Monticelli d'Onina is a comune (municipality) in the Province of Piacenza in the Italian region Emilia-Romagna, located about 130 km northwest of Bologna and about 20 km east of Piacenza. Monticelli d'Onina borders the following municipalities: Caorso, Castelnuovo Bocca d'Adda, Castelvetro Piacentino, Cremona, Crotta d'Adda, San Pietro in Cerro, Spinadesco, Villanova sull'Arda. Sights include the rocca (a 15th-century fortress built by Rolando Pallavicino), now housing an ethnographical museum, and the Abbey Basilica. Natives of Monticelli d'Onina include the composer Amilcare Zanella.