Grossi is a surname. Notable people with the surname include:
Alex Grossi (born 1976), American guitaristCarlo Grossi (born c. 1634; died 1688), Italian composer and singerEnzo Grossi (1908–1960), Officer in Italian Navy during World War IIEsther Pillar Grossi (born 1936), Brazilian educator and federal deputy in Rio Grande do SulFabio Grossi (dancer) (born 1977), Italian dancer and ballet teacherFabio Grossi (athlete) (born 1967), retired Italian sprinter who specialized in the 400 metresFranco Grossi (born 1939), Italian discus throwerGabriele Grossi (born 1972), Italian professional football playerGiovanni Francesco Grossi (1653–1697), Italian singer of bel cantoGuy Grossi (born 1965), Australian Chef and media personalityJosé Nicomedes Grossi (1915–2009), Brazilian bishopLodovico Grossi da Viadana (c. 1560–1627), Italian composer, teacher, and Franciscan friar of the Order of Minor ObservantsOreste Grossi (1912–2008), Italian rowerPaolo Grossi (born 1985), Italian professional football playerPaolo Grossi (judge) (born 1933), Italian judgePietro Grossi (1917–2002), Italian composer of computer music, visual artist and hackerTommaso Grossi (1791–1853), Lombard poet and novelistTony Grossi (born 1958), American radio/TV personality