<SEC-DOCUMENT>0001193125-21-201590-index.html : 20210628
<SEC-HEADER>0001193125-21-201590.hdr.sgml : 20210628
<ACCEPTANCE-DATETIME>20210628124954
ACCESSION NUMBER:		0001193125-21-201590
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		8
CONFORMED PERIOD OF REPORT:	20210430
FILED AS OF DATE:		20210628
DATE AS OF CHANGE:		20210628
EFFECTIVENESS DATE:		20210628

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTERN ASSET MUNICIPAL HIGH INCOME FUND INC.
		CENTRAL INDEX KEY:			0000830487
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05497
		FILM NUMBER:		211051690

	BUSINESS ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		49TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		888-777-0102

	MAIL ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		49TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNICIPAL HIGH INCOME FUND INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SPECIAL OPPORTUNITIES MUNICIPAL FUND INC
		DATE OF NAME CHANGE:	19881025
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d132286dncsrs.htm
<DESCRIPTION>WESTERN ASSET MUNICIPAL HIGH INCOME FUND INC. (MHF)
<TEXT>
Document 1 - file: d132286dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d132286dex99cert.htm
<DESCRIPTION>302 CERTIFICATIONS
<TEXT>
Document 2 - file: d132286dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d132286dex99906cert.htm
<DESCRIPTION>906 CERTIFICATIONS
<TEXT>
Document 3 - file: d132286dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g132286g12u83.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g132286g12u83.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g132286g57q58.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g132286g57q58.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g132286g99g01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g132286g99g01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g132286janetrust_photo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g132286janetrust_photo.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g132286westassetlogo.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g132286westassetlogo.jpg

</DOCUMENT>
</SEC-DOCUMENT>