Cioni is an Italian surname. Notable people with the surname include:
Daniele Cioni (1959-2021), Italian sport shooter Dario Cioni (born 1974), Italian cyclist Graziano Cioni (born 1946), Italian politician. Gilles Cioni (born 1984), French football player Filippo Cioni (1461-1520), Italian translator and notary Oreste Cioni (1913 – after 1966), Italian football player and manager Renato Cioni (1929–2014), Italian opera singer Vittorio Cioni (1900–1981), Italian rower
See also 12812 Cioni, main-belt asteroid named after Giovanni Cioni (1943–2002), an amateur astronomer