| Joseph Gauthier | |
| Office: | Member of the Legislative Assembly of Quebec for Montréal–Sainte-Marie |
| Predecessor: | Napoléon Séguin |
| Successor: | Camillien Houde |
| Term Start: | 1921 |
| Term End: | 1923 |
| Predecessor2: | Camillien Houde |
| Successor2: | Camillien Houde |
| Term Start2: | May 16, 1927 |
| Term End2: | December 2, 1927 |
| Birth Date: | 11 March 1877 |
| Birth Place: | Montreal, Quebec |
| Death Place: | Montreal, Quebec |
| Party: | Liberal |
Joseph Gauthier (March 11, 1877 - June 27, 1934) was a politician Quebec, Canada and a Member of the Legislative Assembly of Quebec (MLA).
He was born on March 11, 1877, in Montreal, the son of Édouard Gauthier and Célina Richard. He became a typographer and a union activist. Gauthier worked at L'Étendard and then La Patrie. In 1899, he married Mélina Bourgeois.
He ran as a Labour candidate in the district of Montréal–Sainte-Marie in a by-election held on December 22, 1921, and won. Gauthier was defeated by Conservative candidate Camillien Houde in the 1923 provincial election.
Gauthier defeated Houde and was re-elected as a Liberal in 1927 provincial election. His election was declared void in 1927. Gauthier was not a candidate in the subsequent by-election.
He died on June 27, 1934, in Montreal and was buried in the Notre Dame des Neiges Cemetery.