Viviani is a surname. Notable people with the surname include:
- Anselmo Viviani (1915–?), Italian cross-country skier
- Antonio Viviani (1560–1620), painter
- Attilio Viviani (born 1996), Italian cyclist
- Elia Viviani (born 1989), cyclist
- Fabio Viviani (chef) (born 1978)
- Fabio Viviani (footballer) (born 1966)
- Federico Viviani (footballer born 1981)
- Federico Viviani (footballer born 1992)
- Guillermo Viviani (1893–1964), Chilean Roman Catholic priest and trade unionist
- Giovanni Buonaventura Viviani (1638–1693), composer and violinist
- Jody Viviani (born 1982), footballer
- Luigi Viviani (disambiguation), multiple people
- Ottavio Viviani (c. 1579–c. 1641), painter
- Raffaele Viviani (1888–1950), author, playwright, and actor
- René Viviani (1863–1925), French politician and prime minister
- Vincenzo Viviani (1622–1703), mathematician and scientist