Pertosa is a village and comune of the province of Salerno in the Campania region of south-west Italy.

[4] The village is situated in the eastern side of the province of Salerno, close to the municipalities of Auletta, Polla and Caggiano and to Alburni mountains.

Its only hamlet (frazione) is the little village of Muraglione, in which are located the show caves.

[5] Pertosa is a receptive tourist place principally for its karst show cave system, the Pertosa Caves (Grotte di Pertosa).

The caves are located in the valley below the town, by the river Tanagro.