| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Niels Gunnar•Nielsen | |
| Used name | Gunnar•Nielsen | |
| Born | 25 March 1928 in København (Copenhagen), Hovedstaden |  DEN |
| Died | 29 May 1985 (aged 57 years 2 months 4 days) in København (Copenhagen), Hovedstaden | DEN |
| Measurements | 184 cm / 78 kg | |
| Affiliations | KIF Atletik — København (Copenhagen), Hovedstaden | DEN |
| NOC | Denmark | DEN |
Personal Bests: 800 – 1:47.5y (1955); 1500 – 3:40.8 (1955).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1952 Summer Olympics | Athletics | DEN |
Gunnar Nielsen | |||
| 800 metres, Men (Olympic) | 4 | |||||
| 1,500 metres, Men (Olympic) | ||||||
| 1956 Summer Olympics | Athletics | DEN |
Gunnar Nielsen | |||
| 800 metres, Men (Olympic) | 1 h4 r1/3 | |||||
| 1,500 metres, Men (Olympic) | 10 |
