<?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>0001238032</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>RICHARD D FAIRBANK</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
                <relationshipToIssuer>Director</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>3890</noOfUnitsSold>
            <aggregateMarketValue>404560.00</aggregateMarketValue>
            <noOfUnitsOutstanding>380846771</noOfUnitsOutstanding>
            <approxSaleDate>11/10/2023</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>11/10/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3890</amountOfSecuritiesAcquired>
            <paymentDate>11/10/2023</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>11/09/2023</saleDate>
            <amountOfSecuritiesSold>3890</amountOfSecuritiesSold>
            <grossProceeds>411406.40</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>11/08/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>408555.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>11/07/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>407932.44</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>11/06/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>412835.10</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>11/03/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>411940.17</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>11/02/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>396882.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>11/01/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>395520.15</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>10/31/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>392524.08</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>10/30/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>383730.42</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>08/14/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>425986.68</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RICHARD D FAIRBANK</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>08/11/2023</saleDate>
            <amountOfSecuritiesSold>3891</amountOfSecuritiesSold>
            <grossProceeds>428010.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>Sales that were executed on November 10, 2023 are being reported on this Form 144 filed on November 13, 2023 given the EDGAR system was not accepting filings on November 10 in observance of the federal holiday.</remarks>
        <noticeSignature>
            <noticeDate>11/13/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>02/10/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Richard D. Fairbank</signature>
        </noticeSignature>
    </formData>
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[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 11299}]
144
0001238032
XXXXXXXX
LIVE
0000927628
CAPITAL ONE FINANCIAL CORPORATION
001-13300
1680 Capital One Drive
McLean
VA
22102
(703) 720-1000
RICHARD D FAIRBANK
Officer
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
3890
404560.00
380846771
11/10/2023
NYSE
Common
11/10/2023
Stock Option Exercise
Issuer
N
3890
11/10/2023
Cash
N
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
11/09/2023
3890
411406.40
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
11/08/2023
3891
408555.00
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
11/07/2023
3891
407932.44
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
11/06/2023
3891
412835.10
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
11/03/2023
3891
411940.17
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
11/02/2023
3891
396882.00
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
11/01/2023
3891
395520.15
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
10/31/2023
3891
392524.08
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
10/30/2023
3891
383730.42
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
08/14/2023
3891
425986.68
RICHARD D FAIRBANK
1680 Capital One Drive
McLean
VA
22102
Common
08/11/2023
3891
428010.00
Sales that were executed on November 10, 2023 are being reported on this Form 144 filed on November 13, 2023 given the EDGAR system was not accepting filings on November 10 in observance of the federal holiday.
11/13/2023
02/10/2023
/s/ Richard D. Fairbank