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  <xsd:element id="ww_AssumedOperatingIncomeMarginRate" name="AssumedOperatingIncomeMarginRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_InterestRateSwapCurrentSwapsMember" name="InterestRateSwapCurrentSwapsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax" name="AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectPretax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_ProductSalesAndOtherMember" name="ProductSalesAndOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_KurboIncMember" name="KurboIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OtherCountriesMember" name="OtherCountriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_LeaseLiabilitiesCurrentAbstract" name="LeaseLiabilitiesCurrentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_DebtInstrumentInterestPaymentDescription" name="DebtInstrumentInterestPaymentDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_AssumedDigitalRevenueGrowthRate" name="AssumedDigitalRevenueGrowthRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_PercentageOfEquityInterestsPledged" name="PercentageOfEquityInterestsPledged" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_EightPointSixTwentyFivePercentSeniorNotesDueInTwoThousandTwentyFiveMember" name="EightPointSixTwentyFivePercentSeniorNotesDueInTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_FixedLeaseCost" name="FixedLeaseCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_SubscriptionMember" name="SubscriptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_DebtFreeCumulativeAnnualCashFlowGrowthRate" name="DebtFreeCumulativeAnnualCashFlowGrowthRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_ThreeMonthTermSecuredOvernightFinancingRateSofrMember" name="ThreeMonthTermSecuredOvernightFinancingRateSofrMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsDueNextTwelveMonths" name="OperatingAndFinanceLeaseLiabilityPaymentsDueNextTwelveMonths" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_LeaseTerminationCosts" name="LeaseTerminationCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_OperatingLeaseCostAbstract" name="OperatingLeaseCostAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_SubscriptionRevenuesNetMember" name="SubscriptionRevenuesNetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OtherUnitsOfAccountMember" name="OtherUnitsOfAccountMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_IncomeTaxMisstatementMember" name="IncomeTaxMisstatementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_DerivativePayableMember" name="DerivativePayableMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_IncomeTaxExpenseBenefitMember" name="IncomeTaxExpenseBenefitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ReportingUnitPercentageOfFairValueEqualToCarryingAmount" name="ReportingUnitPercentageOfFairValueEqualToCarryingAmount" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ww_KurboHealthIncMember" name="KurboHealthIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ContractWithCustomerLiabilityPeriodIncreaseDecrease" name="ContractWithCustomerLiabilityPeriodIncreaseDecrease" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNextTwelveMonthsBeforeTax" name="InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNextTwelveMonthsBeforeTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_AssumedCumulativeAnnualRevenueGrowthRate" name="AssumedCumulativeAnnualRevenueGrowthRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_GoodwillAndIntangibleAssetsDisclosureLineItems" name="GoodwillAndIntangibleAssetsDisclosureLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ImpairmentOfIntangibleAndLongLivedAssets" name="ImpairmentOfIntangibleAndLongLivedAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_FairValueAssetsTransfersLevel1ToLevel2Amount" name="FairValueAssetsTransfersLevel1ToLevel2Amount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_LeaseLiabilitiesNoncurrentAbstract" name="LeaseLiabilitiesNoncurrentAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_InterestRateDerivativeCurrentAssetAtFairValue" name="InterestRateDerivativeCurrentAssetAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_LineOfCreditMaximumOutstandingPercentageToConsolidatedFirstLienLeverageRatio" name="LineOfCreditMaximumOutstandingPercentageToConsolidatedFirstLienLeverageRatio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_PledgePercentageOfFirstTierForeignSubsidiariesDirectlyOwnedByCompanyOrWhollyOwnedSubsidiaries" name="PledgePercentageOfFirstTierForeignSubsidiariesDirectlyOwnedByCompanyOrWhollyOwnedSubsidiaries" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_CashPaidOnFirstAnniversaryOfBusinessAcquisitionTransactionClosingMember" name="CashPaidOnFirstAnniversaryOfBusinessAcquisitionTransactionClosingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ContractWithCustomerAssetAndLiabilityLineItems" name="ContractWithCustomerAssetAndLiabilityLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_InternationalMember" name="InternationalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_UncategorizedAbstract" name="UncategorizedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_InterestRateSwapTwoThousandNineteenSwapMember" name="InterestRateSwapTwoThousandNineteenSwapMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_RealEstateRestructuringLeaseTerminationAndOtherRelatedCostsMember" name="RealEstateRestructuringLeaseTerminationAndOtherRelatedCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsDueYearThree" name="OperatingAndFinanceLeaseLiabilityPaymentsDueYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_WeightedAverageRemainingLeaseTermAbstract" name="WeightedAverageRemainingLeaseTermAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_MsWinfreyAndHerRelatedEntitiesMember" name="MsWinfreyAndHerRelatedEntitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_PercentageOfAnnualExcessCashFlow" name="PercentageOfAnnualExcessCashFlow" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_RightOfUseAssetModifiedObtainedInExchangeForOperatingLeaseLiability" name="RightOfUseAssetModifiedObtainedInExchangeForOperatingLeaseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_FiscalYearTwoThousandAndTwentyOnePlanMember" name="FiscalYearTwoThousandAndTwentyOnePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_NorthAmericaSegmentMember" name="NorthAmericaSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_AllUnitsOfAccountExceptForNewZealandMember" name="AllUnitsOfAccountExceptForNewZealandMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_SaleOfAssetsMember" name="SaleOfAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_BusinessAcquisitionCashHeldInReserves" name="BusinessAcquisitionCashHeldInReserves" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_LesseeOperatingAndFinanceLeasesDisclosureTextBlock" name="LesseeOperatingAndFinanceLeasesDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_RealEstateRestructuringEmployeeTerminationBenefitCostsMember" name="RealEstateRestructuringEmployeeTerminationBenefitCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_PurchasePriceAllocationMember" name="PurchasePriceAllocationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ProvisionForAllowanceForRecoveryOfDoubtfulAccounts" name="ProvisionForAllowanceForRecoveryOfDoubtfulAccounts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsDueYearFour" name="OperatingAndFinanceLeaseLiabilityPaymentsDueYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_AssumedWorkshopsAndDigitalRevenueGrowthRate" name="AssumedWorkshopsAndDigitalRevenueGrowthRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_ReportingUnitPercentageOfGoodwillHeld" name="ReportingUnitPercentageOfGoodwillHeld" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ww_ScheduleOfAssumptionsUtilizedInAnnualGoodwillImpairmentAnalysisTableTextBlock" name="ScheduleOfAssumptionsUtilizedInAnnualGoodwillImpairmentAnalysisTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_LesseeRemainingLeaseTerm" name="LesseeRemainingLeaseTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_TrademarksAndOtherIntangibleAssetsMember" name="TrademarksAndOtherIntangibleAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_SixMonthTermSecuredOvernightFinancingRateSofrMember" name="SixMonthTermSecuredOvernightFinancingRateSofrMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_QuantifyingMisstatementPriorPeriodFinancialStatementsAmount" name="QuantifyingMisstatementPriorPeriodFinancialStatementsAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_EuropeSegmentMember" name="EuropeSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_AmountToBePaidTwoYearsFromClosingDate" name="AmountToBePaidTwoYearsFromClosingDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_AllReportingUnitsExceptForNewZealandMember" name="AllReportingUnitsExceptForNewZealandMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsDue" name="OperatingAndFinanceLeaseLiabilityPaymentsDue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_OrganizationalRestructuringMember" name="OrganizationalRestructuringMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_SeniorSecuredNotesDueAprilFifteenTwoThousandTwentyNineMember" name="SeniorSecuredNotesDueAprilFifteenTwoThousandTwentyNineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_SeniorSecuredRevolvingCreditFacilityMember" name="SeniorSecuredRevolvingCreditFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OtherComprehensiveIncomeLossAfterReclassificationOfTaxEffectNetOfTax" name="OtherComprehensiveIncomeLossAfterReclassificationOfTaxEffectNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_PercentageOfEquityInterestOfPhysicianOwners" name="PercentageOfEquityInterestOfPhysicianOwners" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsDueYearFive" name="OperatingAndFinanceLeaseLiabilityPaymentsDueYearFive" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_LeaseImpairmentMember" name="LeaseImpairmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OtherMisstatementsMember" name="OtherMisstatementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_RevisedEstimatedCosts" name="RevisedEstimatedCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_LeaseLiabilitiesLesseeAbstract" name="LeaseLiabilitiesLesseeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_FranchiseRightsAcquiredNet" name="FranchiseRightsAcquiredNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_AmountToBePaidOneYearFromClosingDate" name="AmountToBePaidOneYearFromClosingDate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_WeightedAverageDiscountRateAbstract" name="WeightedAverageDiscountRateAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_PercentageOfRightToReinvestOfNetCashProceedsOfCertainNonOrdinaryCourseAssetSalesByCompanyAndItsRestrictedSubsidiariesSubjectToCertainQualifications" name="PercentageOfRightToReinvestOfNetCashProceedsOfCertainNonOrdinaryCourseAssetSalesByCompanyAndItsRestrictedSubsidiariesSubjectToCertainQualifications" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_DigitalSubscriptionRevenuesMember" name="DigitalSubscriptionRevenuesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_TwoThousandEighteenSwapMember" name="TwoThousandEighteenSwapMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_BusinessCombinationStockBasedCompensationExpensePostCombinationVesting" name="BusinessCombinationStockBasedCompensationExpensePostCombinationVesting" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount" name="OperatingAndFinanceLeaseLiabilityUndiscountedExcessAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_InterestRateSwapTwoThousandEighteenSwapMember" name="InterestRateSwapTwoThousandEighteenSwapMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_SeniorSecuredTrancheBTermLoanMember" name="SeniorSecuredTrancheBTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_DiscountRate" name="DiscountRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsDueAfterYearFive" name="OperatingAndFinanceLeaseLiabilityPaymentsDueAfterYearFive" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_WriteOffOfDeferredDebtIssuanceCostAndDebtDiscount" name="WriteOffOfDeferredDebtIssuanceCostAndDebtDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_IncreaseDecreaseInVariableLeaseCost" name="IncreaseDecreaseInVariableLeaseCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" name="OperatingAndFinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_FiscalYearTwoThousandAndTwentyTwoPlanMember" name="FiscalYearTwoThousandAndTwentyTwoPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_FranchiseAgreementPeriod" name="FranchiseAgreementPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_DerivativeEffectiveDateAndNotionalAmountDecreases" name="DerivativeEffectiveDateAndNotionalAmountDecreases" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_OrganizationalRestructuringEmployeeTerminationBenefitCostsMember" name="OrganizationalRestructuringEmployeeTerminationBenefitCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ScheduleOfLeaseAssetsAndLeaseLiabilitiesTableTextBlock" name="ScheduleOfLeaseAssetsAndLeaseLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_CheckweightLimitedMember" name="CheckweightLimitedMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_IncomeTaxesTable" name="IncomeTaxesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_RestructuringChargesAfterTax" name="RestructuringChargesAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_RevisionOfPreviouslyIssuedConsolidatedFinancialStatementsPolicyTextBlock" name="RevisionOfPreviouslyIssuedConsolidatedFinancialStatementsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_DebtInstrumentVariableRateFloorPercentDeterminedOptionOne" name="DebtInstrumentVariableRateFloorPercentDeterminedOptionOne" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_PercentageOfAnnualExcessCashFlowAfterAttainingFirstLienSecuredNetLeverageRatioTwo" name="PercentageOfAnnualExcessCashFlowAfterAttainingFirstLienSecuredNetLeverageRatioTwo" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_LeaseWeightedAverageRemainingLeaseTerm" name="LeaseWeightedAverageRemainingLeaseTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_TermLoanFacilityMember" name="TermLoanFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_PercentageOfNetProceedsOfAnyIssuanceOrIncurrenceOfDebtByCompanyOrAnyOfItsRestrictedSubsidiaries" name="PercentageOfNetProceedsOfAnyIssuanceOrIncurrenceOfDebtByCompanyOrAnyOfItsRestrictedSubsidiaries" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilityPaymentsDueYearTwo" name="OperatingAndFinanceLeaseLiabilityPaymentsDueYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_IncomeLossBeforeIncomeTaxesMember" name="IncomeLossBeforeIncomeTaxesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_AssumptionsUtilizedInAnnualGoodwillImpairmentAnalysisLineItems" name="AssumptionsUtilizedInAnnualGoodwillImpairmentAnalysisLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_FinanceLeaseCost" name="FinanceLeaseCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_FederalFundsEffectiveRateMember" name="FederalFundsEffectiveRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_PercentageOfFranchiseRightsAcquired" name="PercentageOfFranchiseRightsAcquired" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ww_InterestRateDerivativeNoncurrentAssetAtFairValue" name="InterestRateDerivativeNoncurrentAssetAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_PercentageOfNetCashProceedsOfCertainNonOrdinaryCourseAssetSalesByCompanyAndItsRestrictedSubsidiaries" name="PercentageOfNetCashProceedsOfCertainNonOrdinaryCourseAssetSalesByCompanyAndItsRestrictedSubsidiaries" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_AccountingStandardsUpdateTwentyTwentyOneZeroEightMember" name="AccountingStandardsUpdateTwentyTwentyOneZeroEightMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ContractWithCustomerAssetAndLiabilityTable" name="ContractWithCustomerAssetAndLiabilityTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ProductAndOtherMember" name="ProductAndOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_InternationalSegmentMember" name="InternationalSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_CreditFacilitiesAndSeniorSecuredNotesMember" name="CreditFacilitiesAndSeniorSecuredNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_DebtInstrumentsMaturityYear" name="DebtInstrumentsMaturityYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_ScheduleOfSupplementalCashFlowInformationRelatedToLeasesTableTextBlock" name="ScheduleOfSupplementalCashFlowInformationRelatedToLeasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_AdjustmentsToRetainedEarningsShareBasedCompensationRequisiteServicePeriodRecognitionValue" name="AdjustmentsToRetainedEarningsShareBasedCompensationRequisiteServicePeriodRecognitionValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_InitialTermOfAgreement" name="InitialTermOfAgreement" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_EstimatedCostsOfRestructuringCharges" name="EstimatedCostsOfRestructuringCharges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_FourPointFiveZeroZeroPercentSeniorSecuredNotesDue2029Member" name="FourPointFiveZeroZeroPercentSeniorSecuredNotesDue2029Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_WeekendHealthIncDBASequenceMember" name="WeekendHealthIncDBASequenceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_FiscalYearTwoThousandAndTwentyPlanMember" name="FiscalYearTwoThousandAndTwentyPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_GoodwillAndIntangibleAssetsDisclosureTable" name="GoodwillAndIntangibleAssetsDisclosureTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_GBSegmentMember" name="GBSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ClinicalSubscriptionRevenuesMember" name="ClinicalSubscriptionRevenuesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_TwoThousandNineteenSwapMember" name="TwoThousandNineteenSwapMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_WorkshopsDigitalFeesMember" name="WorkshopsDigitalFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_TwelveMonthTermSecuredOvernightFinancingRateSofrMember" name="TwelveMonthTermSecuredOvernightFinancingRateSofrMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiability" name="OperatingAndFinanceLeaseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ww_ConsolidatedFirstLienLeverageRatio" name="ConsolidatedFirstLienLeverageRatio" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_OtherCostsMember" name="OtherCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ChangeOfControlMember" name="ChangeOfControlMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ScheduleOfMaturitiesOfOperatingAndFinanceLeaseLiabilitiesTableTextBlock" name="ScheduleOfMaturitiesOfOperatingAndFinanceLeaseLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ww_FiniteLivedFranchiseRightsMember" name="FiniteLivedFranchiseRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_OneMonthTermSecuredOvernightFinancingRateSofrMember" name="OneMonthTermSecuredOvernightFinancingRateSofrMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_FairValueLiabilitiesTransfersLevel1ToLevel2Amount" name="FairValueLiabilitiesTransfersLevel1ToLevel2Amount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_FinanceLeaseCostsAbstract" name="FinanceLeaseCostsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_ProceedsFromStockOptionsExercisedGross" name="ProceedsFromStockOptionsExercisedGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ww_OperatingAndFinanceLeaseLiabilitiesPaymentsDueAbstract" name="OperatingAndFinanceLeaseLiabilitiesPaymentsDueAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_IncomeTaxesLineItems" name="IncomeTaxesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_FiscalYearTwoThousandAndTwentyThreePlanMember" name="FiscalYearTwoThousandAndTwentyThreePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ww_AllReportingUnitsExceptForRepublicOfIrelandMember" name="AllReportingUnitsExceptForRepublicOfIrelandMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
</xsd:schema>
