Alfons de Tous (died February 3, 1421) was president of the Generalitat of Catalonia 1396-1413, succeeding when the latter left Catalonia in 1396 to become a royal ambassador. During the Western Schism, he aligned with the Antipope Benedict XIII and the revived line of Avignon popes, and continued that support until the Council of Constance, when Ferdinand I of Aragon withdrew his support for Avignon, at which point Alfons tried unsuccessfully to convince Benedict to voluntarily renounce his claim to the papacy.