| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Matthew James "Matt"•Welsh |
| Used name | Matt•Welsh |
| Born | 18 November 1976 in Melbourne, Victoria (AUS) |
| Measurements | 188 cm / 80 kg |
| Affiliations | Melbourne Vicentre Swimming Club, Melbourne (AUS) |
| NOC | Australia |
| Medals | OG |
| Gold | 0 |
| Silver | 2 |
| Bronze | 1 |
| Total | 3 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2000 Summer Olympics | Swimming (Aquatics) | AUS |
Matt Welsh | |||
| 100 metres Backstroke, Men (Olympic) | 2 | Silver | ||||
| 200 metres Backstroke, Men (Olympic) | 3 | Bronze | ||||
| 4 × 100 metres Medley Relay, Men (Olympic) | Australia | 2 | Silver | |||
| 2004 Summer Olympics | Swimming (Aquatics) | AUS |
Matt Welsh | |||
| 100 metres Backstroke, Men (Olympic) | 5 | |||||
| 200 metres Backstroke, Men (Olympic) | 19 | |||||
| 4 × 100 metres Medley Relay, Men (Olympic) | Australia | 9 |