The Cathedral of San Gerardo is the main church or duomo of the city of Potenza, capital of the province of the same name, and of the region of Basilicata, Italy.
A temple at the site, dedicated to the Virgin of the Assumption, likely dated to the 5th or 6th century, when it was supposedly founded by Saint Orontius of Lecce.
A new church dedicated to St Gerardo della Porta, who became patron of the town and whose relics are sheltered here, was built between the 12th and 13th centuries, under the patronage of the bishop Bartolomeo (1197-1206).
The five-story stone belltower from this church, attributed to designs by Sàrolo di Muro Lucano, still exists.
The present church is mainly due to a reconstruction during 1783 to 1799 in neoclassical-style with a design by Antonio Magri, a pupil of Luigi Vanvitelli.