Rialto is a comune (municipality) in the Province of Savona, in the Italian region of Liguria. It is located about 60 kilometres (37 mi) southwest of Genoa and about 20 kilometres (12 mi) southwest of Savona.
The municipality covers an area of 19.9 square kilometres (7.7 sq mi). As of 31 December 2004, it had a population of 570.