Tonon is a surname. Notable people with this surname include:
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Amelia Tonon (1899–1961), Italian entomologist
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Brigitte Affidehome Tonon, Beninois researcher, author, basketball coach, and former player
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Carlo Tonon (1955–1996), Italian road bicycle racer
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Garry Tonon
Garry Lee Tonon (born September 12, 1991) is an American submission grappler and mixed martial artist. He is a five-time Eddie Bravo Invitational champion, and has won titles at ADCC submission wrestling championship, IBJJF World and Pan Americ ...
(born 1991), American Brazilian Jiu-Jitsu practitioner
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Pedro Tonon Geromel (born 1985), Brazilian footballer
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