Lozzolo is a comune (municipality) in the Province of Vercelli in the Italian region Piedmont, located about 80 km northeast of Turin and about 35 km north of Vercelli. As of 31 December 2004, it had a population of 797 and an area of 6.7 km². Lozzolo borders the following municipalities: Gattinara, Roasio, Serravalle Sesia, Sostegno, and Villa del Bosco.