Fiorenzo is a masculine Italian given name. The feminine derivative is Fiorenza.

Notable people with the name include:

Fiorenzo (African saint), 5th-century North African bishop and saint Fiorenzo Aliverti (born 1957), Italian cyclist Fiorenzo Angelini (1916–2014), Italian cardinal Fiorenzo Bava Beccaris (1831–1924), Italian general Fiorenzo Carpi (1918–1997), Italian composer and pianist Fiorenzo Chatrer (born 1987), Dutch footballer Fiorenzo Di Giovanni (born 1967), French rower Fiorenzo di Lorenzo (c. 1440 – 1522), Italian painter Fiorenzo Fiorentini (1920–2003), Italian actor, writer, composer, screenwriter and radio personality Fiorenzo Magni (1920–2012), Italian cyclist Fiorenzo Marini (1914–1991), Italian fencer Fiorenzo Maschera (1540–1584), Italian composer Fiorenzo Serra (1921–2005), Italian film director Fiorenzo Stolfi (born 1956), Sammarinese politician Fiorenzo Tomea (1910–1960), Italian painter See also Saint-Florent, Haute-Corse, a commune in Corsica, also called San Fiorenzo.