Armeno (Piedmontese and Lombard: Armagn) is a comune (municipality) in the Province of Novara in the Italian region of Piedmont, located about 100 kilometres (62 mi) northeast of Turin and about 45 kilometres (28 mi) northwest of Novara.

Armeno borders the following municipalities: Ameno, Brovello-Carpugnino, Colazza, Gignese, Massino Visconti, Miasino, Nebbiuno, Omegna, Pettenasco and Pisano.