| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Johannes Jacobus "Koos"•Köhler | |
| Used name | Koos•Köhler | |
| Nick/petnames | Ko | |
| Born | 25 November 1905 in Amsterdam, Noord-Holland |  NED |
| Died | 6 February 1965 (aged 59 years 2 months 11 days) in Sloten, Noord-Holland | NED |
| Affiliations | Het Y — Amsterdam, Noord-Holland | NED |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1928 Summer Olympics | Water Polo (Aquatics) | NED |
Koos Köhler | |||
| Water Polo, Men (Olympic) | Netherlands | =5 |
