Marthe Camille Bachasson, 3rd Count of Montalivet (24 April 1801, Valence – 4 January 1880, Saint-Bouize) was a French statesman and a Peer of France.
Second son of Jean-Pierre Bachasson, 1st count of Montalivet (1766–1823), peer of France and Minister of Emperor Napoleon, he was born in Valence, Drôme.
After the 1848 Revolution, he defended the action of the July Monarchy, and, as intimate friend of the former royal family, acted as executor of the will of King Louis-Philippe.
After the fall of the Second French Empire in 1870, he rallied the "conservative republican" ideas of his friend Adolphe Thiers, and thus considerably eased the vote by the centre right of the constitutional laws of 1875, establishing a Republic in France.
He married on 26 January 1828 Clémentine Françoise Paillard-Duclère (Laval, 21 February 1806 - Paris, 3 March 1882), and had five daughters: