 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | János•Kajdi | 
| Used name | János•Kajdi | 
| Born | 30 December 1939 in Szombathely, Vas (HUN) | 
| Died | 10 April 1992 in Budapest, Budapest (HUN) | 
| Measurements | 172 cm / 69 kg | 
| Affiliations | BHSE, Budapest (HUN) | 
| NOC |  Hungary | 
| Medals | OG | 
| Gold | 0 | 
| Silver | 1 | 
| Bronze | 0 | 
| Total | 1 | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Boxing |  HUN | János Kajdi | |||
| Lightweight, Men (Olympic) | =5 | |||||
| 1968 Summer Olympics | Boxing |  HUN | János Kajdi | |||
| Light-Welterweight, Men (Olympic) | =17 | |||||
| 1972 Summer Olympics | Boxing |  HUN | János Kajdi | |||
| Welterweight, Men (Olympic) | 2 | Silver |