| Marcel Loncle | |
| Birth Date: | 5 January 1936 |
| Birth Place: | Saint-Malo, France |
| Position: | Midfielder |
| Years1: | 1956–1961 |
| Years2: | 1961–1965 |
| Clubs2: | Rennes |
| Nationalyears1: | 1965 |
| Nationalteam1: | France |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
Marcel Loncle (born 5 January 1936 in Saint-Malo) is a retired French football player who played for Angers SCO and Rennes, as well as the French national side. He was part of France's squad at the 1960 Summer Olympics.[1]