Louis Aleman (c. 1390 - September 16, 1450) was a French cardinal. He was born of a noble family at the castle of Arbent near Bugey. A relative was the Papal Chamberlain. He was successively bishop of Maguelonne (1418), archbishop of Arles (1423) and Cardinal Priest of S. Cecilia (1426). He was a prominent member of the council of Basel, and, together with Cardinal Julian Cesarini, led the party which maintained the supremacy of general councils over the pope's authority.