Buffet is a surname of French origin. People with the surname include:
- The Buffet family of musical instrument makers
- Bernard Buffet (1928–1999), a French painter
- Louis Buffet (1818–1898), a 19th-century French statesman
- Marie-George Buffet (born 1949), a French politician
- Yannick Buffet (born 1979), a French ski mountaineer