The Department of Municipal Affairs was a part of the Government of New Brunswick. It was charged with the planning and supervision of local government in New Brunswick. From 1938 to 1954, this ministry was combined with Education. In 1986, the department became the Department of Municipal Affairs and Environment; the department was renamed back to the original name in 1989. In 1991, the department's functions were assumed by the new Department of Municipalities, Culture and Housing.
| Minister | Term | Government | |
|---|---|---|---|
| 1. | A. P. Paterson | July 16, 1938 – January 10, 1940 | under Allison Dysart |
| 2. | Charles H. Blakeney | January 10, 1940 – March 13, 1940 | |
| Charles H. Blakeney (cont'd) | March 13, 1940 - November 2, 1948 | under John McNair | |
| 3. | James W. Brittain | November 2, 1948 – October 8, 1952 | |
| 4. | October 8, 1952 – June 1954 | under Hugh John Flemming | |
| 5. | T. Babbitt Parlee | June 1954 - January 27, 1957 | |
| 6. | J. Stewart Brooks | April 5, 1957 - August 1, 1958 | |
| 7. | Hugh John Flemming | August 1, 1958 - July 12, 1960 | |
| 8. | Joseph E. LeBlanc | July 12, 1960 - May 18, 1965 | under Louis Robichaud |
| 9. | Norbert Thériault | May 18, 1965 - November 20, 1967 | |
| 10. | Fernand Nadeau | November 20, 1967 - February 11, 1970 | |
| 12. | Robert J. Higgins | February 11, 1970 - November 12, 1970 | |
| 13. | Jean-Paul LeBlanc | November 12, 1970 - July 18, 1972 | under Richard Hatfield |
| 14. | Horace Smith | July 18, 1972 - October 30, 1982 | |
| 15. | Yvon Poitras | October 30, 1982 - October 3, 1985 | |
| 16. | Robert Jackson | October 3, 1985 - October 27, 1987 | |
| 17. | Vaughn Blaney | October 27, 1987 - June 15, 1989 | under Frank McKenna |
| 18. | Hubert Seamans | June 15, 1989 - October 9, 1991 |