Archdiocese of Ottawa-Cornwall

Historical Details

• Diocese of Bytown
  • Latin Name: Bypolitana
  • Erected: 25 June 1847
  • Metropolitan: Archdiocese of Québec
  • Province: Ontario
  • Country: Canada

• Diocese of Ottawa
  • Latin Name: Ottaviensis
  • Name Changed: 14 June 1860
  • Metropolitan: Archdiocese of Québec
  • Province: Ontario
  • Country: Canada

• Archdiocese of Ottawa
  • Latin Name: Ottaviensis
  • Elevated: 8 June 1886
  • Metropolitan See
  • Province: Ontario
  • Country: Canada
  • Square Kilometers: 5,818 (2,247 Square Miles)
  • Conference Region: Ontario

Past and Present Ordinaries

• Joseph-Eugène-Bruno Guigues, O.M.I. † (9 Jul 1847 Appointed - 8 Feb 1874 Died)
• Joseph-Thomas Duhamel † (1 Sep 1874 Appointed - 5 Jun 1909 Died)
• Charles Hugh Gauthier † (6 Sep 1910 Appointed - 19 Jan 1922 Died)
• Joseph-Médard Émard † (2 Jun 1922 Appointed - 28 Mar 1927 Died)
• Joseph-Guillaume-Laurent Forbes † (29 Jan 1928 Appointed - 22 May 1940 Died)
• Alexandre Vachon † (22 May 1940 Succeeded - 30 Mar 1953 Died)
• Marie-Joseph Lemieux, O.P. † (20 Jun 1953 Appointed - 16 Sep 1966 Appointed, Titular Archbishop of Saldae)
• Joseph-Aurèle Plourde † (2 Jan 1967 Appointed - 27 Sep 1989 Retired)
• Marcel André Joseph Gervais † (27 Sep 1989 Succeeded - 14 May 2007 Retired)
• Terrence Thomas Prendergast, S.J. (14 May 2007 Appointed - 4 Dec 2020 Retired)
• Marcel Damphousse (4 Dec 2020 Succeeded - )

Historical Summary

Statistics

Year	Catholics	Total Population	Percent Catholic	Diocesan Priests	Religious Priests	Total Priests	Catholics Per Priest	Permanent Deacons	Male Religious	Female Religious	Parishes	Source
Archdiocese of Ottawa
1950	241,000	380,000	63.4%	273	416	689	349		1,118	1,942	132	ap1951
1966	210,455	360,000	58.5%	204	356	560	375		495	1,630	105	ap1967
1970	199,985	249,530	80.1%	196	470	666	300		680	1,634	98	ap1971
1976	261,545	516,945	50.6%	172	271	443	590	1	409	1,375	100	ap1977
1980	285,900	575,000	49.7%	166	254	420	680	9	393	1,252	100	ap1981
1990	350,000	677,000	51.7%	149	222	371	943	13	326	1,047	112	ap1991
1999	402,305	805,610	49.9%	162	179	341	1,179	40	233	886	113	ap2000
2000	402,305	805,610	49.9%	167	167	334	1,204	49	215	871	113	ap2001
2001	402,305	805,610	49.9%	172	175	347	1,159	47	217	859	113	ap2002
2002	402,305	812,305	49.5%	162	102	264	1,523	50	149	830	113	ap2003
2003	402,305	812,305	49.5%	170	102	272	1,479	51	142	848	113	ap2004
2004	392,635	812,305	48.3%	177	102	279	1,407	60	147	848	111	ap2005
2013	428,000	892,000	48.0%	115	167	282	1,517	86	183	582	107	ap2014
2016	441,798	922,014	47.9%	116	167	283	1,561	86	180	495	107	ap2017
2019	458,200	956,200	47.9%	116	103	219	2,092	91	115	445	107	ap2020
Archdiocese of Ottawa-Cornwall
2021	465,000	967,260	48.1%	144	106	250	1,860	108	113	425	128	ap2022
2023	472,000	981,800	48.1%	129	103	232	2,034	100	110	379	129	ap2024

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

Affiliated Bishops, Living

• José Avelino Bettencourt (Priest: 29 May 1993 to 26 Feb 2018)
• Vincent Cadieux, O.M.I.
• Frederick Joseph Colli (Auxiliary Bishop: 19 Dec 1994 to 2 Feb 1999)
• Gilles Côté, S.M.M.
• Marcel Damphousse (Coadjutor Archbishop: 6 May 2020; Archbishop: 4 Dec 2020)
• Guy Desrochers, C.Ss.R.
• Yvan Mathieu, S.M. (Auxiliary Bishop: 17 Mar 2022)
• John Michael Miller, C.S.B.
• Brendan Michael O’Brien (Priest: 1 Jun 1968; Auxiliary Bishop: 6 May 1987 to 5 May 1993)
• Jean-Louis Plouffe (Priest: 12 Jun 1965 to 12 Dec 1986)
• Terrence Thomas Prendergast, S.J. (Archbishop: 14 May 2007 to 4 Dec 2020)
• Christian Heribert Riesbeck, C.C. (Priest: 12 Oct 1996 to 2003; Auxiliary Bishop: 7 Jan 2014 to 15 Oct 2019)

  ---

Affiliated Bishops, Deceased

• René Audet † (Auxiliary Bishop: 21 May 1963 to 3 Jan 1968)
• John Michael Beahen † (Priest: 15 Jun 1946; Auxiliary Bishop: 5 May 1977 to 14 Mar 1988)
• Gilles Bélisle † (Priest: 2 Feb 1950; Auxiliary Bishop: 5 May 1977 to 19 Aug 1993)
• Henri Belleau, O.M.I. †
• François-Xavier Brunet † (Priest: 23 Sep 1893 to 6 Aug 1913)
• Joseph Charbonneau † (Priest: 24 Jun 1916 to 20 Jun 1939)
• Paul-Émile Charbonneau † (Auxiliary Bishop: 15 Nov 1960 to 21 May 1963)
• John Christopher Cody † (Priest: 26 May 1923 to 9 Dec 1936)
• Gérard-Joseph Deschamps, S.M.M. †
• Joseph-Delphis Des Rosiers, O.M.I. †
• Joseph-Thomas Duhamel † (Priest: 19 Dec 1863; Bishop: 1 Sep 1874; Archbishop: 8 Jun 1886 to 5 Jun 1909)
• Joseph-Médard Émard † (Archbishop: 2 Jun 1922 to 28 Mar 1927)
• Joseph-Guillaume-Laurent Forbes † (Archbishop: 29 Jan 1928 to 22 May 1940)
• Charles Hugh Gauthier † (Archbishop: 6 Sep 1910 to 19 Jan 1922)
• Robert-Marie Gay, M. Afr. †
• Marcel André Joseph Gervais † (Coadjutor Archbishop: 13 May 1989; Archbishop: 27 Sep 1989 to 14 May 2007)
• Jean Gratton † (Priest: 27 Apr 1952 to 10 May 1978)
• Lorenzo Rodolfo (Laurent-Rodolphe) Guibord Lévesque, O.F.M. †
• Joseph-Eugène-Bruno Guigues, O.M.I. † (Bishop: 9 Jul 1847 to 8 Feb 1874)
• Ubald Langlois, O.M.I. †
• Jules Leguerrier, O.M.I. †
• Marie-Joseph Lemieux, O.P. † (Archbishop: 20 Jun 1953 to 16 Sep 1966)
• Paul Marchand, S.M.M. † (Auxiliary Bishop: 31 May 1993 to 8 Mar 1999)
• John Thomas McNally † (Priest: 4 Apr 1896 to 4 Apr 1913)
• Cutbert Martin O’Gara, C.P. †
• Joseph-Aurèle Plourde † (Archbishop: 2 Jan 1967 to 27 Sep 1989)
• Maxime Tessier † (Auxiliary Bishop: 28 May 1951 to 22 Dec 1953)
• Alexandre Vachon † (Coadjutor Archbishop: 11 Dec 1939; Archbishop: 22 May 1940 to 30 Mar 1953)
• Joseph Raymond Windle † (Auxiliary Bishop: 15 Nov 1960 to 23 Jan 1969)

Source(s)

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