William Johnstone

William Johnstone may refer to:

• William Johnstone, 1st Marquess of Annandale (1664–1721), Scottish nobleman
• Sir William Pulteney, 5th Baronet (1729–1805), born William Johnstone, Scottish Member of Parliament
• William Johnstone (VC) (1823–1857), Victoria Cross recipient
• Sir William Johnstone, 2nd Baronet (?–1727), Member of Parliament for Dumfries Burghs, and Dumfriesshire
• Will B. Johnstone (1883–?), writer
• William W. Johnstone (1938–2004), American author
• Billy Johnstone, Australian rugby league player

See also

• William Johnston (disambiguation)
• William Johnson (disambiguation)