| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Johan "Jan"•Welter | |
| Used name | Jan•Welter | |
| Born | 27 February 1895 in Amsterdam, Noord-Holland |  NED |
| Died | 19 June 1960 (aged 65 years 3 months 20 days) in Badhoevedorp, Noord-Holland | NED |
| Affiliations | Hercules — Amsterdam, Noord-Holland | NED |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1920 Summer Olympics | Weightlifting | NED |
Jan Welter | |||
| Light-Heavyweight, Men (Olympic) | 7 |
