<SEC-DOCUMENT>0000840489-16-000077.txt : 20160401
<SEC-HEADER>0000840489-16-000077.hdr.sgml : 20160401
<ACCEPTANCE-DATETIME>20160401174425
ACCESSION NUMBER:		0000840489-16-000077
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160330
FILED AS OF DATE:		20160401
DATE AS OF CHANGE:		20160401

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST CASH FINANCIAL SERVICES INC
		CENTRAL INDEX KEY:			0000840489
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-MISCELLANEOUS RETAIL [5900]
		IRS NUMBER:				752237318
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		690 E LAMAR BLVD
		STREET 2:		STE 400
		CITY:			ARLINGTON
		STATE:			TX
		ZIP:			76011
		BUSINESS PHONE:		8174603947

	MAIL ADDRESS:	
		STREET 1:		690 E LAMAR BLVD
		STREET 2:		STE 400
		CITY:			ARLINGTON
		STATE:			TX
		ZIP:			76011

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRST CASH INC
		DATE OF NAME CHANGE:	19940218

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ORR R DOUGLAS
		CENTRAL INDEX KEY:			0001241580

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19133
		FILM NUMBER:		161548346

	MAIL ADDRESS:	
		STREET 1:		690 E LAMAR BLVD 400
		CITY:			ARLINGTON
		STATE:			TX
		ZIP:			76011
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_145954705442455.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-03-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000840489</issuerCik>
        <issuerName>FIRST CASH FINANCIAL SERVICES INC</issuerName>
        <issuerTradingSymbol>FCFS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001241580</rptOwnerCik>
            <rptOwnerName>ORR R DOUGLAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>690 E. LAMAR BLVD., STE. 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ARLINGTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>76011</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP &amp; Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-03-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                    <footnoteId id="F1"/>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>196000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted stock award pursuant to terms of the Company's Restricted Stock Incentive Plan for fiscal 2016.  The award will vest in annual installments from 2016 through 2019, subject to attainment of pre-established annual performance measures.</footnote>
        <footnote id="F2">Includes 25,000 shares of non-vested restricted stock.  Vesting is contingent pursuant to the Company's shareholder-approved Executive Performance Incentive Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ R. Douglas Orr</signatureName>
        <signatureDate>2016-03-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
