William Bull

William Bull may refer to:


 * William Bull (diver) (1886–1970), British Olympic diver
 * William Bull (governor) (1638–1755), landowner and politician in the Province of South Carolina
 * William Bull II (1710–1791), lieutenant governor of the Province of South Carolina
 * William Bull (minister) (1738–1814), English independent minister
 * William Bull (botanist) (1828–1902), English botanist
 * William Bull (landowner) (1867–1956), founder of Bilbul, a small town in New South Wales, Australia
 * Sir William Bull, 1st Baronet (1863–1931), British solicitor and politician
 * William Frederick Bull, Canadian diplomat
 * William Ford Bull (1876–1941), American football player and coach
 * William T. Bull (1865–1924), American football player and coach
 * William L. Bull (1844–1914), American banker and president of the New York Stock Exchange