John Cocks may refer to:
John Cocks (phycologist) (1787–1861), English botanist John Cocks, 1st Earl Somers (1760–1841), British peer and politician John Cocks (builder) (1966–2019), New Zealand TV builder John Cocks (rugby union), Australian rugby union player John C. Cocks (born 1944), American film critic and screenwriter
See also John Somers-Cocks (disambiguation) John Cock (disambiguation) John Cox (disambiguation)