Gavi is a comune in the Province of Alessandria in the Italian region Piedmont, located about 100 kilometres southeast of Turin and about 30 kilometres southeast of Alessandria. Gavi borders the following municipalities: Arquata Scrivia, Bosio, Carrosio, Francavilla Bisio, Isola del Cantone, Novi Ligure, Parodi Ligure, San Cristoforo, Serravalle Scrivia, Tassarolo, and Voltaggio.