William Crichton

William Crichton may refer to:
 * William Crichton, 1st Lord Crichton (died 1454), political figure in the late medieval Kingdom of Scotland
 * William Crichton (Jesuit) (c. 1535–1617), Scottish Jesuit
 * William Crichton (engineer) (1827–1889), Scottish engineer and shipbuilder in Turku, Grand Duchy of Finland
 * Wm. Crichton & Co., an engineering and shipbuilding company that operated in Turku
 * William Crichton, 2nd Earl of Dumfries (1598–1691)
 * William Crichton (minister) (1630–1708), Scottish minister, who served as Moderator of the General Assembly in both 1692 and 1697