-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 IGDWWQ9Zos6D4i5ZnyEQaAP+KrWuJ04FCOCzyWVBUQqIS0cSUpnGIDGp5EEeuKdT
 WbUS9EOAgcRyIefXf4qt1A==

<SEC-DOCUMENT>0000903954-08-000045.txt : 20080730
<SEC-HEADER>0000903954-08-000045.hdr.sgml : 20080730
<ACCEPTANCE-DATETIME>20080730112148
ACCESSION NUMBER:		0000903954-08-000045
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080725
FILED AS OF DATE:		20080730
DATE AS OF CHANGE:		20080730

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RAPPAPORT STEVEN N
		CENTRAL INDEX KEY:			0001211192

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-08777
		FILM NUMBER:		08977856

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		2129069000

	MAIL ADDRESS:	
		STREET 1:		RZ CAPITAL LLC
		STREET 2:		555 MADISON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CREDIT SUISSE HIGH YIELD BOND FUND
		CENTRAL INDEX KEY:			0001061353
		IRS NUMBER:				134009166
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		277 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10172
		BUSINESS PHONE:		2128926692

	MAIL ADDRESS:	
		STREET 1:		277 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10172

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DLJ HIGH YIELD BOND FUND
		DATE OF NAME CHANGE:	19980508
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-07-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001061353</issuerCik>
        <issuerName>CREDIT SUISSE HIGH YIELD BOND FUND</issuerName>
        <issuerTradingSymbol>DHY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001211192</rptOwnerCik>
            <rptOwnerName>RAPPAPORT STEVEN N</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>RZ CAPITAL LLC</rptOwnerStreet1>
            <rptOwnerStreet2>555 MADISON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Trustee</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>common shares</value>
            </securityTitle>
            <transactionDate>
                <value>2008-07-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2140</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.34</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26874.815</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The total shares held following this transaction includes 1369.825 shares  acquired on 1/22/08, 1/29/08, 2/27/08, 3/28/08, 4/25/08, 5/28/08, 06/27/08 and 7/28/08 as part of the fund's dividend reinvestment plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Karen Regan, as attorney-in-fact</signatureName>
        <signatureDate>2008-07-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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