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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001179110-06-000830.txt : 20060106
<SEC-HEADER>0001179110-06-000830.hdr.sgml : 20060106
<ACCEPTANCE-DATETIME>20060106135857
ACCESSION NUMBER:		0001179110-06-000830
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060105
FILED AS OF DATE:		20060106
DATE AS OF CHANGE:		20060106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Peelish Michael R
		CENTRAL INDEX KEY:			0001305737

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32331
		FILM NUMBER:		06515880

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		410 689 7500

	MAIL ADDRESS:	
		STREET 1:		999 CORPORATE BOULEVARD
		STREET 2:		SUITE 300
		CITY:			LINTHICUM HEIGHTS
		STATE:			MD
		ZIP:			21090

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Foundation Coal Holdings, Inc.
		CENTRAL INDEX KEY:			0001301063
		STANDARD INDUSTRIAL CLASSIFICATION:	BITUMINOUS COAL & LIGNITE SURFACE MINING [1221]
		IRS NUMBER:				421638663
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		999 CORPORATE BOULEVARD, SUITE 300
		CITY:			LINTHICUM
		STATE:			MD
		ZIP:			21090-2227
		BUSINESS PHONE:		410-689-7500

	MAIL ADDRESS:	
		STREET 1:		999 CORPORATE BOULEVARD, SUITE 300
		CITY:			LINTHICUM
		STATE:			MD
		ZIP:			21090-2227
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-01-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001301063</issuerCik>
        <issuerName>Foundation Coal Holdings, Inc.</issuerName>
        <issuerTradingSymbol>FCL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001305737</rptOwnerCik>
            <rptOwnerName>Peelish Michael R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>999 CORPORATE BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>LINTHICUM HEIGHTS</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>21090-2227</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP,Safety&amp;Human Resources</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-01-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3519</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>40.3101</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31695</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2005.</footnote>
        <footnote id="F2">Represents average sales price of $40.3101 with sales prices ranging from $40.10 to $40.36.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Michael R. Peelish</signatureName>
        <signatureDate>2006-01-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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