Alessandria della Rocca (Sicilian: Lisciànnira di la Rocca) is a comune and small agricultural town located in west central Sicily in the northern part of the Province of Agrigento, in Italy.

The remains of the 14th century Castello della Pietra d'Amico can be found about 5 km (3.1 mi) away from the town. The town itself was founded in 1570 by Don Carlo Blasco Barresi, and was initially called Pietra d'Amico after the castle. In 1713, it was renamed Alessandria di Sicilia, while the present name Alessandria della Rocca was adopted by Royal Decree on 7 November 1862.