 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Nathan Brian•O'Neill | 
| Used name | Nathan•O'Neill | 
| Born | 23 November 1974 in Sydney, New South Wales (AUS) | 
| Measurements | 177 cm / 72 kg | 
| Affiliations | Club Bike Line | 
| NOC |  Australia | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2000 Summer Olympics | Cycling Road (Cycling) |  AUS | Nathan O'Neill | |||
| Individual Time Trial, Men (Olympic) | 19 |