| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jens Birger•Knudtzon |
| Used name | Birger•Knudtzon |
| Born | 19 February 1936 in Oslo, Oslo (NOR) |
| Measurements | 181 cm / 83 kg |
| Affiliations | Bærum Roklubb, Sandvika, Bærum (NOR) |
| NOC |  Norway |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Rowing | NOR |
Birger Knudtzon | |||
| Coxed Fours, Men (Olympic) | Norway | 9 |
