| Serge Ducosté | |
| Birth Date: | 4 February 1944 |
| Birth Place: | Port-au-Prince, Haiti |
| Position: | Defender |
| Years1: | 1965–1975 |
| Clubs1: | Aigle Noir AC |
| Nationalteam1: | Haiti |
Serge Ducosté (4 February 1944 – 5 July 2024) was a Haitian football defender who played for Haiti in the 1974 FIFA World Cup.[1] He also played for Aigle Noir AC.He died on 5 July 2024, at the age of 80.[2]