Castello Cantelmo (Italian for Cantelmo Castle) is a Middle Ages castle in Pettorano sul Gizio, province of L'Aquila, Abruzzo, southern-central Italy.The castle, built around the 11th century, overlooks the Gizio river valley and the Valle Peligna. It has an irregular plan with cylindrical, massive towers at the north-western and south-western corners, while at south-eastern one are the remains of a quadrangular tower.