| Roles | Non-starter | |
|---|---|---|
| Sex | Male | |
| Full name | Johan "Jan"•den Haan | |
| Used name | Jan•den Haan | |
| Other names | Jo Lamers | |
| Born | 18 September 1926 in Rotterdam, Zuid-Holland |  NED |
| Died | 13 April 2003 (aged 76 years 6 months 25 days) in Rotterdam, Zuid-Holland | NED |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1952 Summer Olympics | Boxing | NED |
Jan den Haan | |||
| Light-Middleweight, Men (Olympic) |
