Japan: Summer Sports / Winter Sports
Games: 15 summer games in 13 countries
Events: 15
Participants: 76 (67 men and 9 women)
Youngest Participant: Yukio Furuyama (18 years, 121 days), 1956 Summer Games
Oldest Participant: Yoshio Nanbu (43 years, 247 days), 1956 Summer Games
Most Medals (Athlete): Yoshinobu Miyake (3 medals)
| Rk | Event | Participants | Gold | Silver | Bronze | Total | Top Medalist(s) |
|---|---|---|---|---|---|---|---|
| 1 | Men's Flyweight | 10 | 1 | 1 | Kazushito Manabe (1 medal) | ||
| 2 | Men's Bantamweight | 20 | 1 | 3 | 4 | 4 athletes with 1 medal | |
| 3 | Men's Featherweight | 18 | 2 | 2 | 4 | Yoshinobu Miyake (2 medals) | |
| 4 | Men's Lightweight | 12 | |||||
| 5 | Men's Middleweight | 3 | 1 | 1 | 2 | Masashi Ohuchi (2 medals) | |
| 6 | Men's Light-Heavyweight | 3 | 1 | 1 | Ryoji Isaoka (1 medal) | ||
| 7 | Men's Middle-Heavyweight | 1 | |||||
| 8 | Men's Heavyweight I | 2 | |||||
| 9 | Men's Heavyweight II | 1 | |||||
| 10 | Men's Super-Heavyweight | 3 | |||||
| 11 | Women's Flyweight | 4 | 1 | 1 | Hiromi Miyake (1 medal) | ||
| 12 | Women's Featherweight | 2 | |||||
| 13 | Women's Lightweight | 1 | |||||
| 14 | Women's Light-Heavyweight | 1 | |||||
| 15 | Women's Super-Heavyweight | 1 |