| Léon Lortie | |
| Birth Date: | 31 August 1902 |
| Birth Place: | Montreal, Quebec |
| Awards: | Order of Canada |
Léon Lortie, (August 31, 1902 - December 31, 1985) was a Canadian chemist, academic, and writer.
In 1930, he defended his thesis on cerium under the direction of Nathalie Demassieux.
In 1970, he was made an Officer of the Order of Canada in recognition for having "distinguished himself in many government and professional organizations".