Trivento is a comune (municipality) and Catholic episcopal see in the Province of Campobasso in the southern Italian region Molise, located about 25 km northwest of Campobasso. Trivento borders the following municipalities: Castelguidone, Castelmauro, Civitacampomarano, Lucito, Roccavivara, Salcito, San Biase, Sant'Angelo Limosano and Schiavi di Abruzzo. Its church of Ss. Nazario, Celso e Vittore, dedicated to St. Nazarius, St. Celsus and St. Victor, is the cathedral episcopal see of the Roman Catholic Diocese of Trivento.