Castelbelforte (Mantovano: ) is a comune (municipality) located in the Province of Mantua in the Italian region Lombardy. It is about east of Milan and about northeast of Mantua. , it had a population of 2,636 and an area of .
Castelbelforte borders the following municipalities: Bigarello, Erbè, Roverbella, San Giorgio di Mantova, SorgÃÂ, Trevenzuolo.