Santo Stefano d'Aveto (Ligurian: San Stê) is a comune (municipality) in the Metropolitan City of Genoa in the Italian region Liguria.

In the 12th century AD, Emperor Frederick Barbarossa conferred the fief of Santo Stefano d'Aveto upon the Malaspina family, who then constructed the ponderous castle.

[4] The cheese itself is produced from unpasteurized bovine whole milk principally from the Bruno-alpina or Cabannina cattle races, coagulated with veal rennet, either in paste or powder form, at about 35 °C (95 °F), mixing for 35 minutes, breaking apart large curds until the mixture is curdled to the size of rice.

[5] Santo Stefano d'Aveto is served by Strada Provinciale 654 della Val di Nure (SP-654), which connects it to Rezzoaglio.

Another prominent use of the local, winding roads is the Val d'Aveto Rally, featuring automobile races annually since 1975.