Roman Catholic Archdiocese of Armagh

Archdiocese of Armagh

Archidioecesis Armachana

Ard-Deoise Ard Mhacha
St. Patrick's Roman Catholic Cathedral, Armagh
Coat of arms
Location
CountryNorthern Ireland, Republic of Ireland
TerritoryCounty Louth, most of County Armagh and parts of counties Tyrone, Londonderry and Meath
Ecclesiastical provinceArmagh
HeadquartersAra Coeli, Armagh
Coordinates54°20′53″N 6°39′22″W / 54.348°N 6.656°W / 54.348; -6.656
Statistics
Area3,472 km2 (1,341 sq mi)
Population
  • Total
  • Catholics
  • (as of 2018)
  • 348,000
  • 242,860 (69.8%)
Parishes61
Information
DenominationCatholic
Sui iuris churchLatin Church
RiteRoman Rite
Established445
(As Diocese)
1152
(As Archdiocese)
CathedralSt Patrick's Cathedral, Armagh
Patron saint
Secular priests138
Current leadership
PopeLeo XIV
ArchbishopEamon Martin
Auxiliary BishopsMichael Router
Vicar General
  • Mgr Colum Curry
    Dean Kevin Donaghy
    Canon Eugene Sweeney
Episcopal VicarsFr Malachy Conlon
Mgr James Carroll
Fr Gerard Campbell
Canon Benedict Fee
Judicial VicarCanon Michael Toner
Bishops emeritusSeán Brady
Map
Website
armagharchdiocese.org

The Roman Catholic Archdiocese of Armagh (Latin: "Archidioecesis Ardmachana"; Irish: "Ard-Deoise Ard Mhacha") is a Latin ecclesiastical jurisdiction of the Catholic Church situated in Northern Ireland. Its ordinary is the Archbishop of Armagh, who serves concurrently as the metropolitan of the ecclesiastical province of Armagh and holds the title of Primate of All Ireland, the highest-ranking prelate in the Irish Catholic hierarchy.

The mother church of the archdiocese is St Patrick's Cathedral, a site of profound historical and spiritual significance. The archdiocese’s claim to primatial status is rooted in its founding by Saint Patrick circa 445, establishing it as the principal see of Irish Christianity. Its recognition as a metropolitan province was formalized in 1152 by the Synod of Kells, affirming its ecclesial preeminence.

The current archbishop, Eamon Martin, has held office since 2024. He is assisted by auxiliary bishop Michael Router, appointed in 2019.