The Diocese of Trapani (Latin: Dioecesis Drepanensis) is a Latin diocese of the Catholic Church in Sicily.

Trapani was subject to the see of Mazzara, from the Norman Conquest until 1844, when the diocese was created.

Its first bishop was the Redemptorist Vincenzo M.

[1] This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed.

New York: Robert Appleton Company.