Capet is a surname that may refer to:
- André Capet (1939–2000), French politician
- Laurent Capet (born 1972), French volleyball player
- Lucien Capet (1873– 1928), French violinist, pedagogue and composer
- Marie-Gabrielle Capet (1761–1818), French Neoclassical painter
- Yann Capet (born 1975), French politician