John Crook

John Crook may refer to:


 * John Crook (ethologist) (1930–2011), British ethologist and Buddhist
 * John Crook (conductor) (1847–1922), English conductor and composer
 * John Crook (politician) (1895–1970), Australian politician
 * John Crook (bishop) (born 1940), Bishop of Moray, Ross and Caithness, 1999–2006
 * John Crook (classicist) (1921–2007)