Johannes Marius ("Bok") de Korver (27 January 1883 in Rotterdam – 22 October 1957 in Rotterdam) was a football player from the Netherlands, who twice won a bronze medal with the Netherlands national football team at the Summer Olympics: in 1908 (London) and in 1912 (Stockholm).

De Korver scored his most notable goal in 1912, in a match against AFC Ajax.

He was also a player of the Dutch national team that beat England for the first time ever, in 1913.

De Korver was an honorary member of Sparta and of the Royal Dutch Football Association.

The football club BDK from Amsterdam was named after De Korver.