<SEC-DOCUMENT>0001104659-21-151120-index.html : 20211217
<SEC-HEADER>0001104659-21-151120.hdr.sgml : 20211217
<ACCEPTANCE-DATETIME>20211217160449
ACCESSION NUMBER:		0001104659-21-151120
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20211217
DATE AS OF CHANGE:		20211217

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GOLUB CAPITAL BDC, Inc.
		CENTRAL INDEX KEY:			0001476765
		IRS NUMBER:				471893276
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-00794
		FILM NUMBER:		211501504

	BUSINESS ADDRESS:	
		STREET 1:		200 PARK AVENUE
		STREET 2:		25TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		212.750.6060

	MAIL ADDRESS:	
		STREET 1:		200 PARK AVENUE
		STREET 2:		25TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GOLUB CAPITAL INVESTMENT Corp
		DATE OF NAME CHANGE:	20170511

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Golub Capital BDC, Inc.
		DATE OF NAME CHANGE:	20100414

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Golub Capital BDC LLC
		DATE OF NAME CHANGE:	20091113
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>tm2135377d1_defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: tm2135377d1_defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>tm2135362d2_defa14aimg1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: tm2135362d2_defa14aimg1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2135362d2_defa14aimg2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2135362d2_defa14aimg2.jpg

</DOCUMENT>
</SEC-DOCUMENT>