| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Niels Johannes•Nielsen |
| Used name | Niels•Nielsen |
| Born | 26 January 1939 in København (Copenhagen), Hovedstaden (DEN) |
| Measurements | 182 cm / 80 kg |
| Affiliations | Roklubben Skjold, Skjold, Hedensted (DEN) |
| NOC |  Denmark |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Rowing | DEN |
Niels Nielsen | |||
| Coxed Fours, Men (Olympic) | Denmark | 11 |
