Trapani Cathedral, formally the Cathedral Basilica of Saint Lawrence the Martyr (Italian: Basilica cattedrale di San Lorenzo martire), is the cathedral of the Diocese of Trapani in Trapani, Sicily. Originally founded as a community church in the medieval period, it was elevated to cathedral status in 1844. The building is noted for its eighteenth-century Baroque transformation, particularly the façade and interior interventions designed by the architect Giovanni Biagio Amico.