These lists the Catholic dioceses of the Catholic Church in the United Kingdom. The Catholic Church is not organised on a state basis in the United Kingdom. In the island of Great Britain, the Church is organised into two separate hierarchies or episcopal conferences: the Catholic Church in England and Wales, and the Catholic Church in Scotland. In the island of Ireland, Northern Ireland is a constitutional part of the United Kingdom. No separate episcopal conference exists for Northern Ireland; instead, the Church is part of the hierarchy or episcopal conferences of the Catholic Church in Ireland. There are also a number of Eastern Catholic dioceses in the UK.
Within the island of Great Britain, the Episcopal Conference of England and Wales has five provinces, subdivided into 22 dioceses; the Episcopal Conference of Scotland has two provinces, subdivided into 8 dioceses.
The Catholic dioceses located in Northern Ireland are organised together with those in the Republic of Ireland, as the Catholic Church in Ireland was not divided when civil authority in Ireland was partitioned in the 1920s. All dioceses in Northern Ireland are part of the ecclesiastical province of Armagh. This province approximates the civil province of Ulster.
The following suffragans of Armagh are located only in the Republic of Ireland; no part is their territory is located in Northern Ireland.
There are two Eastern Catholic sui juris churches in Great Britain that are in communion with the Holy See:
In church governance, a diocese or bishopric is the ecclesiastical district under the jurisdiction of a bishop.
An ecclesiastical province is one of the basic forms of jurisdiction in Christian Churches with traditional hierarchical structure, including Western Christianity and Eastern Christianity. In general, an ecclesiastical province consists of several dioceses, one of them being the archdiocese, headed by a metropolitan bishop or archbishop who has ecclesiastical jurisdiction over all other bishops of the province.
The Roman Catholic Archdiocese of Cardiff is an archdiocese of the Latin Rite of the Catholic Church which covers the south-east portion of Wales and the county of Herefordshire in England. The Metropolitan Province of Cardiff therefore covers all of Wales and part of England. Cardiff's suffragan dioceses are the Diocese of Menevia and the Diocese of Wrexham.
The Archbishop of Southwark is the Ordinary of the Roman Catholic Archdiocese of Southwark in England. As such he is the Metropolitan Archbishop of the Province of Southwark.
The Eparchy of Saints Peter and Paul of Melbourne is a Ukrainian Greek Catholic Church ecclesiastical territory or eparchy of the Catholic Church in Australia. Headquartered in Melbourne, it is a suffragan in the ecclesiastical province of the metropolitan Archbishop of Melbourne, a Latin Church territory.
Universalis Ecclesiae was a papal bull of 29 September 1850 by which Pope Pius IX recreated the Roman Catholic diocesan hierarchy in England, which had been extinguished with the death of the last Marian bishop in the reign of Elizabeth I. New names were given to the dioceses, as the old ones were in use by the Church of England. The bull aroused considerable anti-Catholic feeling among English Protestants.
The Diocese of Tagbilaran is one of the 72 ecclesiastical territories called dioceses of the Catholic Church in the Philippines. It is one of 2 dioceses in the province of Bohol and is part of the ecclesiastical province of the Cebu. The Diocese of Tagbilaran was established on November 8, 1941.
A metropolis religious jurisdiction, or a metropolitan archdiocese, is an episcopal see whose bishop is the metropolitan bishop of an ecclesiastical province. Metropolises, historically, have been important cities in their provinces.
Maronite Catholic Eparchy of San Charbel in Buenos Aires is a Maronite Church ecclesiastical territory or eparchy of the Catholic Church in Argentina. It is a suffragan eparchy in the ecclesiastical province of the metropolitan Archdiocese of Buenos Aires, a Latin Church archdiocese.
An ecclesiastical region is a formally organised geographical group of dioceses, ecclesiastical provinces or parishes, without a proper Ordinary as such, in Catholic or Protestant Churches.