Castrocielo is a comune (municipality) in the province of Frosinone in the Italian region Lazio, located about southeast of Rome and about southeast of Frosinone.
Castrocielo borders the following municipalities: Aquino, Colle San Magno, Piedimonte San Germano, Pontecorvo, Roccasecca.
Angelo Savoldi (1914-2013), American professional wrestler