| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jan Christopher•von Koss |
| Used name | Jan•von Koss |
| Born | 26 September 1945 in Oslo, Oslo (NOR) |
| Measurements | 183 cm / 77 kg |
| Affiliations | Oslo Fekteklub, Oslo (NOR) |
| NOC | Norway |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Summer Olympics | Fencing | NOR |
Jan von Koss | |||
| Épée, Individual, Men (Olympic) | 5 p3 r2/4 | |||||
| 1972 Summer Olympics | Fencing | NOR |
Jan von Koss | |||
| Épée, Team, Men (Olympic) | Norway | =7 |