| Roles | Non-starter | |
|---|---|---|
| Sex | Female | |
| Full name | Sonja•Sieberg | |
| Used name | Sonja•Sieberg | |
| Born | 14 April 1915 in Tanah Raja, Serdang Bedagai, Sulawesi Utara |  INA |
| Died | 28 January 1968 (aged 52 years 9 months 14 days) in Den Haag (The Hague), Zuid-Holland |  NED |
| Affiliations | HZ & PC | |
| NOC | Netherlands | NED |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1936 Summer Olympics | Swimming (Aquatics) | NED |
Sonja Sieberg | |||
| 4 × 100 metres Freestyle Relay, Women (Olympic) | Netherlands |
