| Onésime Carignan | |
| Constituency Mp: | Champlain |
| Parliament: | Canadian |
| Successor: | François Arthur Marcotte |
| Term Start: | 1891 |
| Term End: | 1896 |
| Birth Date: | 16 October 1839 |
| Birth Place: | Champlain, Lower Canada |
| Party: | Conservative |
Onésime Carignan (October 16, 1839 – September 20, 1897) was a wholesale and retail grocer and political figure in Quebec. He represented Champlain in the House of Commons of Canada from 1891 to 1896 as a Conservative member.
He was born in Champlain, Quebec, the son of Joseph Carignan and Josephte Turcotte. In 1864, he married Aglaée Le Bel. Carignan served as a member of the town council for Trois-Rivières from 1876 to 1888.