Castelmauro is a comune (municipality) in the Province of Campobasso in the Italian region Molise, located about 30km north of Campobasso. Castelmauro borders the following municipalities: Acquaviva Collecroce, Civitacampomarano, Guardialfiera, Montefalcone nel Sannio, Roccavivara, San Felice del Molise, Trivento.
