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