Karel Leendert Miljon (born September 17, 1903 in Amsterdam — died February 8, 1984 in Bennebroek) was a former Dutch boxer, who won the bronze medal in the light heavyweight division at the 1928 Summer Olympics in Amsterdam. He captured the Dutch title eleven times, and also participated in the 1924 Summer Olympics in Paris, where he was eliminated in the first round.
1924 (as a Light heavyweight)
- Lost to Harry Mitchell (Great Britain) DQ 3
1928 (as a Light heavyweight)