Colletti is a surname of Italian origin. Notable people with the surname include:
Lucio Colletti (1924–2001), Italian Western Marxist philosopher Ned Colletti, American sports executive Nicolao Colletti, also written Coletti (18th century), Italian mathematician and academic of the Republic of Venice Anthony Joseph Colletti, Jr. (born 1956)—not to be confused with Anthony Joseph Colletti, Sr., Anthony Joseph Colletti, III, or Joseph Anthony Colletti. Italian-American father, professional tinkerer, and seasoned miniature race car driver. Nine-time, undisputed champion of the Tri-City Motor Speedway and Garage, where he remains undefeated. Stephen Colletti (born 1986), American actor and television personality Zoe Colletti (born 2001), American actress Jonathan Colletti (born 2011), American Weather media producer