Jean-François-Maurice-Arnauld Dudevant, known as Baron Dudevant but better known by the pseudonym Maurice Sand, was a French writer, artist and entomologist. He studied art under Eugène Delacroix and also experimented in various other subjects, including geology and biology.

He was the elder child and only son of George Sand, a French novelist and feminist, and her husband, Baron François Casimir Dudevant. In addition to his numerous novels, he is best remembered for his monumental study of commedia dell'arte – Masques et bouffons (comédie italienne), 1860.