William Berkeley
William Berkeley may refer to:
- William [de Berkeley, 1st Marquess of Berkeley], English nobleman
- William Berkeley (MP [died 1552)], MP for Hereford
- William Berkeley (governor), colonial governor of Virginia
- William Berkeley (Royal [Navy officer)], English naval officer
- William Berkeley, [4th Baron Berkeley of Stratton], English politician and judge
- William Berkeley, 1st Earl FitzHardinge, British landowner and politician
- W. R. Berkley, founder and chairman of W. R. Berkley Corporation