| Birth Name: | Martin Beattie Fisher |
| Office: | Member of the Legislative Assembly of Quebec for Huntingdon |
| Predecessor: | Andrew Philps |
| Successor: | James Walker Ross |
| Term Start: | 1930 |
| Term End: | 1939 |
| Office2: | Member of the Legislative Council of Quebec for Inkerman |
| Predecessor2: | Charles Allan Smart |
| Successor2: | Robert Ness |
| Term Start2: | 1939 |
| Term End2: | 1941 |
| Birth Date: | 2 January 1881 |
| Birth Place: | Hemmingford, Quebec, Canada |
| Death Place: | Hemmingford, Quebec, Canada |
| Party: | Union Nationale |
Martin Beattie Fisher (January 2, 1881 - December 17, 1941) was a Canadian politician. He was a Member of the provincial legislature in Quebec.
He was born in Hemmingford, Montérégie on January 2, 1881.
He successfully ran as a Conservative candidate and won a by-election in 1930 in the district of Huntingdon. Fisher was re-elected in 1931, 1935 and was re-elected as a Union Nationale candidate in 1936.
He was appointed to the Cabinet in 1936 and served as Treasurer.
Not long before the 1939 election, Fisher was appointed to the Legislative Council of Quebec by Premier of Quebec Maurice Duplessis and served in that function until his death. He represented the division of Inkerman.
He died on December 17, 1941.