| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Daniel "Danny"•O'Brien |
| Used name | Danny•O'Brien |
| Born | 10 July 1939 in Kilburn, England (GBR) |
| Died | 10 July 2001 in Brent, England (GBR) |
| Measurements | 165 cm / 60 kg |
| Affiliations | British Army, (GBR) |
| NOC | Ireland |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1960 Summer Olympics | Boxing | IRL |
Danny O'Brien | |||
| Lightweight, Men (Olympic) | =9 |