| Seth Adonkor | |
| Birth Date: | 30 October 1961 |
| Birth Place: | Accra, Ghana |
| Death Place: | France |
| Position: | Midfielder |
| Youthyears1: | 1975–1981 |
| Youthclubs1: | Nantes |
| Years1: | 1981–1984 |
| Clubs1: | Nantes |
| Caps1: | 113 |
| Goals1: | 1 |
Seth Adonkor (30 October 1961 – 18 November 1984) was a professional footballer who played as a midfielder. Born in Ghana, he held both French and Ghanaian citizenship.
Adonkor was the half-brother of Marcel Desailly, who went on to play for the France national team.[1]
Adonkor was killed in car accident on 18 November 1984 along with his teammate Jean-Michelle Labejof. The third footballer Sidi Kaba survived with serious injuries.[2]