| Birth Date: | 18 March 1891 |
| Birth Place: | Aunay-sur-Odon, France |
| Death Date: | 27 June 1970 (aged 79) |
| Death Place: | Lannion, France |
| Sport: | Athletics |
| Event: | 100–400 m |
| Club: | Union Sportive Rennes |
| Pb: | 400 m – 50.2 (1912) |
| Show-Medals: | yes |
Charles Louis Lelong (18 March 1891 - 27 June 1970) was a French sprinter who competed at the 1912 Summer Olympics.[1] He won a silver medal in the 4×400 metre relay and failed to reach the finals of 100 m, 200 m, 400 m and 4×100 metre relay events.[2]