 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Karel Leendert•Miljon | 
| Used name | Karel•Miljon | 
| Born | 17 September 1903 in Amsterdam, Noord-Holland (NED) | 
| Died | 8 February 1984 in Bennebroek, Noord-Holland (NED) | 
| Affiliations | Corbett, Amsterdam (NED) | 
| NOC |  Netherlands | 
| Medals | OG | 
| Gold | 0 | 
| Silver | 0 | 
| Bronze | 1 | 
| Total | 1 | 
Karel Miljon had the following podium finishes at major championships: 3rd in the 1928 Olympics Light-Heavyweight; 2nd in the 1927 European Championships Light-Heavyweight, 3rd in the 1925 European Championships Light-Heavyweight.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1924 Summer Olympics | Boxing |  NED | Karel Miljon | |||
| Light-Heavyweight, Men (Olympic) | =17 | |||||
| 1928 Summer Olympics | Boxing |  NED | Karel Miljon | |||
| Light-Heavyweight, Men (Olympic) | 3 | Bronze |