| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Seiji•Ono | |
| Used name | Seiji•Ono | |
| Original name | 小野•誠治 | |
| Born | 18 June 1956 in Seiyo, Ehime |  JPN |
| Measurements | 177 cm / 65 kg | |
| NOC | Japan | JPN |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1988 Summer Olympics | Table Tennis | JPN |
Seiji Ono | |||
| Singles, Men (Olympic) | =9 | |||||
| Doubles, Men (Olympic) | Yoshihito Miyazaki | =9 |
