    <SEC-DOCUMENT>0000928816-23-001022-index.html : 20230628
    <SEC-HEADER>0000928816-23-001022.hdr.sgml : 20230628
    <ACCEPTANCE-DATETIME>20230628114000
    ACCESSION NUMBER:		0000928816-23-001022
    CONFORMED SUBMISSION TYPE:	N-CSR
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20230430
    FILED AS OF DATE:		20230628
    DATE AS OF CHANGE:		20230628
    EFFECTIVENESS DATE:		20230628

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PUTNAM MUNICIPAL OPPORTUNITIES TRUST
    		CENTRAL INDEX KEY:			0000900422
    		IRS NUMBER:				043187549
    		STATE OF INCORPORATION:			MA
    		FISCAL YEAR END:			0430

    	FILING VALUES:
    		FORM TYPE:		N-CSR
    		SEC ACT:		1940 Act
    		SEC FILE NUMBER:	811-07626
    		FILM NUMBER:		231050378

    	BUSINESS ADDRESS:
    		STREET 1:		100 FEDERAL STREET
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02110
    		BUSINESS PHONE:		6172921000

    	MAIL ADDRESS:
    		STREET 1:		100 FEDERAL STREET
    		CITY:			BOSTON
    		STATE:			MA
    		ZIP:			02110
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSR
    <SEQUENCE>1
    <FILENAME>a_municipaloppstrust.htm
    <DESCRIPTION>PUTNAM MUNICIPAL OPPORTUNITIES TRUST
    <TEXT>
    Document 1 - file: a_municipaloppstrust.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99
    <SEQUENCE>2
    <FILENAME>b_19anotice.htm
    <DESCRIPTION>19(A) NOTICES TO BENEFICIAL OWNERS
    <TEXT>
    Document 2 - file: b_19anotice.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CERT
    <SEQUENCE>3
    <FILENAME>c_582certifications.htm
    <DESCRIPTION>CERTIFICATIONS
    <TEXT>
    Document 3 - file: c_582certifications.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.906 CERT
    <SEQUENCE>4
    <FILENAME>d_582noscertification.htm
    <DESCRIPTION>906 CERTIFICATIONS
    <TEXT>
    Document 4 - file: d_582noscertification.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>municipaloppstrustx1x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: municipaloppstrustx1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>municipaloppstrustx3x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: municipaloppstrustx3x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>municipaloppstrustx4x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: municipaloppstrustx4x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>municipaloppstrustx4x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: municipaloppstrustx4x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>municipaloppstrustx5x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: municipaloppstrustx5x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>municipaloppstrustx5x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: municipaloppstrustx5x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>municipaloppstrustx6x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: municipaloppstrustx6x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>municipaloppstrustx6x2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: municipaloppstrustx6x2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>municipaloppstrustx7x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: municipaloppstrustx7x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>municipaloppstrustx9x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: municipaloppstrustx9x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>municipaloppstrustx10x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: municipaloppstrustx10x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>municipaloppstrustx55x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: municipaloppstrustx55x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>municipaloppstrustx56x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: municipaloppstrustx56x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>municipaloppstrustx60x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: municipaloppstrustx60x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>notice19x1x1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: notice19x1x1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CODE ETH
    <SEQUENCE>20
    <FILENAME>a_picoemod5.htm
    <TEXT>
    Document 20 - file: a_picoemod5.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CODE ETH
    <SEQUENCE>21
    <FILENAME>a_nf69mod10.htm
    <TEXT>
    Document 21 - file: a_nf69mod10.htm

    </DOCUMENT>
    </SEC-DOCUMENT>