| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | John James "Jack"•O'Hara | |
| Used name | Jack•O'Hara | |
| Born | 12 September 1913 in Melbourne, Victoria |  AUS |
| Died | 29 December 1983 (aged 70 years 3 months 17 days) in Sydney, New South Wales | AUS |
| Measurements | 168 cm | |
| Affiliations | ?, Victoria — ?, Victoria | AUS |
| NOC | Australia | AUS |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1936 Summer Olympics | Wrestling | AUS |
Jack O'Hara | |||
| Welterweight, Freestyle, Men (Olympic) | =7 |
