The Château de Guilleragues is a medieval, previously ruined but restored castle in the commune of Saint-Sulpice-de-Guilleragues in the Gironde département of France. This early 14th-century castle, built at the side of a small valley, consists of a long rectangular building, composed of a fortified house flanked by two towers and two watchtowers at either extremity of an annexe of the same height, from 1564. The lower court and the common buildings in the north east also date from the 16th century.