| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | João José•Mendes dos Santos | |
| Used name | João•Santos | |
| Born | 6 May 1964 | |
| Measurements | 176 cm / 73 kg | |
| Affiliations | SL Benfica — Lisboa, Distrito de Lisboa |  POR |
| NOC | Portugal | POR |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1984 Summer Olympics | Swimming (Aquatics) | POR |
João Santos | |||
| 100 metres Butterfly, Men (Olympic) | =37 | |||||
| 200 metres Butterfly, Men (Olympic) | 23 | |||||
| 1988 Summer Olympics | Swimming (Aquatics) | POR |
João Santos | |||
| 200 metres Butterfly, Men (Olympic) | 29 |
