Cioni is an Italian surname. Notable people with the surname include:
Dario Cioni (born 1974), Italian professional cyclist, currently riding for Team Sky
Maik Robert Cioni (born 1979), Italian professional cyclist
Gilles Cioni (born 1984), French footballer, currently playing for SC Bastia
Oreste Cioni (1913 – after 1966), Italian footballer and football manager
Renato Cioni (born 1929), Italian opera singer
Vittorio Cioni (1900–1981), Italian rower and Olympian
