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  <xs:element id="cinf_InvestmentSegmentOfCINFMember" abstract="true" name="InvestmentSegmentOfCINFMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_SharesAcquiredDuringPeriodValueEmployeeShareBasedCompensationPlans" abstract="false" name="SharesAcquiredDuringPeriodValueEmployeeShareBasedCompensationPlans" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_OtherCommercialLinesMember" abstract="true" name="OtherCommercialLinesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_CommercialLinesInsuranceMember" abstract="true" name="CommercialLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_LifePolicyReservesMember" abstract="true" name="LifePolicyReservesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_PropertyCasualtyInsuranceAssumedAndCededBusinessTextBlock" abstract="false" name="PropertyCasualtyInsuranceAssumedAndCededBusinessTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="cinf_SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" abstract="true" name="SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_PersonalLinesInsuranceMember" abstract="true" name="PersonalLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_AvailableforsaleSecuritiesDebtMaturitiesAveragePercentAbstract" abstract="true" name="AvailableforsaleSecuritiesDebtMaturitiesAveragePercentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossNetOfTax" abstract="false" name="IncreaseDecreaseInOtherComprehensiveIncomeLossNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cinf_ExcessandSurplusLinesInsuranceMember" abstract="true" name="ExcessandSurplusLinesInsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" abstract="false" name="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="cinf_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" abstract="true" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="cinf_AccumulatedOtherComprehensiveIncomeLossTax" abstract="false" name="AccumulatedOtherComprehensiveIncomeLossTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
</XBRL>