<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001938284</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000927628</issuerCik>
      <issuerName>CAPITAL ONE FINANCIAL CORP</issuerName>
      <secFileNumber>001-13300</secFileNumber>
      <issuerAddress>
        <com:street1>1680 CAPITAL ONE DRIVE</com:street1>
        <com:street2>SUITE 1400</com:street2>
        <com:city>MCLEAN</com:city>
        <com:stateOrCountry>VA</com:stateOrCountry>
        <com:zipCode>22102</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>7037201000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>West Kara</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>MORGAN STANLEY SMITH BARNEY LLC EXECUTIVE SERVICES</name>
        <address>
          <com:street1>200 W CIVIC CENTER DR. 4TH FLOOR</com:street1>
          <com:city>SANDY</com:city>
          <com:stateOrCountry>UT</com:stateOrCountry>
          <com:zipCode>84070</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>721</noOfUnitsSold>
      <aggregateMarketValue>133005.10</aggregateMarketValue>
      <noOfUnitsOutstanding>381500000</noOfUnitsOutstanding>
      <approxSaleDate>11/07/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>02/15/2021</acquiredDate>
      <natureOfAcquisitionTransaction>RESTRICTED STOCK</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>321</amountOfSecuritiesAcquired>
      <paymentDate>02/15/2021</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>01/01/2020</acquiredDate>
      <natureOfAcquisitionTransaction>ESPP</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>53</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2020</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>01/01/2021</acquiredDate>
      <natureOfAcquisitionTransaction>ESPP</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>81</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2021</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>01/01/2022</acquiredDate>
      <natureOfAcquisitionTransaction>ESPP</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>94</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2022</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>01/01/2023</acquiredDate>
      <natureOfAcquisitionTransaction>ESPP</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>102</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2022</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>01/01/2024</acquiredDate>
      <natureOfAcquisitionTransaction>ESPP</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>70</amountOfSecuritiesAcquired>
      <paymentDate>01/01/2024</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>TABLE 1 BREAKDOWN 5/21/2020 2.562 1/31/2021 7.297 10/31/2021 7.732 9/30/2022 13.821 11/30/2023 11.804 7/31/2020 17.887 2/28/2021 6.551 11/30/2021 8.309 11/30/2022 12.339 12/31/2023 15.078 8/20/2020 0.675 3/31/2021 6.397 12/31/2021 12.072 12/31/2022 20.555 2/29/2024 9.739 8/31/2020 11.021 4/30/2021 5.459 1/31/2022 7.958 1/31/2023 10.705 3/31/2024 9.149 9/30/2020 10.587 6/30/2021 5.261 2/28/2022 7.838 3/31/2023 13.596 4/30/2024 9.498 10/31/2020 10.41 7/31/2021 7.55 3/31/2022 9.406 4/30/2023 13.437 5/31/2024 14.847 8/31/2021 7.036 4/30/2022 9.909 5/31/2023 12.546 8/31/2024 9.271 9/30/2021 7.209 6/30/2022 11.853 7/31/2023 11.172 9/30/2024 9.098 9/30/2023 13.521 10/31/2024 8.368</remarks>
    <noticeSignature>
      <noticeDate>11/07/2024</noticeDate>
      <signature>/s/ Kara Thompson West</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
