San Pietro Apostolo, Minor basilica and parish church in Trapani, Italy.

San Pietro Apostolo is a minor basilica and parish church located in central Trapani with a stone facade featuring classical proportions. The interior contains multiple altars, with the high altar dedicated to Saint Peter displaying baroque artwork and religious imagery.

Tradition holds it was Trapani's first Christian place of worship, built over a pagan temple. Count Roger I of Sicily rebuilt and enlarged it in 1076, granting it the rank of arcipretale insigne collegiata. It was consecrated on 29 October 1726 by Bishop Giuseppe Barlotta Ferro, rebuilt in the 18th century by the theologian-architect Giovanni Biagio Amico and completed in 1775.

The church is dedicated to the Apostle Peter, not the Holy Trinity, and oral tradition holds it was the first Christian place of worship in Trapani, built over a pagan temple after Peter's passage. In 1535 Charles V offered a captured Turkish-Ottoman banner here, and in 1801 Ferdinand III received the blessing of the Blessed Sacrament within its walls.

The church is conveniently located in Trapani's central district and is open to visitors during worship times. Checking service schedules in advance helps ensure access during your visit.

The organ above the entrance, built by Palermo's Francesco La Grassa between 1836 and 1847, fills the whole counter-facade gallery and has about 4,000 pipes across three organs and seven manuals, tuned to a non-traditional pitch.