Diocese of Killaloe

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Bishop(s) Fintan Monahan, Bishop William Walsh, Bishop Emeritus

General Information Type of Jurisdiction: Diocese Erected: 5th Century Metropolitan: Archdiocese of Cashel and Emly Rite: Latin (or Roman) Country: Ireland Square Kilometers: 4,523 (1,747 Square Miles) Description: Parts of Clare, Laois, Limerick, Offaly and Tipperary Official Web Site: http://www.killaloediocese.ie/ Mailing Address: Westbourne, Ennis V95 W63H, Co. Clare, Ireland Telephone: (065)682.86.38 Fax: 684.25.38

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Past and Present Ordinaries

• Cornelius O’Heney † ( 1212 Appointed - 1216 Died)
• Robert Travers † ( 1217 Appointed - 1218 Resigned)
• Donald O’Heney † ( 1221 Appointed - )
• Donald O’Kennedy † ( 1231 Appointed - 1252 Died)
• Isaac O’Cormacan † (21 Jun 1253 Appointed - )
• Matthew O’Hogain † (10 Nov 1267 Appointed - Aug 1281 Died)
• Maurice O’Hogain † (23 Nov 1281 Appointed - 1298 Died)
• David MacMathgmna (MacMahon) † ( 1299 Appointed - 1316 Died)
• Thomas O’Cormacain † (2 Jul 1317 Appointed - 31 Jul 1322 Died)
• Benedict O’Coscry † ( 1322 Appointed - 1325 Died)
• David MacBrien † (25 May 1326 Appointed - Dec 1342 Died)
• Thomas O’Hogan † ( 1343 Appointed - 30 Oct 1354 Died)
• Tomas Cormachain † (27 May 1355 Appointed - 1382 Died)
• Matthew MacGrath † ( 1389 Appointed - )
• Donat MacRaith † (20 May 1400 Appointed - )
• Robert de Mulfield, O. Cist. † (11 Sep 1409 Appointed - )
• Eugene O’Falan † (6 Jul 1418 Appointed - 1423 Resigned)
• Thady MacGrath † (25 Oct 1423 Appointed - )
• James O’Lonergan † (9 Dec 1429 Appointed - )
• Donato O’Brien † (26 Jul 1443 Appointed - )
• Thaddeus MacRaith † (17 Oct 1460 Confirmed - 1463 Died)
• Matthias O’Griffith † (23 May 1463 Appointed - Sep 1483 Died)
• Thierry O’Brien † (19 Sep 1483 Appointed - 1526 Died)
• James O’Curran † (24 Aug 1526 Appointed - 1542 Died)
• Florence Kirwan, O.F.M. † (5 Dec 1539 Appointed - 1542 Resigned)
• Terence O’Brien † (5 May 1542 Appointed - 1570 Died)
• Malachy O’Moloney † (10 Jan 1571 Appointed - 22 Aug 1576 Appointed, Bishop of Kilmacduagh)
• Cornelius Ryan (O’Mulrian), O.F.M. Obs. † (22 Aug 1576 Appointed - 1616 Died)
• John O’Mollony † (12 Aug 1630 Appointed - Oct 1651 Died)
• Denis Harty † (17 Apr 1657 Appointed - 1667 Died)
• John O’Mollony † (26 May 1671 Confirmed - 24 Jan 1689 Appointed, Bishop of Limerick)
• Eustace Browne † (16 Jul 1712 Appointed - 24 Nov 1724 Died)
• Terence MacMahon (McMahon) † (16 Dec 1724 Confirmed - 1728 Died)
• Sylvester Louis Lloyd, O.F.M. † (25 Sep 1728 Confirmed - 29 May 1739 Confirmed, Bishop of Waterford and Lismore)
• Patrick MacDonagh † (14 Aug 1739 Confirmed - 7 Mar 1752 Died)
• Patrick O’Nachten (Naghten) † (12 May 1752 Confirmed - Oct 1752 Resigned)
• Nicholas Madgett † (11 Dec 1752 Confirmed - 23 Feb 1753 Confirmed, Bishop of Kerry (o Ardfert) e Aghadoe)
• William O’Meara † (23 Feb 1753 Confirmed - 23 Mar 1765 Died)
• Michael Peter MacMahon (McMahon), O.P. † (5 Jun 1765 Confirmed - 20 Feb 1807 Died)
• James O’Shaughnessy † (20 Feb 1807 Succeeded - 5 Aug 1829 Died)
• Patrick MacMahon (McMahon) † (5 Aug 1829 Succeeded - 7 Jun 1836 Died)
• Patrick Kennedy † (7 Jun 1836 Succeeded - 19 Nov 1850 Died)
• Daniel Vaughan † (11 Apr 1851 Appointed - 29 Jul 1859 Died)
• Michael Flannery † (29 Jul 1859 Succeeded - 19 Jun 1891 Died)
• Thomas J. McRedmond † (19 Jun 1891 Succeeded - 5 Apr 1904 Died)
• Michael Fogarty † (8 Jul 1904 Appointed - 25 Oct 1955 Died)
• Joseph Rodgers † (25 Oct 1955 Succeeded - 10 Jul 1966 Died)
• Michael Anthony Harty † (28 Sep 1967 Appointed - 8 Aug 1994 Died)
• William Walsh (8 Aug 1994 Succeeded - 18 May 2010 Retired)
• Kieran O’Reilly, S.M.A. (18 May 2010 Appointed - 22 Nov 2014 Appointed, Archbishop of Cashel (-Emly))
• Fintan Monahan (29 Jul 2016 Appointed - )

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Historical Summary

Date	Event	From	To
5th Century	Erected		Diocese of Killaloe (erected)
1195	Territory Added	Diocese of Roscrea (Ros Cré) (suppressed)	Diocese of Killaloe

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Statistics

Year	Catholics	Total Population	Percent Catholic	Diocesan Priests	Religious Priests	Total Priests	Catholics Per Priest	Permanent Deacons	Male Religious	Female Religious	Parishes	Source
1950	107,000	116,000	92.2%	161	42	203	527		80	295	57	ap1951
1970	98,184	101,006	97.2%	160	45	205	478		94	500	58	ap1971
1980	109,782	112,394	97.7%	160	40	200	548		98	473	58	ap1981
1990	112,222	115,305	97.3%	156	35	191	587		83	339	59	ap1991
1999	109,306	115,061	95.0%	138	26	164	666		53	250	58	ap2000
2000	109,458	113,804	96.2%	138	27	165	663		53	245	58	ap2001
2001	109,521	114,215	95.9%	132	27	159	688		51	235	58	ap2002
2002	110,170	120,878	91.1%	128	26	154	715		48	228	58	ap2003
2003	110,670	120,878	91.6%	124	25	149	742		45	220	58	ap2004
2004	113,067	120,878	93.5%	123	24	147	769		44	210	58	ap2005
2006	113,774	121,374	93.7%	119	23	142	801		42	189	58	ap2007
2013	117,972	127,792	92.3%	108	24	132	893		51	172	58	ap2014
2016	119,313	129,436	92.2%	95	12	107	1,115		36	160	58	ap2017
2019	113,300	125,437	90.3%	91	17	108	1,049		38	141	58	ap2020
2021	101,837	126,896	80.3%	84		84	1,212		17	134	58	ap2022

Note: Any changes in boundaries over time are not indicated in the above table.

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Affiliated Bishops, Living

• Séamus Patrick Horgan (Priest: 11 Jun 1994 to 14 May 2024)
• Fintan Monahan (Bishop: 29 Jul 2016 - )
• Gerard Nash (Priest: 15 Jun 1991 to 11 Jun 2021)
• Eugene Martin Nugent (Priest: 9 Jul 1983 to 13 Feb 2010)
• Kieran O’Reilly, S.M.A. (Bishop: 18 May 2010 to 22 Nov 2014)
• William Walsh (Priest: 21 Feb 1959; Coadjutor Bishop: 21 Jun 1994; Bishop: 8 Aug 1994 to 18 May 2010)

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Affiliated Bishops, Deceased

• Patrick Joseph Barry †
• Thomas Joseph Brosnahan, C.S.Sp. †
• Eustace Browne † (Bishop: 16 Jul 1712 to 24 Nov 1724)
• John Burke †
• Patrick Cleary, S.S.C.M.E. †
• Tomas Cormachain † (Bishop: 27 May 1355 to 1382)
• Patrice-François-Marie Cruice †
• Michael Flannery † (Coadjutor Bishop: 6 Jul 1858; Bishop: 29 Jul 1859 to 19 Jun 1891)
• Michael Fogarty † (Priest: 13 Sep 1885; Bishop: 8 Jul 1904; Archbishop (Personal Title): 12 Jul 1954 to 25 Oct 1955)
• Matthew Gibney †
• Denis Harty † (Vicar Apostolic: 17 Apr 1657 to 1667)
• Michael Anthony Harty † (Priest: 23 Jun 1946; Bishop: 28 Sep 1967 to 8 Aug 1994)
• Denis Kelly † (Priest: Mar 1877 to 29 Mar 1897)
• Patrick Kennedy † (Coadjutor Bishop: 23 Jun 1835; Bishop: 7 Jun 1836 to 19 Nov 1850)
• Florence Kirwan, O.F.M. † (Bishop: 5 Dec 1539 to 1542)
• Sylvester Louis Lloyd, O.F.M. † (Bishop: 25 Sep 1728 to 29 May 1739)
• David MacBrien † (Bishop: 25 May 1326 to Dec 1342)
• Patrick MacDonagh † (Bishop: 14 Aug 1739 to 7 Mar 1752)
• Matthew MacGrath † (Bishop: 1389)
• Thady MacGrath † (Bishop: 25 Oct 1423)
• Michael Peter MacMahon (McMahon), O.P. † (Bishop: 5 Jun 1765 to 20 Feb 1807)
• Patrick MacMahon (McMahon) † (Coadjutor Bishop: 27 Aug 1819; Bishop: 5 Aug 1829 to 7 Jun 1836)
• Terence MacMahon (McMahon) † (Bishop: 16 Dec 1724 to 1728)
• David MacMathgmna (MacMahon) † (Bishop: 1299 to 1316)
• Donat MacRaith † (Bishop: 20 May 1400)
• Thaddeus MacRaith † (Bishop: 17 Oct 1460 to 1463)
• Nicholas Madgett † (Bishop: 11 Dec 1752 to 23 Feb 1753)
• James McGolrick †
• Thomas J. McRedmond † (Priest: 1860; Coadjutor Bishop: 14 Dec 1889; Bishop: 19 Jun 1891 to 5 Apr 1904)
• Michael Joseph Moloney, C.S.Sp. †
• Robert de Mulfield, O. Cist. † (Bishop: 11 Sep 1409)
• Donato O’Brien † (Bishop: 26 Jul 1443)
• Terence O’Brien † (Bishop: 5 May 1542 to 1570)
• Thierry O’Brien † (Bishop: 19 Sep 1483 to 1526)
• Anthony Joseph O’Connell †
• Thomas O’Cormacain † (Bishop: 2 Jul 1317 to 31 Jul 1322)
• Isaac O’Cormacan † (Bishop: 21 Jun 1253 - )
• Benedict O’Coscry † (Bishop: 1322 to 1325)
• James O’Curran † (Bishop: 24 Aug 1526 to 1542)
• Senan Louis O’Donnell, O.S.A. †
• Eugene O’Falan † (Bishop: 6 Jul 1418 to 1423)
• James Michael Myles O’Gorman, O.C.S.O. †
• Matthias O’Griffith † (Bishop: 23 May 1463 to Sep 1483)
• Cornelius O’Heney † (Bishop: 1212 to 1216)
• Donald O’Heney † (Bishop: 1221 - )
• Matthew O’Hogain † (Bishop: 10 Nov 1267 to Aug 1281)
• Maurice O’Hogain † (Bishop: 23 Nov 1281 to 1298)
• Thomas O’Hogan † (Bishop: 1343 to 30 Oct 1354)
• Donald O’Kennedy † (Bishop: 1231 to 1252)
• James O’Lonergan † (Bishop: 9 Dec 1429)
• William O’Meara † (Bishop: 23 Feb 1753 to 23 Mar 1765)
• John O’Mollony † (Bishop: 26 May 1671 to 24 Jan 1689)
• John O’Mollony † (Bishop: 12 Aug 1630 to Oct 1651)
• Malachy O’Moloney † (Bishop: 10 Jan 1571 to 22 Aug 1576)
• Patrick O’Nachten (Naghten) † (Bishop: 12 May 1752 to Oct 1752)
• James O’Shaughnessy † (Coadjutor Bishop: 24 Sep 1798; Bishop: 20 Feb 1807 to 5 Aug 1829)
• Nicholas Power † (Coadjutor Bishop: 30 Apr 1865 to 21 Mar 1871)
• William J. Quarter †
• John Joseph Rafferty †
• Joseph Rodgers † (Priest: 19 Jun 1927; Coadjutor Bishop: 10 Jan 1948; Bishop: 25 Oct 1955 to 10 Jul 1966)
• Cornelius Ryan (O’Mulrian), O.F.M. Obs. † (Bishop: 22 Aug 1576 to 1616)
• James Ryan † (Priest: 1830; Coadjutor Bishop: 21 Nov 1871 to 20 Jul 1889)
• Timothy Clement Smyth, O.C.S.O. †
• Robert Travers † (Bishop: 1217 to 1218)
• Daniel Vaughan † (Bishop: 11 Apr 1851 to 29 Jul 1859)

Source(s)

Hierarchia Catholica, Volume 1, Page 293 Hierarchia Catholica, Volume 2, Page 172 Hierarchia Catholica, Volume 3, Page 219 Hierarchia Catholica, Volume 4, Page 215 Hierarchia Catholica, Volume 5, Page 236 Hierarchia Catholica, Volume 6, Page 252 Series Episcoporum Ecclesiae Catholicae, Volume 1, Page 224, to Page 225

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