Malcolm Douglas Lyon (22 April 1898 – 17 February 1964), generally known as Dar Lyon was an English first-class cricketer who played for Somerset County Cricket Club through the 1920s. He was a right-handed top order batsman known for his beautiful driving who occasionally captained and kept wicket for the county. He also became a politician, barrister, and later a magistrate, colonial administrator and judge in various British colonies. He was Chief Justice of the Seychelles from 1948 to 1957.