Viot is a surname. Notable people with the surname include:
- Bernard Viot (born 1937), French racing cyclist
- Jacques Viot (1921–2012), French academic and diplomat
- Jacques Viot (writer) (1898–1973), French novelist and screenwriter
- Patrick Viot (1952–2021), French footballer
- Pierre Viot (1925–2020), French executive
- Vincent Viot (born 1994), French football goalkeeper