| Louis Guy LeBlanc | |
| Birth Date: | 23 January 1921 |
| Birth Place: | Saint-Gabriel, Quebec |
| Riding: | Rimouski |
| Term Start: | November 1965 |
| Term End: | September 1972 |
| Predecessor: | Gérard Ouellet |
| Successor: | Eudore Allard |
| Profession: | consulting forestry engineer, land surveyor, life insurance agent |
| Party: | Liberal |
Louis Guy LeBlanc (23 January 1921 – 10 November 1990) was a Liberal party member of the House of Commons of Canada. He was born in Saint-Gabriel, Quebec and became a consulting forestry engineer, land surveyor and life insurance agent by career.
He was first elected at the Rimouski riding inthe 1965 general election, then re-elected there in the 1968 election. After completing his term in the 28th Canadian Parliament, LeBlanc was defeated at Rimouski in the 1972 federal election.