Terragni is a surname. Notable people with the surname include:
Attilio Terragni (1896–1958), a member of the rightist Monarchist National Party Dino Terragni (1927–1979), an Italian entrepreneur and inventor Giuseppe Terragni (1904–1943), an Italian architect Marco Terragni (1930–2006), an Italian entrepreneur and inventor
See also Rodolfo Terragno Terrani