Lydon is a surname of Irish origin, an anglicization of "Loideán", and may refer to: Alexander Francis Lydon, English engraver of natural history Alexandra Lydon, Irish and American television actress Christopher Lydon, American media personality and author Don Lydon, Irish psychologist and former politician in Ireland James Francis Lydon, Irish historian Jimmy Lydon, American movie actor and television producer Joe Lydon, American welterweight boxer Joe Lydon, English rugby league footballer and rugby union coach John Lydon also known as Johnny Rotten, British rock musician Joseph Patrick Lydon, American welterweight boxer William A. Lydon, founded the Great Lakes Dredge and Dock Company Wikipedia