Tonon is a surname. Notable people with this surname include:
Amelia Tonon (1899–1961), Italian entomologist Brigitte Affidehome Tonon, Beninois researcher, author, basketball coach, and former player Carlo Tonon (1955–1996), Italian road bicycle racer Garry Tonon (born 1991), American Brazilian Jiu-Jitsu practitioner Pedro Tonon Geromel (born 1985), Brazilian footballer