-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GmRsxlOCROUxdjGXPgRl/mCsR4KwGOkEamYTXg0AauFeE/0PkAXlSAUzTvDm4Tan
 qmGeckCCpx4fgJ6EssayZg==

<SEC-DOCUMENT>0000902664-10-001887.txt : 20100315
<SEC-HEADER>0000902664-10-001887.hdr.sgml : 20100315
<ACCEPTANCE-DATETIME>20100312184255
ACCESSION NUMBER:		0000902664-10-001887
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
ITEM INFORMATION:		Investment Company Act Section 3(c)
ITEM INFORMATION:		Section 3(c)(7)
FILED AS OF DATE:		20100315
DATE AS OF CHANGE:		20100312
EFFECTIVENESS DATE:		20100315

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			One William Street Capital Partners, L.P.
		CENTRAL INDEX KEY:			0001435076
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-118148
		FILM NUMBER:		10679112

	BUSINESS ADDRESS:	
		STREET 1:		C/O ONE WILLIAM ST CAPITAL PTNRS GP, LLC
		STREET 2:		1271 AVENUE OF THE AMERICAS, 39TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020
		BUSINESS PHONE:		(212) 526-4733

	MAIL ADDRESS:	
		STREET 1:		C/O ONE WILLIAM ST CAPITAL PTNRS GP, LLC
		STREET 2:		1271 AVENUE OF THE AMERICAS, 39TH FL
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ONE WILLIAM STREET CAPITAL PARTNERS LP
		DATE OF NAME CHANGE:	20080514
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001435076</cik>
        <entityName>One William Street Capital Partners, L.P.</entityName>
        <issuerAddress>
            <street1>C/O ONE WILLIAM ST CAPITAL PTNRS GP, LLC</street1>
            <street2>1271 AVENUE OF THE AMERICAS, 39TH FL</street2>
            <city>NEW YORK</city>
            <stateOrCountry>NY</stateOrCountry>
            <zipCode>10020</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(212) 526-4733</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList></issuerPreviousNameList>
        <edgarPreviousNameList>
            <previousName>ONE WILLIAM STREET CAPITAL PARTNERS LP</previousName>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2008</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>One William Street Capital Partners GP, LLC</firstName>
                <lastName>One William Street Capital Partners GP, LLC</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1271 Avenue of the Americas, 39th Floor</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>General Partner of the Limited Partnership</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <lastName>Sherr</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>1271 Avenue of the Americas, 39th Floor</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <zipCode>10020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Managing Member of the General Partner</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Hedge Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <aggregateNetAssetValueRange>Decline to Disclose</aggregateNetAssetValueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
            <item>3C</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>9999999997-09-017241</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2008-04-01</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>178375000</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>20</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>The fund charges a management fee that is described in the fund's offering documents.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>One William Street Capital Partners, L.P.</issuerName>
                <signatureName>Kurt Locher</signatureName>
                <nameOfSigner>Kurt Locher</nameOfSigner>
                <signatureTitle>Authorized Officer of the General Partner</signatureTitle>
                <signatureDate>2010-02-23</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----