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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 UDOlj18xKMhUpHterj9Hhw==

<SEC-DOCUMENT>0001456955-10-000001.txt : 20100205
<SEC-HEADER>0001456955-10-000001.hdr.sgml : 20100205
<ACCEPTANCE-DATETIME>20100205135421
ACCESSION NUMBER:		0001456955-10-000001
CONFORMED SUBMISSION TYPE:	D
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:		20100205
DATE AS OF CHANGE:		20100205
EFFECTIVENESS DATE:		20100205

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sankaty Middle Market Opportunities Fund (Offshore), L.P.
		CENTRAL INDEX KEY:			0001481300
		IRS NUMBER:				980631855
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-138501
		FILM NUMBER:		10576784

	BUSINESS ADDRESS:	
		STREET 1:		111 HUNTINGTON AVE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-516-2240

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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        <cik>0001481300</cik>
        <entityName>Sankaty Middle Market Opportunities Fund (Offshore), L.P.</entityName>
        <issuerAddress>
            <street1>111 HUNTINGTON AVE</street1>
            <city>BOSTON</city>
            <stateOrCountry>MA</stateOrCountry>
            <zipCode>02199</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>617-516-2700</issuerPhoneNumber>
        <jurisdictionOfInc>CAYMAN ISLANDS</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
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        <entityType>Limited Partnership</entityType>
        <yearOfInc>
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            <value>2009</value>
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            <relatedPersonName>
                <firstName>JONATHAN</firstName>
                <lastName>LAVINE</lastName>
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                <street1>C/O SANKATY ADVISORS, LLC</street1>
                <street2>111 HUNTINGTON AVENUE</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>02199</zipCode>
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            <relationshipClarification></relationshipClarification>
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            <relatedPersonName>
                <firstName>TIMOTHY</firstName>
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                <firstName>MICHAEL</firstName>
                <lastName>GOSS</lastName>
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                <street1>C/O SANKATY ADVISORS, LLC</street1>
                <street2>111 HUNTINGTON AVENUE</street2>
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                <stateOrCountry>MA</stateOrCountry>
                <zipCode>02199</zipCode>
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                <firstName>JEFFREY</firstName>
                <lastName>HAWKINS</lastName>
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            <relatedPersonAddress>
                <street1>C/O SANKATY ADVISORS, LLC</street1>
                <street2>111 HUNTINGTON AVENUE</street2>
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                <zipCode>02199</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
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            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>JAMES</firstName>
                <lastName>KELLOGG III</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O SANKATY ADVISORS, LLC</street1>
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                <zipCode>02199</zipCode>
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            <relatedPersonRelationshipList>
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            <relationshipClarification></relationshipClarification>
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            <relatedPersonName>
                <firstName>DAVID</firstName>
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            </relatedPersonName>
            <relatedPersonAddress>
                <street1>C/O SANKATY ADVISORS, LLC</street1>
                <street2>111 HUNTINGTON AVENUE</street2>
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                <stateOrCountry>MA</stateOrCountry>
                <zipCode>02199</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            <relationshipClarification></relationshipClarification>
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                <firstName>KRISTEN</firstName>
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            <relationshipClarification></relationshipClarification>
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            <relatedPersonName>
                <firstName>KIMBERLY</firstName>
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            <relatedPersonAddress>
                <street1>C/O SANKATY ADVISORS, LLC</street1>
                <street2>111 HUNTINGTON AVENUE</street2>
                <city>BOSTON</city>
                <stateOrCountry>MA</stateOrCountry>
                <zipCode>02199</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            <relationshipClarification></relationshipClarification>
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            <relatedPersonName>
                <firstName>KYLE</firstName>
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            <relatedPersonAddress>
                <street1>C/O SANKATY ADVISORS, LLC</street1>
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                <zipCode>02199</zipCode>
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            <relatedPersonName>
                <firstName>SALLY</firstName>
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                <street1>C/O SANKATY ADVISORS, LLC</street1>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
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                <is40Act>false</is40Act>
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        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
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                <issuerName>Sankaty Middle Market Opportunities Fund (Offshore), L.P.</issuerName>
                <signatureName>JEFFREY B. HAWKINS</signatureName>
                <nameOfSigner>JEFFREY B. HAWKINS</nameOfSigner>
                <signatureTitle>MANAGING DIRECTOR OF THE GP OF THE GP</signatureTitle>
                <signatureDate>2010-02-05</signatureDate>
            </signature>
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-----END PRIVACY-ENHANCED MESSAGE-----