<SEC-DOCUMENT>0001179110-18-003121.txt : 20180301
<SEC-HEADER>0001179110-18-003121.hdr.sgml : 20180301
<ACCEPTANCE-DATETIME>20180301161532
ACCESSION NUMBER:		0001179110-18-003121
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180221
FILED AS OF DATE:		20180301
DATE AS OF CHANGE:		20180301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCMILLAN PETER
		CENTRAL INDEX KEY:			0001182336

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-04980
		FILM NUMBER:		18657489

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TCW STRATEGIC INCOME FUND INC
		CENTRAL INDEX KEY:			0000809559
		IRS NUMBER:				930939398
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		865 S FIGUEROA ST STE 1800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90071
		BUSINESS PHONE:		2132440000

	MAIL ADDRESS:	
		STREET 1:		865 S. FIGUEROA STREET,
		STREET 2:		SUITE 1800
		CITY:			LOSANGELES
		STATE:			CA
		ZIP:			90017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TCW CONVERTIBLE SECURITIES FUND INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-02-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000809559</issuerCik>
        <issuerName>TCW STRATEGIC INCOME FUND INC</issuerName>
        <issuerTradingSymbol>TSI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001182336</rptOwnerCik>
            <rptOwnerName>MCMILLAN PETER</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TCW STRATEGIC INCOME FUND, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>865 S. FIGUEROA STREET, STE., 1800</rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-02-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.467</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>Patrick Dennis for Peter McMillan by POA dtd May 20, 2013</signatureName>
        <signatureDate>2018-03-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24mcmillan.txt
<TEXT>
                                                                  EXECUTION COPY
                               POWER OF ATTORNEY

TCW Strategic Income Fund, Inc.
   The undersigned hereby constitutes and appoints Patrick Dennis, Eric Hausner,
   Harold  H.  Henderson,  Meredith  S.  Jackson,  Sean  Plater, Lazarus N. Sun,
   Vincent  Bencivenga,  Jon Darrow and Hilary Lord and each of them, his or her
   true and lawful attorneys-in-fact and agents, each of them with full power of
   substitution and resubstitution, for him or her and in his or her name, place
   and  stead,  in  any and all capacities, to sign any or all reports and forms
   required  under  Section  16  of  the Securities and Exchange Act of 1934, as
   amended,  including but not limited to all Form 3, Form 4 and Form 5 filings,
   and   to   file   the  same  with  the  Securities  and  Exchange  Commission
   ("Commission"),  granting unto each of said attorneys-in-fact and agents full
   power  and authority to do and perform each and every act and thing necessary
   or  appropriate  to  be  done  with  respect to such reports and forms or any
   amendments  or supplements thereto in and about the premises, as fully to all
   intents  and  purposes  as  he  or  she  might  or could do in person, hereby
   ratifying and confirming all that any of said attorneys-in-fact and agents or
   his  or her substitute or substitutes, may lawfully do or cause to be done by
   virtue  hereof.  This  Power of Attorney may be terminated at any time by the
   undersigned  by  written  notice  to  each  of  the attorneys-in-fact and the
   Commission;  provided,  however,  that  such termination shall not affect the
   validity  of  any lawful action done or performed by the attorneys-in-fact or
   any  of  them, pursuant thereto, prior to the actual receipt of notice by the
   attorneys-in-fact.  IN  WITNESS  WHEREOF,  the  undersigned has executed this
   Power of Attorney this 20th day of May, 2013.

                                            /s/ Peter McMillan
                                            -------------------------
                                                Peter McMillan
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
