| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Afonso Celso•Ribeiro de Castro |
| Used name | Afonso•de Castro |
| Born | 10 December 1911 in Campos dos Goytacazes, Rio de Janeiro (BRA) |
| Died | 21 August 1980 in Rio de Janeiro, Rio de Janeiro (BRA) |
| NOC | Brazil |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1936 Summer Olympics | Rowing | BRA |
Afonso de Castro | |||
| Coxless Pairs, Men (Olympic) | Brazil | AC h1 r2/3 |