| William M. Bird | |
| Office: | Member of the Legislative Assembly of New Brunswick |
| Term: | 1952–1960 |
| Constituency: | Madawaska |
| Birth Date: | 2 February 1889 |
| Birth Place: | Saint-Léonard, New Brunswick |
| Death Place: | Saint-Léonard, New Brunswick |
| Spouse: | Mary Jane Cyr |
| Party: | Progressive Conservative Party of New Brunswick |
| Occupation: | lumber merchant |
William Malory Bird (February 2, 1889 – October 5, 1967) was a Canadian politician. He served in the Legislative Assembly of New Brunswick as member of the Progressive Conservative party from 1952 to 1960.[1]