<SEC-DOCUMENT>0001193125-21-329867-index.html : 20211115
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ACCESSION NUMBER:		0001193125-21-329867
CONFORMED SUBMISSION TYPE:	10-K
PUBLIC DOCUMENT COUNT:		10
CONFORMED PERIOD OF REPORT:	20210930
FILED AS OF DATE:		20211115
DATE AS OF CHANGE:		20211115

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GLADSTONE CAPITAL CORP
		CENTRAL INDEX KEY:			0001143513
		IRS NUMBER:				542040781
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		10-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-00237
		FILM NUMBER:		211410619

	BUSINESS ADDRESS:	
		STREET 1:		1521 WESTBRANCH DRIVE
		STREET 2:		SUITE 100
		CITY:			MCLEAN
		STATE:			VA
		ZIP:			22102
		BUSINESS PHONE:		703-287-5800

	MAIL ADDRESS:	
		STREET 1:		1521 WESTBRANCH DRIVE
		STREET 2:		SUITE 100
		CITY:			MCLEAN
		STATE:			VA
		ZIP:			22102
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<TEXT>
Document 1 - file: d234860d10k.htm

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<DESCRIPTION>EX-4.5
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Document 2 - file: d234860dex45.htm

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<FILENAME>d234860dex21.htm
<DESCRIPTION>EX-21
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Document 3 - file: d234860dex21.htm

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<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>d234860dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 4 - file: d234860dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>5
<FILENAME>d234860dex311.htm
<DESCRIPTION>EX-31.1
<TEXT>
Document 5 - file: d234860dex311.htm

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<DOCUMENT>
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<DESCRIPTION>EX-31.2
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Document 6 - file: d234860dex312.htm

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<DESCRIPTION>EX-32.1
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Document 7 - file: d234860dex321.htm

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<TYPE>EX-32.2
<SEQUENCE>8
<FILENAME>d234860dex322.htm
<DESCRIPTION>EX-32.2
<TEXT>
Document 8 - file: d234860dex322.htm

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<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g234860g13x25.jpg
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Document 9 - file: g234860g13x25.jpg

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Document 10 - file: g234860g33d32.jpg

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