| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Michael•Williamson |
| Used name | Michael•Williamson |
| Born | 5 February 1981 in Belfast, Northern Ireland (GBR) |
| Measurements | 187 cm / 78 kg |
| NOC |  Ireland |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2004 Summer Olympics | Swimming (Aquatics) | IRL |
Michael Williamson | |||
| 200 metres Breaststroke, Men (Olympic) | 22 |
