Benoist is a surname and may refer to:
- Alain de Benoist, French academic
- Antoine Benoist, 18th Century French artist - Painter and sculptor to Louis XIV
- Alexandre Benois, Russian ballet and stage designer
- Élie Benoist, French Protestant minister
- François Benoist, French organist, composer, and pedagogue
- Gabriel Benoist (1891–1964), a French writer in the Cauchois dialect of the Norman language
- Jean-Marie Benoist
- Louis Auguste Benoist, 19th Century pioneer banker and financier
- Marcel Benoist, French lawyer (died 1918) who established the Swiss Marcel Benoist Prize
- Marie Guilhelmine Benoist, 19th Century painter
- Melissa Benoist, American actress and singer
- Michel Benoist (1715-1774), French Jesuit scientist
- Raymond Benoist (1881-1970), botanist
- Robert Benoist, French Grand Prix motor racing driver and war hero
- Thomas Wesley Benoist, early aviator