| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Hans Ernest "Jean"•Jenni | |
| Used name | Jean•Jenni | |
| Born | 22 February 1901 in La Chaux-de-Fonds, Neuchâtel |  SUI |
| Died | 12 January 1954 (aged 52 years 10 months 18 days) in Neuchâtel, Neuchâtel | SUI |
| Affiliations | Red-Fish Neuchâtel — Neuchâtel, Neuchâtel | SUI |
| NOC | Switzerland | SUI |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1920 Summer Olympics | Swimming (Aquatics) | SUI |
Jean Jenni | |||
| 100 metres Freestyle, Men (Olympic) | 5 h3 r1/4 | |||||
| Water Polo (Aquatics) | SUI |
Jean Jenni | ||||
| Water Polo, Men (Olympic) | Switzerland | =9 |
Surname also seen as Jenny, but Jenni comes from official documents.
