Invorio is a comune, or municipality, located in the Province of Novara within the Piedmont region of northern Italy. It is situated approximately 100 kilometres northeast of Turin and about 35 kilometres northwest of Novara.
The municipality shares borders with several neighboring areas, including Ameno, Arona, Bolzano Novarese, Borgomanero, Briga Novarese, Colazza, Gattico-Veruno, Gozzano, Meina, and Paruzzaro.