Aymeri de Montesquiou (born 7 July 1942 in Marsan, Gers) is a member of the Senate of France, representing the Gers department. He is a member of the Radical Party. Since 1976, he is the mayor of Marsan.
He is a member of the Montesquiou family. A descendant of Charles de Batz-Castelmore d'Artagnan, he changed his name to Aymeri de Montesquiou d'Artagnan on May 18, 2011.