Portoscuso (Portescusi in Sardinian language) is a comune (municipality) in the Province of South Sardinia in the Italian region Sardinia, located about 75km west of Cagliari and about 14km northwest of Carbonia. The languages used here are Italian and Sardinian Campidanese. Portoscuso borders the following municipalities: Carbonia, Gonnesa, and San Giovanni Suergiu.
