Gritti is an Italian surname. Notable people with the surname include:
Aloisio Gritti (died 1534), Venetian noble Andrea Gritti (1455–1538), Doge of Venice Carillo Gritti (1942–2016), Brazilian Roman Catholic bishop Cornelia Barbaro Gritti (1719–1808), Venetian poet and salon-holder Lodovico Gritti (1480–1534), Venetian politician Matteo Gritti (born 1980), Italian footballer Triadan Gritti, 15th-century Venetian nobleman, diplomat and military officer