Marie-Noémi Cadiot (French: [kadjo]; 12 December 1828 or 1832, Paris – 10 April 1888, Saint-Jean-Cap-Ferrat) was a French sculptor and writer of the 19th century.
She was the second wife of Eliphas Levi and had a daughter with him; they later separated.
Cadiot later married the Marquis de Montferrier but separated, and then married Maurice Rouvier on 3 September 1872.
Cadiot published Contes à faire peur in 1857, Un drame en province - La statue d'Apollon in 1863, Révoltée!, Un naufrage parisien in 1869, Château-Gaillard in 1874, and Victoire Normand in 1862.