Betti is a surname. Notable people with the name include:
Biagio Betti (1535–1605), Italian painter Emilio Betti (1890–1968), Italian jurist, philosopher and theologian Enrico Betti (1823–1892), Italian mathematician Freda Betti (1924–1979), French opera singer Henri Betti (1917–2005), French composer and pianist Laura Betti (1927–2004), Italian actress Liliana Betti (1937–1998), Italian screenwriter and director Luca Betti (born 1978), Italian rally driver Natale Betti (1826–1888), Italian painter Paulo Betti (born 1952), Brazilian stage, film and television actor Priscilla Betti (born 1989), French singer and actress Riccardo Betti (born 1963), professor of Mechanical Engineering, Physics and Astronomy at the University of Rochester Sigismondo Betti (1699–1777), Italian painter Ugo Betti (1892–1953), Italian judge and author Umberto Betti (1922–2009), Italian Cardinal of the Roman Catholic Church
See also Betty (surname) Betti (given name)