Clogher is one of the twenty-four dioceses established at the Synod of Ráth Breasail in 1111 and consists of much of south west Ulster, taking in most of counties Fermanagh and Monaghan and parts of Tyrone, Cavan, Leitrim and Donegal.
The title Bishop of Clogher was resumed after 1193, when County Louth was restored to the see of Armagh.
The present Church of Ireland bishop is the Right Reverend Dr. Ian W. Ellis, elected in September 2020 and consecrated in April 2021[3] The Church of Ireland bishop is unique in having two diocesan cathedrals within a single diocese, with one Dean and chapter between them: the Cathedral Church of Saint Macartin, Enniskillen and the Cathedral Church of Saint Macartan, Clogher.
[4][5] The current Roman Catholic bishop is the Most Reverend Lawrence Duffy who was appointed by the Holy See on 8 December 2018 and ordained bishop on 10 February 2019.
The Roman Catholic bishop's seat (cathedra) is located at the Cathedral Church of Saint Macartan, Monaghan.