William Collier

William Collier may refer to:


 * William Collier Jr. (1902–1987), American actor
 * William Collier Sr. (1864–1944), American writer, director and actor
 * William Collier (colonist) (c. 1585–1671), English settler in Massachusetts
 * William Collier (MP), MP for Truro, 1713–15, and manager of the Drury Lane Theatre
 * William Collier (footballer) (1890–?), Scottish footballer, played for Scotland in 1922
 * William Miller Collier (1867–1956), American diplomat