Fiori is an Italian surname. Notable people with the surname include:
Adriano Fiori (1865–1950), Italian botanist Al Fiori (born 1929), American former Los Angeles radio personality and pioneer rock and roll DJ Attilio Fiori (1883–1958), Italian entomologist Carlos Eduardo de Fiori Mendes (born 1986), better known as Cadù, Brazilian footballer Diego Fulvio Fiori (born 1975), Italian artist, director and film producer Ed Fiori (1953–2025), American golfer Ezio Fiori (born 1949), Italian bobsleigher Fabrizio Della Fiori (born 1951), Italian basketball player Federico Fiori (1535–1612), Italian Renaissance painter and printmaker Henri Fiori (1881–1963), French politician Jennifer Fiori (1986–2021), Italian cyclist Juliano Fiori (born 1985), Brazilian rugby sevens player Mario P. Fiori (born 1941), United States Assistant Secretary of the Army Patrick Fiori (born 1969), French singer Publio Fiori (1938–2024), Italian politician Serge Fiori (1952–2025), Canadian singer-songwriter and musician Valerio Fiori (born 1969), Italian footballer