Bonanno is an Italian surname derived from a medieval given name meaning 'good year'. Notable people with the surname include:Bonanno crime family, a Mafia family in New York City
Joseph Bonanno (1905–2002), founder
Salvatore Bonanno (1932–2008), son of Joseph
Alfio Bonanno, Australian-Italian tenor, songwriter, musician and composer
Alfredo M. Bonanno (1937–2023), Italian anarchist
Anthony Bonanno, Maltese archeologist
Benny Bonanno, American politician
Bert Bonanno, American track and field coach and sports administrator
George Bonanno, American clinical psychologist and pioneer of bereavement research
Giovanna Bonanno, Italian alleged witch and poisoner
Giovanni Bonanno, Italian racing driver
Joseph A. Bonanno, American optometrist
Kathleen Sheeder Bonanno (1956–2017), American poet, teacher, and contributing editor to The American Poetry Review
Margaret Wander Bonanno (1950–2021), American science fiction author
Mark Bonanno, Australian comedian
Mike Bonanno, American multimedia artist, leading member of The Yes Men
Nicholas Bonanno (1927–2002), American trade unionist
Nicolás Bonanno, Argentine handball player
Rinaldo Bonanno (1545–1600), Italian sculptor
Robin Bonanno, American race car driver