| Marc Lemay | |
| Term Start: | June 28, 2004 |
| Term End: | May 1, 2011 |
| Predecessor: | Riding established |
| Birth Date: | 4 April 1951 |
| Birth Place: | Amos, Quebec, Canada |
| Successor: | Christine Moore |
| Profession: | Lawyer |
| Party: | Bloc Québécois |
| Residence: | Rouyn-Noranda, Quebec |
| Riding: | Abitibi—Témiscamingue |
| Parliament: | Canadian |
Marc Lemay (born April 4, 1951) is a Canadian politician who served as the Member of Parliament (MP) for Abitibi—Témiscamingue from 2004 to 2011. He is a member of the Bloc Québécois (BQ).
Lemay was born in Amos, Quebec. A lawyer by occupation, he was first elected to the House of Commons in the 2004 federal election as the Bloc Québécois candidate in the newly-established riding of Abitibi—Témiscamingue. He defeated sitting MP Gilbert Barrette, the Liberal candidate, by nearly 12,000 votes. As a parliamentarian, Lemay was the Bloc's critic for Indian Affairs and Northern Development. He was defeated in the 2011 federal election by Christine Moore of the New Democratic Party (NDP).