The Diocese of Trevico (Latin: Dioecesis Trevicensis) was a Roman Catholic diocese located in the town of Trevico in the province of Avellino, Campania, southern Italy.
In 1818, it was suppressed to the Diocese of Lacedonia.
[1][2] 10th Century Established as Diocese of Trevico[2] 1818 June 27: Suppressed to Diocese of Lacedonia[2] 1968: Restored as Titular Episcopal See of Trevico[2] 1818 June 27: Suppressed to the Diocese of Lacedonia