| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Katsuo•Haga | |
| Used name | Katsuo•Haga | |
| Original name | 芳賀•勝男 | |
| Born | 4 December 1938 in Sendai, Miyagi |  JPN |
| Died | 24 November 2000 (aged 61 years 11 months 20 days) | |
| Measurements | 163 cm / 54 kg | |
| NOC | Japan | JPN |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1960 Summer Olympics | Boxing | JPN |
Katsuo Haga | |||
| Bantamweight, Men (Olympic) | =9 |
