Colli is an Italian surname. Notable people with the surname include:

Andrea Colli (born 1966), Italian academic Beatrice Colli (born 2004), Italian speed climber Daniele Colli (born 1982), Italian road cyclist Enrico Colli (1896–1982), Italian cross country skier Giorgio Colli (1917–1979), Italian philosopher Ilio Colli (1931–1953), Italian skier Michelangelo Alessandro Colli-Marchi (Michael Colli) (1738– 1808), Austrian general Ombretta Colli (born 1943), Italian singer and politician Piero Colli (1914–2010), Italian footballer Robert Colli (1898–1980), Austrian colonel of Nazi Germany. Tonino Delli Colli (1922–2005), Italian cinematographer Vincenzo Colli (1899–19??), Italian cross country skier