_documentation_en-US" xlink:label="lab_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of transfers of assets less liabilities out of Level 3 of the fair value hierarchy. [Refer: Level 3 of fair value hierarchy [member]]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:href="bbplc-20251231.xsd#bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:to="lab_bbplc_TransfersOutOfLevel3OfFairValueHierarchyAssetsLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_019c29a6-49d1-70b4-b92b-3ae88520f81e_totalLabel_en-US" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Share-based payments</link:label>
    <link:label id="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets_label_en-US" xlink:label="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expense from share-based payment transactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:to="lab_ifrs-full_ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidatedEntitiesAxis_019c29a6-49d1-7f79-aade-59aa25540017_terseLabel_en-US" xlink:label="lab_srt_ConsolidatedEntitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
    <link:label id="lab_srt_ConsolidatedEntitiesAxis_label_en-US" xlink:label="lab_srt_ConsolidatedEntitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidatedEntitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ConsolidatedEntitiesAxis" xlink:to="lab_srt_ConsolidatedEntitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember_019c29a6-4931-79c7-8009-d333c8369e78_terseLabel_en-US" xlink:label="lab_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net assets (liabilities) at fair value through profit or loss, category trading income</link:label>
    <link:label id="lab_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember_label_en-US" xlink:label="lab_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Assets (Liabilities) At Fair Value Through Profit Or Loss, Category Trading Income [Member]</link:label>
    <link:label id="lab_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember_documentation_en-US" xlink:label="lab_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This member stands for the net assets (liabilities) at fair value through profit or loss category, located in trading income. [Refer: Financial liabilities at fair value through profit or loss]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember" xlink:href="bbplc-20251231.xsd#bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember" xlink:to="lab_bbplc_NetAssetsLiabilitiesAtFairValueThroughProfitOrLossCategoryTradingIncomeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LaterThanTenYearsMember_019c29a6-4798-723d-b5d0-0543f8c8a1c4_verboseLabel_en-US" xlink:label="lab_ifrs-full_LaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Greater than ten years</link:label>
    <link:label id="lab_ifrs-full_LaterThanTenYearsMember_label_en-US" xlink:label="lab_ifrs-full_LaterThanTenYearsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Later than ten years [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LaterThanTenYearsMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LaterThanTenYearsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LaterThanTenYearsMember" xlink:to="lab_ifrs-full_LaterThanTenYearsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_OtherRetailMember_019c29a6-4828-773a-9a6f-da2207382ff7_terseLabel_en-US" xlink:label="lab_bbplc_OtherRetailMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retail other</link:label>
    <link:label id="lab_bbplc_OtherRetailMember_label_en-US" xlink:label="lab_bbplc_OtherRetailMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other, Retail [Member]</link:label>
    <link:label id="lab_bbplc_OtherRetailMember_documentation_en-US" xlink:label="lab_bbplc_OtherRetailMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other, Retail</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_OtherRetailMember" xlink:href="bbplc-20251231.xsd#bbplc_OtherRetailMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_OtherRetailMember" xlink:to="lab_bbplc_OtherRetailMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdditionalProvisionsOtherProvisions_019c29a6-4931-73a0-8bd7-9e6cb9bdde57_terseLabel_en-US" xlink:label="lab_ifrs-full_AdditionalProvisionsOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additions</link:label>
    <link:label id="lab_ifrs-full_AdditionalProvisionsOtherProvisions_label_en-US" xlink:label="lab_ifrs-full_AdditionalProvisionsOtherProvisions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional provisions, other provisions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdditionalProvisionsOtherProvisions" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdditionalProvisionsOtherProvisions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdditionalProvisionsOtherProvisions" xlink:to="lab_ifrs-full_AdditionalProvisionsOtherProvisions" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember_019c29a6-4828-746c-8402-81e3dd8a1c98_terseLabel_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total loans and advances at amortised cost including debt securities</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember_label_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans And Advances At Amortised Cost, Including Debt Securities [Member]</link:label>
    <link:label id="lab_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember_documentation_en-US" xlink:label="lab_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loans And Advances At Amortised Cost, Including Debt Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember" xlink:href="bbplc-20251231.xsd#bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember" xlink:to="lab_bbplc_LoansAndAdvancesAtAmortisedCostIncludingDebtSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CurrencyAxis_019c29a6-49d1-7cc5-88c3-3f6e6544f92e_terseLabel_en-US" xlink:label="lab_srt_CurrencyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Currency [Axis]</link:label>
    <link:label id="lab_srt_CurrencyAxis_label_en-US" xlink:label="lab_srt_CurrencyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Currency [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_CurrencyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CurrencyAxis" xlink:to="lab_srt_CurrencyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory_019c29a6-48ae-73b8-a68b-c4c3355d60d3_terseLabel_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Issued debt and equity instruments</link:label>
    <link:label id="lab_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory_label_en-US" xlink:label="lab_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Description of accounting policy for issued capital [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xlink:to="lab_ifrs-full_DescriptionOfAccountingPolicyForIssuedCapitalExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_019c29a6-49d1-7035-9407-7ecfe8cf2ac0_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of wholly owned subsidiaries</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of interests in subsidiaries [text block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:to="lab_ifrs-full_DisclosureOfInterestsInSubsidiariesExplanatory" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_ImpairmentReviewValueInUseForecastPeriod_019c29a6-49d1-706a-acf5-269e7d060bb0_terseLabel_en-US" xlink:label="lab_bbplc_ImpairmentReviewValueInUseForecastPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">VIU forecast period</link:label>
    <link:label id="lab_bbplc_ImpairmentReviewValueInUseForecastPeriod_label_en-US" xlink:label="lab_bbplc_ImpairmentReviewValueInUseForecastPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment Review, Value In Use, Forecast Period</link:label>
    <link:label id="lab_bbplc_ImpairmentReviewValueInUseForecastPeriod_documentation_en-US" xlink:label="lab_bbplc_ImpairmentReviewValueInUseForecastPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Impairment Review, Value In Use, Forecast Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_ImpairmentReviewValueInUseForecastPeriod" xlink:href="bbplc-20251231.xsd#bbplc_ImpairmentReviewValueInUseForecastPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_ImpairmentReviewValueInUseForecastPeriod" xlink:to="lab_bbplc_ImpairmentReviewValueInUseForecastPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_SurchargeRateUKBanking_019c29a6-49d1-77b2-89ca-cea72dcccd4a_terseLabel_en-US" xlink:label="lab_bbplc_SurchargeRateUKBanking" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">UK banking surcharge rate (%)</link:label>
    <link:label id="lab_bbplc_SurchargeRateUKBanking_label_en-US" xlink:label="lab_bbplc_SurchargeRateUKBanking" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Surcharge Rate, UK Banking</link:label>
    <link:label id="lab_bbplc_SurchargeRateUKBanking_documentation_en-US" xlink:label="lab_bbplc_SurchargeRateUKBanking" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Surcharge Rate, UK Banking</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_SurchargeRateUKBanking" xlink:href="bbplc-20251231.xsd#bbplc_SurchargeRateUKBanking"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_SurchargeRateUKBanking" xlink:to="lab_bbplc_SurchargeRateUKBanking" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage_019c29a6-4931-7c95-aabe-79eaa463b58b_terseLabel_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial assets at fair value through the income statement, percentage</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage_label_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets At Fair Value Through Profit Or Loss, Percentage</link:label>
    <link:label id="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage_documentation_en-US" xlink:label="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of financial assets (expressed as a percentage) that are measured at fair value and for which gains (losses) are recognised in profit or loss. A financial asset shall be measured at fair value through profit or loss unless it is measured at amortised cost or at fair value through other comprehensive income. A gain (loss) on a financial asset measured at fair value shall be recognised in profit or loss unless it is part of a hedging relationship, it is an investment in an equity instrument for which the entity has elected to present gains and losses in other comprehensive income or it is a financial asset measured at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage" xlink:href="bbplc-20251231.xsd#bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage" xlink:to="lab_bbplc_FinancialAssetsAtFairValueThroughProfitOrLossPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits_019c29a6-4930-7903-8eae-d369c495e36f_terseLabel_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase in deposits at amortised cost</link:label>
    <link:label id="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits_label_en-US" xlink:label="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments for increase (decrease) in deposits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits" xlink:to="lab_ifrs-full_AdjustmentsForIncreaseDecreaseInDeposits" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_BarclaysInvestmentBankMember_019c29a6-4931-798c-929f-45f4888e5830_terseLabel_en-US" xlink:label="lab_bbplc_BarclaysInvestmentBankMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Barclays Investment Bank</link:label>
    <link:label id="lab_bbplc_BarclaysInvestmentBankMember_label_en-US" xlink:label="lab_bbplc_BarclaysInvestmentBankMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Barclays Investment Bank [Member]</link:label>
    <link:label id="lab_bbplc_BarclaysInvestmentBankMember_documentation_en-US" xlink:label="lab_bbplc_BarclaysInvestmentBankMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Barclays Investment Bank</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_BarclaysInvestmentBankMember" xlink:href="bbplc-20251231.xsd#bbplc_BarclaysInvestmentBankMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_BarclaysInvestmentBankMember" xlink:to="lab_bbplc_BarclaysInvestmentBankMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_019c29a6-4828-7afd-b5ed-6522b66fb074_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of terms and conditions of share-based payment arrangement [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:to="lab_ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain_019c29a6-49d1-7d8c-ae3c-4ad421d0c869_terseLabel_en-US" xlink:label="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit impairment of financial instruments [domain]</link:label>
    <link:label id="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain_label_en-US" xlink:label="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit impairment of financial instruments [domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" xlink:to="lab_ifrs-full_CreditImpairmentOfFinancialInstrumentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AverageEffectiveTaxRate_019c29a6-4930-7b87-9c60-1d7d8a19ecaf_totalLabel_en-US" xlink:label="lab_ifrs-full_AverageEffectiveTaxRate" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total tax charge, percentage</link:label>
    <link:label id="lab_ifrs-full_AverageEffectiveTaxRate_019c29a6-4930-7b3c-8a1f-522eb08fc51c_terseLabel_en-US" xlink:label="lab_ifrs-full_AverageEffectiveTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effective tax rate</link:label>
    <link:label id="lab_ifrs-full_AverageEffectiveTaxRate_label_en-US" xlink:label="lab_ifrs-full_AverageEffectiveTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Average effective tax rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AverageEffectiveTaxRate" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AverageEffectiveTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AverageEffectiveTaxRate" xlink:to="lab_ifrs-full_AverageEffectiveTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue_019c29a6-48ae-7e5c-aca5-866ca20d79b2_terseLabel_en-US" xlink:label="lab_ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of securities accepted as collateral</link:label>
    <link:label id="lab_ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue_label_en-US" xlink:label="lab_ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collateral held permitted to be sold or repledged in absence of default by owner of collateral, at fair value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue" xlink:to="lab_ifrs-full_AssetsHeldAsCollateralPermittedToBeSoldOrRepledgedAtFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AtFairValueMember_019c29a6-4798-775b-9f98-09c2b9a7dacd_terseLabel_en-US" xlink:label="lab_ifrs-full_AtFairValueMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">At fair value</link:label>
    <link:label id="lab_ifrs-full_AtFairValueMember_019c29a6-4798-7cb5-8018-39d28ce4a6eb_verboseLabel_en-US" xlink:label="lab_ifrs-full_AtFairValueMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Carried at fair value</link:label>
    <link:label id="lab_ifrs-full_AtFairValueMember_label_en-US" xlink:label="lab_ifrs-full_AtFairValueMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">At fair value [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AtFairValueMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_AtFairValueMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AtFairValueMember" xlink:to="lab_ifrs-full_AtFairValueMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidationItemsAxis_019c29a6-4828-7160-8917-ed2149b6a798_terseLabel_en-US" xlink:label="lab_srt_ConsolidationItemsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidation Items [Axis]</link:label>
    <link:label id="lab_srt_ConsolidationItemsAxis_label_en-US" xlink:label="lab_srt_ConsolidationItemsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidation Items [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ConsolidationItemsAxis" xlink:to="lab_srt_ConsolidationItemsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_019c29a6-4828-7f47-b389-2f8bad9d4c5d_terseLabel_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial liabilities</link:label>
    <link:label id="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_label_en-US" xlink:label="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Categories of financial liabilities [abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:to="lab_ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OptionPricingModelMember_019c29a6-49d1-77b2-bcba-820b02ee7efa_terseLabel_en-US" xlink:label="lab_ifrs-full_OptionPricingModelMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Option model</link:label>
    <link:label id="lab_ifrs-full_OptionPricingModelMember_label_en-US" xlink:label="lab_ifrs-full_OptionPricingModelMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Option pricing model [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OptionPricingModelMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_OptionPricingModelMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OptionPricingModelMember" xlink:to="lab_ifrs-full_OptionPricingModelMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_019c29a6-4931-7a39-967e-073b4d874c80_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</link:label>
    <link:label id="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_label_en-US" xlink:label="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of detailed information about property, plant and equipment [table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:to="lab_ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_LoansToGovernmentMember_019c29a6-48ae-7c98-ab8c-3de1682517ba_terseLabel_en-US" xlink:label="lab_ifrs-full_LoansToGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Government and Government sponsored debt</link:label>
    <link:label id="lab_ifrs-full_LoansToGovernmentMember_label_en-US" xlink:label="lab_ifrs-full_LoansToGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans to government [member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_LoansToGovernmentMember" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_LoansToGovernmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_LoansToGovernmentMember" xlink:to="lab_ifrs-full_LoansToGovernmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_019c29a6-49d1-7cd5-8e5f-49da98799df3_terseLabel_en-US" xlink:label="lab_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit liabilities</link:label>
    <link:label id="lab_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_019c29a6-49d1-7901-a26c-715558888461_negatedTerseLabel_en-US" xlink:label="lab_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Retirement benefit liabilities</link:label>
    <link:label id="lab_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan_label_en-US" xlink:label="lab_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net defined benefit liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:href="https://xbrl.ifrs.org/taxonomy/2025-03-27/full_ifrs/full_ifrs-cor_2025-03-27.xsd#ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:to="lab_ifrs-full_RecognisedLiabilitiesDefinedBenefitPlan" xlink:type="arc" order="1"/>
    <link:label id="lab_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember_019c29a6-4828-76f7-87ca-a6643ac2f5ea_terseLabel_en-US" xlink:label="lab_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reverse repurchase and repurchase agreements</link:label>
    <link:label id="lab_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember_label_en-US" xlink:label="lab_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements [Member]</link:label>
    <link:label id="lab_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember_documentation_en-US" xlink:label="lab_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Repurchase And Reverse Repurchase Agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember" xlink:href="bbplc-20251231.xsd#bbplc_RepurchaseAndReverseRepurchaseAgreementsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember" xlink:to="lab_bbplc_RepurchaseAndReverseRepurchaseAgreementsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems_019c29a6-4827-7e19-bcf9-f6eccfd1d2a9_terseLabel_en-US" xlink:label="lab_ifrs-full_DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Disclosure of objectives, policies and processes for managing capital [line items]</link:label>
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