Cavaglietto is a municipality in the Province of Novara in the Italian region Piedmont, located about 90 kilometres (56 mi) northeast of Turin and about 20 kilometres (12 mi) northwest of Novara.

Cavaglietto borders the following municipalities: Barengo, Cavaglio d'Agogna, Fontaneto d'Agogna, Suno, and Vaprio d'Agogna.