| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Willem "Wim"•Hermsen | |
| Used name | Wim•Hermsen | |
| Born | 7 September 1947 in Hilversum, Noord-Holland |  NED |
| Measurements | 183 cm / 80 kg | |
| Affiliations | De Robben — Hilversum, Noord-Holland | NED |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1972 Summer Olympics | Water Polo (Aquatics) | NED |
Wim Hermsen | |||
| Water Polo, Men (Olympic) | Netherlands | 7 |
