<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001497948</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0000927628</issuerCik>
            <issuerName>CAPITAL ONE FINANCIAL CORPORATION</issuerName>
            <secFileNumber>001-13300</secFileNumber>
            <issuerAddress>
                <ns2:street1>1680 Capital One Drive</ns2:street1>
                <ns2:city>McLean</ns2:city>
                <ns2:stateOrCountry>VA</ns2:stateOrCountry>
                <ns2:zipCode>22102</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(703) 720-1000</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>FRANK G. LAPRADE III</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>23253</noOfUnitsSold>
            <aggregateMarketValue>2906745.92</aggregateMarketValue>
            <noOfUnitsOutstanding>380846771</noOfUnitsOutstanding>
            <approxSaleDate>12/13/2023</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>03/11/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>7540</amountOfSecuritiesAcquired>
            <paymentDate>03/11/2021</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>03/11/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>15713</amountOfSecuritiesAcquired>
            <paymentDate>03/11/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>FRANK G. LAPRADE III</name>
                <address>
                    <ns2:street1>1680 Capital One Drive</ns2:street1>
                    <ns2:city>McLean</ns2:city>
                    <ns2:stateOrCountry>VA</ns2:stateOrCountry>
                    <ns2:zipCode>22102</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>12/12/2023</saleDate>
            <amountOfSecuritiesSold>7962</amountOfSecuritiesSold>
            <grossProceeds>955440.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>12/13/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>07/28/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Frank G. LaPrade</signature>
        </noticeSignature>
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144
0001497948
XXXXXXXX
LIVE
0000927628
CAPITAL ONE FINANCIAL CORPORATION
001-13300
1680 Capital One Drive
McLean
VA
22102
(703) 720-1000
FRANK G. LAPRADE III
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
23253
2906745.92
380846771
12/13/2023
NYSE
COMMON
03/11/2021
Performance Shares
ISSUER
N
7540
03/11/2021
Not Applicable
COMMON
03/11/2022
Performance Shares
ISSUER
N
15713
03/11/2022
Not Applicable
N
FRANK G. LAPRADE III
1680 Capital One Drive
McLean
VA
22102
Common
12/12/2023
7962
955440.00
12/13/2023
07/28/2023
/s/ Frank G. LaPrade