| Roméo Lorrain | |
| Office: | Member of the Legislative Assembly of Quebec for Papineau |
| Predecessor: | Désiré Lahaie |
| Term Start: | 1935 |
| Term End: | 1966 |
| Birth Date: | 26 May 1901 |
| Birth Place: | Buckingham, Quebec |
| Death Place: | Lac-Long, Quebec |
Roméo Lorrain (May 26, 1901 - July 6, 1967) was a politician Quebec, Canada and a nine-term Member of the Legislative Assembly of Quebec (MLA).
He was born on May 26, 1901, in Buckingham, Quebec (now Gatineau, Quebec) and became a farmer. Lorrain was a journalist and a business person.
He ran as an Action libérale nationale candidate in the district of Papineau in the 1935 provincial election and won. He joined Maurice Duplessis's Union Nationale and was re-elected in the 1936, 1939, 1944, 1948, 1952, 1956, 1960 and 1962 elections. He did not run for re-election in the 1966 election and was succeeded again by Roland Théorêt.
Lorrain was appointed to the Cabinet in 1944, serving as Minister of Public Works until 1960.
He died on July 6, 1967.