Louis Aleman was a 15th-century French cardinal and prelate who served as the Archbishop of Arles and the Bishop of Maguelonne. Born around 1390 to a noble family in Arbent, he was a member of the Canons Regular of Saint John Baptist. His ecclesiastical career was marked by significant political involvement during the Western Schism, including a period of opposition to Pope Eugene IV. After being stripped of his dignities, he eventually helped resolve the schism by advising the antipope to abdicate, leading to his full restoration.