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  <xs:element id="kelya_HeadquartersMember" abstract="true" name="HeadquartersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAdjustment" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAdjustment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="kelya_SaleOfAssetsDomain" abstract="true" name="SaleOfAssetsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_PersolHoldingsInvestmentMember" abstract="true" name="PersolHoldingsInvestmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_SaleOfMainHeadquartersMember" abstract="true" name="SaleOfMainHeadquartersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_AssetsHeldForSaleTextBlock" abstract="false" name="AssetsHeldForSaleTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="kelya_InsightMember" abstract="true" name="InsightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_SecuritizationFacilityMember" abstract="false" name="SecuritizationFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_ParticipatingSecuritiesDistributedandUndistributedEarningsLossBasicandDiluted" abstract="false" name="ParticipatingSecuritiesDistributedandUndistributedEarningsLossBasicandDiluted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_WeightedAverageRemainingLeaseTermAbstract" abstract="true" name="WeightedAverageRemainingLeaseTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="kelya_ReceivablesHeldAsRetainerPercent" abstract="false" name="ReceivablesHeldAsRetainerPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="kelya_PerformanceSharesFinancialGoalsMember" abstract="true" name="PerformanceSharesFinancialGoalsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeNetofForeignTaxCreditAmount" abstract="false" name="EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeNetofForeignTaxCreditAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_LeasesRightOfUseAsset" abstract="false" name="LeasesRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_KellyServicesAustraliaPtyLtdAndKellyServicesNewZealandLimitedMember" abstract="true" name="KellyServicesAustraliaPtyLtdAndKellyServicesNewZealandLimitedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_KenzieAcademyInc.Member" abstract="true" name="KenzieAcademyInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_PerformanceshareseligibletoearnmorethantargetMember" abstract="true" name="PerformanceshareseligibletoearnmorethantargetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_AccountsPayablePolicyTextBlock" abstract="false" name="AccountsPayablePolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="kelya_IncomeTaxesLineItems" abstract="true" name="IncomeTaxesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="kelya_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAdjustmentWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingAdjustmentWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:perShareItemType"/>
  <xs:element id="kelya_AssetsHeldForSaleAbstract" abstract="true" name="AssetsHeldForSaleAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="kelya_CumulativeEffectofNewAccountingPrincipleinPeriodofAdoptionTaxes" abstract="false" name="CumulativeEffectofNewAccountingPrincipleinPeriodofAdoptionTaxes" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_PerformanceSharesTotalShareholderReturnMember" abstract="true" name="PerformanceSharesTotalShareholderReturnMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_AccountsReceivableCurrentPeriodProvision" abstract="false" name="AccountsReceivableCurrentPeriodProvision" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_BookOverdraftsMember" abstract="true" name="BookOverdraftsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_EarningsonUnqualifiedDeferredCompensationPlanLiability" abstract="false" name="EarningsonUnqualifiedDeferredCompensationPlanLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_CapitalStock100ParValueAbstract" abstract="true" name="CapitalStock100ParValueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="kelya_DeferredFulfillmentCostsMember" abstract="true" name="DeferredFulfillmentCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_A2018grantMember" abstract="true" name="A2018grantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_IndemnificationFairValueDisclosure" abstract="false" name="IndemnificationFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_ScienceEngineeringTechnologyMember" abstract="true" name="ScienceEngineeringTechnologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_BusinessCombinationIndemnificationLiabilitiesRangeOfOutcomesValueHigh" abstract="false" name="BusinessCombinationIndemnificationLiabilitiesRangeOfOutcomesValueHigh" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_TalentSolutionsMember" abstract="true" name="TalentSolutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_EarningsLossesonValueofDeferredCompensationAssets" abstract="false" name="EarningsLossesonValueofDeferredCompensationAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="kelya_ForeignTaxCreditCarryforwardMember" abstract="true" name="ForeignTaxCreditCarryforwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_OwnershipPercentageofParentCompany" abstract="false" name="OwnershipPercentageofParentCompany" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="num:percentItemType"/>
  <xs:element id="kelya_ProfessionalIndustrialMember" abstract="true" name="ProfessionalIndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_FacilityFeeMember" abstract="false" name="FacilityFeeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="kelya_SupplementalBalanceSheetInformationRelatedToLeasesTableTextBlock" abstract="false" name="SupplementalBalanceSheetInformationRelatedToLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
  <xs:element id="kelya_IncomeLossfromContinuingOperationsBeforeEquityMethodInvestments" abstract="false" name="IncomeLossfromContinuingOperationsBeforeEquityMethodInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
