| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Gaston Antoine•Mercier | |
| Used name | Gaston•Mercier | |
| Born | 5 June 1932 in Paris XIVe, Paris |  FRA |
| Died | 4 July 1974 (aged 42 years 29 days) in Bussières, Saône-et-Loire | FRA |
| Measurements | 190 cm / 88 kg | |
| Affiliations | Société d'Encouragement du Sport Nautique — Nogent-sur-Marne, Val-de-Marne | FRA |
| NOC | France | FRA |
| Medals | OG |
| Gold | 1 |
| Silver | 0 |
| Bronze | 1 |
| Total | 2 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1952 Summer Olympics | Rowing | FRA |
Gaston Mercier | |||
| Coxed Pairs, Men (Olympic) | France | 1 | Gold | |||
| 1956 Summer Olympics | Rowing | FRA |
Gaston Mercier | |||
| Coxless Fours, Men (Olympic) | France | 3 | Bronze | |||
| 1960 Summer Olympics | Rowing | FRA |
Gaston Mercier | |||
| Eights, Men (Olympic) | France | 4 |
