<SEC-DOCUMENT>0001133228-24-007100-index.html : 20240730
<SEC-HEADER>0001133228-24-007100.hdr.sgml : 20240730
<ACCEPTANCE-DATETIME>20240730112521
ACCESSION NUMBER:		0001133228-24-007100
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		9
CONFORMED PERIOD OF REPORT:	20240531
FILED AS OF DATE:		20240730
DATE AS OF CHANGE:		20240730
EFFECTIVENESS DATE:		20240730

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Western Asset Investment Grade Defined Opportunity Trust Inc.
		CENTRAL INDEX KEY:			0001462586
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-22294
		FILM NUMBER:		241155549

	BUSINESS ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		888-777-0102

	MAIL ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>waigdoti-efp8220_ncsrs.htm
<DESCRIPTION>WESTERN ASSET INVESTMENT GRADE DEFINED OPPORTUNITY TRUST INC. (IGI) - N-CSRS
<TEXT>
Document 1 - file: waigdoti-efp8220_ncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>waigdoti-efp8220_ex99cert.htm
<DESCRIPTION>CERTIFICATIONS PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
<TEXT>
Document 2 - file: waigdoti-efp8220_ex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>waigdoti-efp8220_ex99906cert.htm
<DESCRIPTION>CERTIFICATIONS PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
<TEXT>
Document 3 - file: waigdoti-efp8220_ex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>img0ba7cedd5.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: img0ba7cedd5.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>img2dd281516.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: img2dd281516.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>img42fc70834.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: img42fc70834.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>img172d1b111.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: img172d1b111.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>img7962417b2.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: img7962417b2.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>imge2c337163.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: imge2c337163.gif

</DOCUMENT>
</SEC-DOCUMENT>