The Roman Villa of Aiano-Torraccia di Chiusi (San Gimignano, Tuscany) is one of the most intriguing large-scale residential complexes of Late Antiquity, with its peculiar architectural structures and its extension. This paper aims to present for the first time what remains of the wall paintings of the villa, which was very richly decorated, as demonstrated by the sectilia and the mosaics found in the excavations of the Université catholique de Louvain, which conducts the excavation project since 2005.