-----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,
 NdLZGAiSNyfPIcqir/grvfac50dIh/awFUdWEypc2X2qdru4lcd4I1lDMPJYJH9G
 L5aO+NSECQop1XVR5CBIRw==

<SEC-DOCUMENT>0001225208-11-001432.txt : 20110107
<SEC-HEADER>0001225208-11-001432.hdr.sgml : 20110107
<ACCEPTANCE-DATETIME>20110107104410
ACCESSION NUMBER:		0001225208-11-001432
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110101
FILED AS OF DATE:		20110107
DATE AS OF CHANGE:		20110107

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Francis Sheldon M
		CENTRAL INDEX KEY:			0001509670

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05531
		FILM NUMBER:		11516018

	MAIL ADDRESS:	
		STREET 1:		201 SOUTH COLLEGE STREET
		STREET 2:		SUITE 2400
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28244

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MASSMUTUAL PARTICIPATION INVESTORS
		CENTRAL INDEX KEY:			0000831655
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				043025730
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1500 MAIN STREET
		STREET 2:		SUITE 600
		CITY:			SPRINGFIELD
		STATE:			MA
		ZIP:			01115
		BUSINESS PHONE:		4132261000

	MAIL ADDRESS:	
		STREET 1:		1500 MAIN STREET
		STREET 2:		SUITE 600
		CITY:			SPRINGFIELD
		STATE:			MA
		ZIP:			01115

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MASSMUTUAL CORPORATE INVESTORS II
		DATE OF NAME CHANGE:	19880417
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2011-01-01</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000831655</issuerCik>
        <issuerName>MASSMUTUAL PARTICIPATION INVESTORS</issuerName>
        <issuerTradingSymbol>MPV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001509670</rptOwnerCik>
            <rptOwnerName>Francis Sheldon M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>201 SOUTH COLLEGE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 240</rptOwnerStreet2>
            <rptOwnerCity>CHARLOTTE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28244</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>Officer of Adviser</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>The Reporting Person has no beneficial holdings.</remarks>

    <ownerSignature>
        <signatureName>Ann Malloy as Attorney-in-fact</signatureName>
        <signatureDate>2011-01-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
