Rialto ( in Ligurian: Riaoto ) is a municipality with 542 inhabitants (as at 31 December 2012) in the Italian region of Liguria. Politically it belongs to the province of Savona.
Rialto is located in the hinterland of Finale Ligure, at the headwaters of the Rio Pora. The municipality belongs to the Comunità Montana Pollupice and is about 35 kilometers from the provincial capital Savona.
According to the Italian classifications for seismic activity, the community of zone 4 was assigned. This means that Rialto is located in a seismically inert zone.
The municipality is classified under climate category E, since the number of degree days has a value of 2328. This means that in Italy legally regulated heating season is between October 15 and April 15, for 14 hours each day.