Valduggia is a comune (municipality) in the Province of Vercelli in the Italian region Piedmont , located about 90 kilometres (56 mi) northeast of Turin and about 45 kilometres (28 mi) north of Vercelli.

Valduggia borders the following municipalities: Boca, Borgosesia , Cellio con Breia, Gargallo, Grignasco , Madonna del Sasso, Maggiora , Pogno , and Soriso .