Lydon is a surname of
Irish origin, an anglicization of "Loideán", and may refer to:
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Alexander Francis Lydon (1836–1917), English engraver of natural history
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Alexandra Lydon (born 1979), Irish and American television actress
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Christopher Lydon (born 1940), American media personality and author
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Don Lydon (born 1938), Irish psychologist and former politician in Ireland
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James Francis Lydon (1928–2013), Irish historian
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Jimmy Lydon (1923–2022), American movie actor and television producer
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Joe Lydon (1878–1937), American welterweight boxer
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Joe Lydon (born 1963), English rugby league footballer and rugby union coach
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John Lydon
John Joseph Lydon ( ; born 31 January 1956), also known by his former stage name Johnny Rotten, is a British-born singer, songwriter, author, and television personality. He was the lead vocalist of the punk rock band the Sex Pistols, which was ...
(born 1956) also known as Johnny Rotten, British rock musician
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Joseph Patrick Lydon (1878–1937), American welterweight boxer
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William A. Lydon (1863–1918), founded the Great Lakes Dredge and Dock Company
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Surnames of Irish origin
English-language surnames
Anglicised Irish-language surnames