Confalonieri is an Italian surname. Notable people with the surname include:
Ansperto Confalonieri (died 7 December 881), archbishop of Milan from 861 to 881 Carlo Confalonieri (1893–1986), Italian Cardinal of the Roman Catholic Church Christina Confalonieri (born 1981), Italian-born South Korean broadcaster and radio host Corrado Confalonieri (1284–1351), Italian saint, penitent and hermit Diego Confalonieri (born 1979), Italian fencer Fedele Confalonieri (1937–), Italian manager, President of Venerable Factory of the Duomo of Milan Federico Confalonieri (1785–1846), Italian revolutionist Giulio Confalonieri (1896–1972), Italian musician, musicologist, composer and musical critic Luigi Girolamo Cusani-Confalonieri, Ambassador of Italy to the United States from 1910 to 1914 Maria Giulia Confalonieri (born 1993), Italian track and road racing cyclist Vittorio Badini Confalonieri (1914–1993), Italian politician