| Lionel Billas | |
| Nationality: | French |
| Sport: | Long-distance running |
| Event: | Marathon |
| Birth Date: | 3 February 1929 |
| Birth Place: | Commercy, France |
Lionel Billas (3 February 1929 - 17 July 1995) was a French long-distance runner. He competed in the marathon at the 1952 Summer Olympics.[1]