| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Liam•O'Brien | |
| Used name | Liam•O'Brien | |
| Born | 11 October 1954 in Youghal, Cork |  IRL |
| Measurements | 179 cm / 66 kg | |
| Affiliations | Midleton AC — Midleton, Cork | IRL |
| NOC | Ireland | IRL |
Personal Best: 3000S – 8:27.24 (1984).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1984 Summer Olympics | Athletics | IRL |
Liam O'Brien | |||
| Steeplechase, Men (Olympic) | 11 h1 r2/3 |
