Roman Catholic Diocese of Ossory

Diocese of Ossory

Dioecesis Ossoriensis

Deoise Osraí
St. Mary's Cathedral, Kilkenny, the episcopal seat of the bishops of Ossory
Location
CountryIreland
TerritoryMost of County Kilkenny and parts of counties Laois and Offaly
Ecclesiastical provinceProvince of Dublin
MetropolitanArchdiocese of Dublin
Statistics
Area761 sq mi (1,970 km2)
Population
  •  
  • 84,244
Information
DenominationCatholic Church
Sui iuris churchLatin Church
RiteLatin Church
EstablishedDiocese in 1111
CathedralSt Mary's Cathedral, Kilkenny
Patron saintSt Kieran
Current leadership
PopeLeo XIV
BishopNiall Coll
Bishop of Ossory
Metropolitan ArchbishopDermot Farrell
Archbishop of Dublin
Map
Website
ossory.ie

The Diocese of Ossory (Latin: Dioecesis Ossoriensis; Irish: Deoise Osraí) is a Latin Church diocese of the Catholic Church in eastern Ireland. It is one of three suffragan dioceses in the ecclesiastical province of the Metropolitan Archbishop of Dublin and has been led by Niall Coll since 2023.

The Cathedral church is St. Mary of the Assumption, in Kilkenny.