William Crook

William Crook may refer to:
 * William H. Crook (1839–1915), one of Abraham Lincoln's presidential bodyguards and longtime White House employee
 * William Crook (politician) (1925–1997), American politician, US Ambassador to Australia
 * William Pascoe Crook (1775–1846), missionary, schoolmaster and pastor
 * Billy Crook (American soccer) (born 1964)
 * Billy Crook (English footballer) (1926–2011)