John Cock
John Cok may refer to:
- John Cock (MP for Sandwich), see Sandwich (UK Parliament constituency)
- John Cock (MP died 1557), MP for Hertfordshire and Calne
- John Cock (RAF officer), Australian-born fighter pilot of World War II
- Jack Cock, footballer
- John Cok, MP for Chichester
- John S. Cock, American politician and judge from Ohio