| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | John•O'Brien |
| Used name | John•O'Brien |
| Born | 1 June 1927 in Wanganui, Manawatu-Wanganui (NZL) |
| Died | 25 February 1995 |
| Affiliations | Aramoho Boating Club, Wanganui (NZL) |
| NOC | New Zealand |
John O’Brien had the following podium finishes at major championships: 1st in the 1950 British Empire Games Coxed Fours.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1952 Summer Olympics | Rowing | NZL |
John O'Brien | |||
| Coxed Fours, Men (Olympic) | New Zealand | 2 h1 r2/5 |