Longo is a surname. Notable people with the surname include:Alessandro Longo (1864–1945), Italian composer and musicologist Andrea Longo (disambiguation), multiple people Annalie Longo, New Zealand women's football player Antonio Longo (disambiguation), multiple people Bartolo Longo (1841–1926), Italian lawyer beatified by the Roman Catholic Church Carlos Ortiz Longo, Puerto Rican mechanical and materials science engineer Christian Longo, convicted murderer Dennise Longo Quiñones, Puerto Rican lawyer and government official Evan Longoria (, nicknamed Longo Jeannie Longo, French racing cyclist Joseph S. Longo, Justice of the Connecticut Supreme Court Luigi Longo, Italian communist politician Mike Longo, American jazz pianist, composer, and author Robert Longo, American painter and sculptor Roberto Longo, Italian road racing cyclist Roberto Longo, Italian mathematician and mathematical physicist Samuele Longo, Italian professional footballer Tom Longo, American football defensive back Valter Longo, Italian biogerontologist and cell biologist
