<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001024896</cik>
        <entityName>CANTOR FITZGERALD L P</entityName>
        <issuerAddress>
            <street1>110 EAST 59TH STREET</street1>
            <city>NEW YORK</city>
            <stateOrCountry>NY</stateOrCountry>
            <zipCode>10022</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>2126102000</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Howard</firstName>
                <middleName>W.</middleName>
                <lastName>Lutnick</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>110 East 59th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Lutnick is an executive officer of the issuer and an executive officer and director of CF Group Management, Inc. the managing general partner of the issuer.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Stuart</firstName>
                <middleName>A.</middleName>
                <lastName>Fraser</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>110 East 59th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Fraser is an executive officer of the issuer and a director of CF Group Management, Inc., the managing general partner of the issuer.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Stephen</firstName>
                <middleName>M.</middleName>
                <lastName>Merkel</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>110 East 59th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Merkel is an executive officer of the issuer and an executive officer and director of CF Group Management, Inc., the managing general partner of the issuer.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Edith</firstName>
                <lastName>Lutnick</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>110 East 59th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Ms. Lutnick is an executive officer and director of CF Group Management, Inc., the managing general partner of the issuer.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Douglas</firstName>
                <lastName>Barnard</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>110 East 59th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Douglas is an executive officer of the issuer and an executive officer of CF Group Management, Inc., the managing general partner of the issuer.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Allison</firstName>
                <lastName>Lutnick</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>110 East 59th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Ms. Lutnick is an executive officer and a director of CF Group Management, Inc., the managing general partner of the issuer.</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>James</firstName>
                <lastName>Ficarro</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>110 East 59th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Mr. Ficarro is an executive officer of the issuer and an executive officer of CF Group Management, Inc., the managing general partner of the issuer.</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Investment Banking</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>9999999997-08-044296</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2008-10-15</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>91124471</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>88</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>CANTOR FITZGERALD L P</issuerName>
                <signatureName>STEPHEN M. MERKEL</signatureName>
                <nameOfSigner>Stephen M. Merkel</nameOfSigner>
                <signatureTitle>Executive Managing Director</signatureTitle>
                <signatureDate>2009-10-23</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
