The Bishop of Tuam, Killala and Achonry is the Church of Ireland Ordinary of the united Diocese of Tuam, Killala and Achonry in the Province of Armagh.  The present incumbent is the Right Reverend Patrick Rooke.
The bishop has two episcopal seats (Cathedra): St. Mary's Cathedral, Tuam and St Patrick's Cathedral, Killala.  There had been a third, St. Crumnathy’s Cathedral, Achonry, but it was deconsecrated in 1998 and is now used for ecumenical events. 
Following the retirement in January 2011 of the Right Reverend Richard Henderson, it was proposed that no successor be elected immediately, so as to give a committee time to consider the future of the diocese; this proposal was, however, defeated on 5 March 2011 at a special meeting of the Church of Ireland General Synod called to consider the suggestion.   A successor was accordingly elected.
|Bishops of Tuam, Killala and Achonry|
|1839||1866||Thomas Plunket||Nominated 5 April 1839; consecrated 14 April 1839; also became 2nd Baron Plunket in 1854; died 19 October 1866|
|1867||1890||Charles Bernard||Appointed by letters patent 30 November 1866; consecrated 30 January 1867; died 31 January 1890|
|1890||1913||James O'Sullivan||Elected 14 April 1890; consecrated 15 May 1890; resigned February 1913; died 10 January 1915|
|1913||1919||Benjamin Plunket||Elected 13 April 1913; consecrated 10 May 1913; translated to Meath 15 October 1919|
|1920||1923||Arthur Edwin Ross||Elected 15 January 1920; consecrated 24 February 1920; died 24 May 1924|
|1923||1927||John Orr||Elected 18 July 1923; consecrated 6 August 1923; translated to Meath 15 November 1927|
|1928||1931||John Harden||Elected 15 November 1927; consecrated 6 January 1928; died 2 October 1931|
|1932||1938||William Hardy Holmes||Elected 15 December 1931; consecrated 2 February 1932; translated to Meath 19 October 1938|
|1939||1957||John Crozier||Elected 23 November 1938; consecrated 2 February 1939; resigned 31 December 1957; died 1966|
|1958||1969||Arthur Butler||Elected 9 April 1958; consecrated 27 May 1958; translated to Connor 14 October 1969|
|1970||1985||John Duggan||Elected 27 November 1970; consecrated 2 February 1970; resigned 1985; died 20 July 2000|
|1986||1997||John Neill||Elected 6 January 1986; consecrated January 1986; translated to Cashel and Ossory 23 April 1997|
|1998||2011||Richard Henderson||Elected 21 November 1997;  consecrated 2 February 1998.  Resigned to return to parish ministry in the Church of England.  </March 25, 2012small>|
|2011||present||Patrick William Rooke||Elected by the House of Bishops 13 April 2011;  consecrated 9 September 2011. |
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The Archbishop of Tuam is an archbishop which takes its name after the town of Tuam in County Galway, Ireland. The title was used by the Church of Ireland until 1839, and is still in use by the Catholic Church.
John Robert Winder Neill was the Church of Ireland Archbishop of Dublin until the end of January 2011.
The Bishop of Killala is an episcopal title which takes its name after the village of Killala in County Mayo, Ireland. In the Roman Catholic Church it remains a separate title, but in the Church of Ireland it has been united with other bishoprics.
The Synod of Kells took place in 1152, under the presidency of Giovanni Cardinal Paparoni, and continued the process begun at the Synod of Ráth Breasail (1111) of reforming the Irish church. The sessions were divided between the abbeys of Kells and Mellifont, and in later times the synod has been called the Synod of Kells-Mellifont and the Synod of Mellifont-Kells.
The Archdiocese of Tuam is an ecclesiastical territory or archdiocese of the Catholic Church located in western Ireland. The archdiocese is led by the Archbishop of Tuam, who serves as pastor of the mother church, the Cathedral of the Assumption and Metropolitan of the Metropolitan Province of Tuam. According to tradition, the "Diocese of Tuam" was established in the 6th century by St. Jarlath. The ecclesiastical province, roughly co-extensive with the secular province of Connacht, was created in 1152 by the Synod of Kells.
The Roman Catholic Diocese of Achonry is a Roman Catholic diocese in the western part of Ireland. It is one of the five suffragan sees of the Archdiocese of Tuam. The diocese was often called the "bishopric of Luighne" in the Irish annals. It was not established at the Synod of Rathbreasail, but Máel Ruanaid Ua Ruadáin signed as "bishop of Luighne" at the Synod of Kells.
The Diocese of Killala is a Roman Catholic diocese in Connacht; the western province of Ireland. It is in the Metropolitan Province of Tuam and is subject to the Metropolitan Archdiocese of Tuam. The current bishop is Dr. John Fleming DD who was appointed on 7 April 2002.
The Bishop of Achonry is an episcopal title which takes its name after the village of Achonry in County Sligo, Ireland. In the Roman Catholic Church it remains as a separate title, but in the Church of Ireland it has been united with other bishoprics.
The Archbishopric of Tuam existed from the mid twelfth century until 1839, with its seat at Tuam.
The Diocese of Tuam, Killala and Achonry is a former diocese in the Church of Ireland located in Connacht; the western province of Ireland. It was in the ecclesiastical province of Armagh. Its geographical remit included County Mayo and part of counties Galway and Sligo. In 2022, the diocese was amalgamated into the Diocese of Tuam, Limerick and Killaloe.
The Bishop of Killala and Achonry was the Ordinary of the Church of Ireland diocese of Killala and Achonry in the Ecclesiastical Province of Tuam. The diocese comprised part of Counties Mayo and Sligo in Ireland.
The Dean of Tuam is a post held in the Diocese of Tuam, as head of the cathedral chapter from after the creation of the diocese at the Synod of Rathbreasail in 1111.
Richard Crosbie Aitken Henderson is a clergyman who has served with the Church of Ireland and the Church of England. Until 31 January 2011 he was Bishop of Tuam, Killala, and Achonry.
The Dean of Armagh in the Church of Ireland is the dean of the Anglican St Patrick's Cathedral, the cathedral of the Diocese of Armagh and the metropolitan cathedral of the Province of Armagh, located in the town of Armagh.
St Patrick's Cathedral, Killala is one of two cathedral churches in the Diocese of Tuam, Limerick and Killaloe of the Church of Ireland. It is situated on the Ballina to Ballycastle road in the small coastal village of Killala, County Mayo, Ireland, in the ecclesiastical province of Armagh.
Patrick William Rooke is the current Bishop of Tuam, Killala, and Achonry in the Church of Ireland. He has announced his intention to retire on 31 October 2021.
Kenneth Arthur Kearon is an Irish Anglican bishop. He was Bishop of Limerick and Killaloe in the Church of Ireland.
St. Crumnathy's Cathedral Achonry, is a former cathedral in the Republic of Ireland.
The Diocese of Tuam, Limerick and Killaloe is a diocese of the Church of Ireland that is located in the west of Ireland. The diocese was formed by a merger of the former Diocese of Tuam, Killala and Achonry and the former Diocese of Limerick and Killaloe in 2022, after the retirement of the separate dioceses' bishops and the appointment of Michael Burrows as bishop of the united diocese. It is in the ecclesiastical province of Dublin. It is one of the eleven Church of Ireland dioceses that cover the whole of Ireland. The largest diocese by area in the Church of Ireland, it covers all of counties Clare, Galway, Kerry, Limerick and Mayo, plus parts of counties Cork, Sligo, Roscommon, Offaly, Laois and Tipperary.