| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Jan Jacob•Kieft | |
| Used name | Jan•Kieft | |
| Born | 25 January 1877 in Amsterdam, Noord-Holland |  NED |
| Died | 2 April 1946 (aged 69 years 2 months 8 days) in Rotterdam, Zuid-Holland | NED |
| Measurements | 166 cm | |
| Affiliations | Plato — Amsterdam, Noord-Holland | NED |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1908 Summer Olympics | Artistic Gymnastics (Gymnastics) | NED |
Jan Kieft | |||
| All-Around, Individual, Men (Olympic) | =73 | |||||
| Team, Men (Olympic) | Netherlands | 7 |
