Castel d'Ario

Castel d'Ario (Mantovano: Castlar) is a comune (municipality) in the Province of Mantua in the Italian region Lombardy, located about 150 km east of Milan and about 15 km east of Mantua. It was the birthplace of race car driver Tazio Nuvolari.

Castel d'Ario borders the following municipalities: Bigarello, Roncoferraro, Sorgà, Villimpenta.