Castelo de Quindous is a late medieval fortress located in the parish of San Xusto de Quindous in Cervantes municipality, Lugo province, Galicia. Built in the 14th-15th century by the Quindós family, the fortress served as a residence for the Marquises of San Sadurniño through the 19th century. The castle features a rectangular ground plan with two cylindrical towers, displaying the characteristic fortress design of its era with well-defined volumes and minimal windows. Constructed to be defensible yet imposing, the structure remains private property and is not open to the public, preserving its historic character as a symbol of Galician noble heritage.