Vianna is a surname (an archaic spelling of Viana). Notable people with the surname include:
Arnaldo Vianna (1947–2026), Brazilian politician Caio Vianna Martins (1923–1938), Brazilian Scout Herbert Vianna (born 1961), Brazilian singer, songwriter and guitarist João Vianna (born 1963), Brazilian basketball player José Vianna da Motta (1868–1948), Portuguese pianist and composer Klauss Vianna (1928–1992), Brazilian dancer, choreographer and theater director Lucila Vianna da Silva (born 1976), Brazilian handball player Oduvaldo Vianna Filho (1936–1974), Brazilian playwright Tyrteu Rocha Vianna (1898–1963), Brazilian poet Vitor Vianna, Brazilian mixed martial artist
See also Viana (disambiguation) Viana do Castelo Municipality, a Portuguese municipality Vianna da Motta International Music Competition, a music competition Vianna Gardiner, Bahamian politician