Casaletto di Sopra (Cremasco: ) is a comune (municipality) in the Province of Cremona in the Italian region Lombardy, located about east of Milan and about northwest of Cremona.
Casaletto di Sopra borders the following municipalities: Barbata, Camisano, Fontanella, Offanengo, Ricengo, Romanengo, Soncino, Ticengo.