Chiacchio is a surname. Notable people with the surname include:
People Martina Chiacchio (born 2000), Italian weightlifter Matias Chiacchio (born 1988), Argentine footballer Umberto Chiacchio (1930–2001), Italian politician
See also Darren Chiacchia, (born 1964), American equestrian Kenneth Chiacchia, (born 1961), American writer