The following is the List of the Catholic dioceses of Iran.

List of dioceses

Armenian Catholic Church Ecclesiastical Province of Cilicia: Eparchy of Ispahan

Chaldean Catholic Church Immediately Subject to the Patriarch: Archeparchy of Ahwaz

Ecclesiastical Province of Tehran: Metropolitan Archeparchy of Tehran

Ecclesiastical Province of Urmya: Metropolitan Archeparchy of Urmia Eparchy of Salmas

Latin Church

Immediately subject to the Holy See: Archdiocese of Teheran-Isfahan

External links GCatholic.org. Catholic-Hierarchy entry.