Arborio is a comune (municipality) in the Province of Vercelli in the Italian region of Piedmont, located about 70 kilometres (43Â mi) northeast of Turin and about 20 kilometres (12Â mi) north of Vercelli.
Arborio borders the municipalities of Ghislarengo, Greggio, Landiona, Recetto, Rovasenda, San Giacomo Vercellese, Sillavengo, Vicolungo, and Villarboit.