-----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,
 B17VcIAI1wuVdrjiBAatJkZ/3DprYfcBDNZFnxoaMP6cOpdAK9XmnUdBhBGmG89Z
 5cC6kpZ+JeNhKxfo6QwAHw==

<SEC-DOCUMENT>0001445546-10-003859.txt : 20100927
<SEC-HEADER>0001445546-10-003859.hdr.sgml : 20100927
<ACCEPTANCE-DATETIME>20100927101131
ACCESSION NUMBER:		0001445546-10-003859
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100927
FILED AS OF DATE:		20100927
DATE AS OF CHANGE:		20100927

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MAHER KRISTI A
		CENTRAL INDEX KEY:			0001300862

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-22442
		FILM NUMBER:		101089985

	MAIL ADDRESS:	
		STREET 1:		FIRST TRUST PORTFOLIOS L.P.
		STREET 2:		120 EAST LIBERTY DRIVE, SUITE 400
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187

	FORMER NAME:	
		FORMER CONFORMED NAME:	Maher Kristi A
		DATE OF NAME CHANGE:	20040818

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST TRUST HIGH INCOME LONG/SHORT FUND
		CENTRAL INDEX KEY:			0001494530
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA

	BUSINESS ADDRESS:	
		STREET 1:		120 EAST LIBERTY DRIVE, SUITE 400
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187
		BUSINESS PHONE:		630-765-8000

	MAIL ADDRESS:	
		STREET 1:		120 EAST LIBERTY DRIVE, SUITE 400
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>maher_fsd3.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2010-09-27</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001494530</issuerCik>
        <issuerName>FIRST TRUST HIGH INCOME LONG/SHORT FUND</issuerName>
        <issuerTradingSymbol>FSD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001300862</rptOwnerCik>
            <rptOwnerName>MAHER KRISTI A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>FIRST TRUST PORTFOLIOS L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>120 EAST LIBERTY DRIVE, SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>WHEATON</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60187</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Asst. Secretary and Deputy CCO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Kristi A. Maher</signatureName>
        <signatureDate>2010-09-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----