Monzambano (Upper Mantovano: Mosambà) is a comune (municipality) in the Province of Mantua in the Italian region Lombardy, located about 120 kilometres (75 mi) east of Milan and about 25 kilometres (16 mi) northwest of Mantua. Its frazione of Castellaro Lagusello is a member of the I Borghi più belli d'Italia ("The most beautiful villages of Italy") association.