Diocese of

Peterborough

Canada

Continent: North America

Rite: Roman (Latin)

Type: Diocese Diocese

Name: Peterborough / Peterboroughen(sis) (Latin)

Ecclesiastical Province: Kingston

Neighbouring Dioceses: Toronto (↙), Sault Sainte Marie (↖), Pembroke (↗), Kingston (→)

Depends on: Dicastery for Bishops

Websites:

Celebrations

Patron Saint: Saint Peter (June 29), Saint Patrick (March 17)

Cathedral Dedication Anniversary: September 21 (1825)

Liturgical Calendar 📅

History

1874.01.25: Established as Apostolic Vicariate of Northern Canada (from Diocese of Kingston and became suffragan of Toronto)
1882.07.11: Promoted as Diocese of Peterborough / Peterboroughen(sis) (Latin) (gained territory from Metropolitan Archdiocese of Toronto and Diocese of Kingston)
1889.12.28: Became suffragan of Kingston
1904.09.16: Lost territory to establish Diocese of Sault Sainte Marie

Contact Info

Address: 350 Hunter St. West, P.O. Box 175, Peterborough, ON K9J 6Y8, Canada

Phone: +1 (705) 745-5123

Present Prelates

Bishop:	vacant
Apostolic Administrator (2026.07.02 – ...):	Bishop Daniel Joseph Miehm (65) Bishop of London (Canada)

Monsignors (9)

Ordinaries

Bishops of Peterborough (Roman Rite)

Bishop Daniel Joseph Miehm (65)
(Apostolic Administrator 2026.07.02 – ...)

Bishop Daniel Joseph Miehm (65)
(2017.03.10 – 2026.04.21)

Bishop of London (Canada)
Apostolic Administrator of Peterborough (Canada)

Fides per caritatem

Born:	1960.08.27 (Kitchener, ON, Canada)
Ordained Priest:	1989.05.06
Consecrated Bishop:	2013.05.07

Priest of Hamilton (Canada) (1989.05.06 – 2013.02.20)

Titular Bishop of Gor (2013.02.20 – 2017.03.10)

Auxiliary Bishop of Hamilton (Canada) (2013.02.20 – 2017.03.10)

Bishop of Peterborough (Canada) (2017.03.10 – 2026.04.21)

Bishop of London (Canada) (2026.04.21 – ...)

Apostolic Administrator of Peterborough (Canada) (2026.07.02 – ...)

Bishop William Terrence McGrattan (69)
(2014.04.08 – 2017.01.04)

Bishop of Calgary (Canada)

Habe fiduciam in Domino

Born:	1956.09.19 (London, ON, Canada)
Ordained Priest:	1987.05.02
Consecrated Bishop:	2010.01.12

Priest of London (Canada) (1987.05.02 – 2009.11.06)

Titular Bishop of Furnos minor (2009.11.06 – 2014.04.08)

Auxiliary Bishop of Toronto (Canada) (2009.11.06 – 2014.04.08)

Bishop of Peterborough (Canada) (2014.04.08 – 2017.01.04)

Bishop of Calgary (Canada) (2017.01.04 – ...)

Vice-President of Canadian Conference of Catholic Bishops (2021.09.27 – 2023.09.28)

President of Canadian Conference of Catholic Bishops (2023.09.28 – 2025.09.26)

Bishop Nicola De Angelis, C.F.I.C.
(2002.12.28 – 2014.04.08)

Unum estis in Christo

Born:	1939.01.23 (Pozzaglia Sabino, Italy)
Ordained Priest:	1970.12.06
Consecrated Bishop:	1992.06.24
Died:	2023.06.16 (Montefiascone, Italy † 84)

Superior General of Congregation of the Sons of the Immaculate Conception (1986 – 1992.04.27)

Titular Bishop of Remesiana (1992.04.27 – 2002.12.28)

Auxiliary Bishop of Toronto (Canada) (1992.04.27 – 2002.12.28)

Bishop of Peterborough (Canada) (2002.12.28 – 2014.04.08)

Bishop James Leonard Doyle
(1976.05.24 – 2002.12.28)

Sicut qui ministrat

Born:	1929.06.20 (Chatham, NB, Canada)
Ordained Priest:	1954.06.12
Consecrated Bishop:	1976.06.28
Died:	2004.04.22 (Ottawa, ON, Canada † 74)

Priest of London (Canada) (1954.06.12 – 1976.05.24)

Bishop of Peterborough (Canada) (1976.05.24 – 2002.12.28)

Bishop Francis Anthony Marrocco
(1968.06.10 – 1975.07.18)

Born:	1913.06.20 (Peterborough, ON, Canada)
Ordained Priest:	1938.06.12
Consecrated Bishop:	1956.02.22
Died:	1975.07.18 († 62)

Priest of Peterborough (Canada) (1938.06.12 – 1955.12.01)

Titular Bishop of Limnæ (1955.12.01 – 1968.06.10)

Auxiliary Bishop of Toronto (Canada) (1955.12.01 – 1968.06.10)

Bishop of Peterborough (Canada) (1968.06.10 – 1975.07.18)

Bishop Benjamin Ibberson Webster
(1954.04.24 – 1968.03.12)

Sufficientia ex Deo

Born:	1898.03.07 (Spofforth, England)
Ordained Priest:	1923.05.26
Consecrated Bishop:	1946.11.21
Died:	1981.01.18 († 82)

Priest of Toronto (Canada) (1923.05.26 – 1946.09.24)

Titular Bishop of Paphus (1946.09.24 – 1954.04.24)

Auxiliary Bishop of Toronto (Canada) (1946.09.24 – 1954.04.24)

Bishop of Peterborough (Canada) (1954.04.24 – 1968.03.12)

Titular Bishop of Tigamibena (1968.03.12 – 1981.01.18)

Bishop Joseph Gerald Berry (later Archbishop)
(1945.04.07 – 1953.11.28)

in vinculo caritatis

Born:	1902.06.07 (Montréal, QC, Canada)
Ordained Priest:	1927.06.11
Consecrated Bishop:	1945.06.07
Died:	1967.05.12 (Halifax, NS, Canada † 64)

Priest of Montréal (Canada) (1927.06.11 – 1945.04.07)

Bishop of Peterborough (Canada) (1945.04.07 – 1953.11.28)

Metropolitan Archbishop of Halifax (Canada) (1953.11.28 – 1967.05.12)

President of Canadian Conference of Catholic Bishops (1960 – 1964)

Bishop John Roderick MacDonald
(1943.06.05 – 1945.04.07)

In fraternitatis amore

Born:	1891.07.09 (Port-Hood, NS, Canada)
Ordained Priest:	1916.01.23
Consecrated Bishop:	1943.08.24
Died:	1959.12.18 (Antigonish, NS, Canada † 68)

Priest of Antigonish (Canada) (1916.01.23 – 1943.06.05)

Bishop of Peterborough (Canada) (1943.06.05 – 1945.04.07)

Titular Bishop of Ancusa (1945.04.14 – 1950.04.13)

Coadjutor Bishop of Antigonish (Canada) (1945.04.14 – 1950.04.13)

Bishop of Antigonish (Canada) (1950.04.13 – 1959.12.18)

Bishop Dennis P. O’Connor
(1930.01.30 – 1942.08.30)

In fide et lenitate

Born:	1884.12.23 (Blyth, ON, Canada)
Ordained Priest:	1909.06.05
Consecrated Bishop:	1930.06.11
Died:	1942.08.30 († 57)

Bishop of Peterborough (Canada) (1930.01.30 – 1942.08.30)

Bishop Richard Michael Joseph O’Brien (later Archbishop)
(1913.06.20 – 1929.05.17)

Ad Jesum per Mariam

Born:	1874.07.29 (Peterborough, ON, Canada)
Ordained Priest:	1897.07.06
Consecrated Bishop:	1913.09.24
Died:	1943.08.30 († 69)

Priest of Peterborough (Canada) (1897.07.06 – 1913.06.20)

Bishop of Peterborough (Canada) (1913.06.20 – 1929.05.17)

Titular Archbishop of Amorium (1929.05.17 – 1938.02.23)

Coadjutor Archbishop of Kingston (Canada) (1929.05.17 – 1938.02.23)

Metropolitan Archbishop of Kingston (Canada) (1938.02.23 – 1943.08.30)

Bishop Richard Alphonsus O’Connor
(1889.01.11 – 1913.01.23)

Crescamus in illo per omnia

Born:	1838.01.13 (Listowell, Ireland)
Ordained Priest:	1861.08.02
Consecrated Bishop:	1889.05.01
Died:	1913.01.23 († 75)

Priest of Montréal (Canada) (1861.08.02 – 1889.01.11)

Bishop of Peterborough (Canada) (1889.01.11 – 1913.01.23)

Bishop Thomas Joseph Dowling
(1886.12.14 – 1889.01.11)

Born:	1840.02.28 (Shanagolden, Ireland)
Ordained Priest:	1864.08.07
Consecrated Bishop:	1887.05.01
Died:	1924.08.06 (Hamilton, ON, Canada † 84)

Priest of Hamilton (Canada) (1864.08.07 – 1886.12.14)

Bishop of Peterborough (Canada) (1886.12.14 – 1889.01.11)

Bishop of Hamilton (Canada) (1889.01.11 – 1924.08.06)

Bishop Jean-François Jamot
(1882.07.11 – 1886.05.04)

Vitæ æternæ verba habes

Born:	1828.06.23 (Châtelard, France)
Ordained Priest:	1853.10.09
Consecrated Bishop:	1874.02.24
Died:	1886.05.04 (Peterborough, ON, Canada † 57)

Titular Bishop of Sarepta (1874.02.03 – 1882.07.11)

Vicar Apostolic of Northern Canada (Canada) (1874.02.03 – 1882.07.11)

Bishop of Peterborough (Canada) (1882.07.11 – 1886.05.04)

Vicars Apostolic of Northern Canada (Roman Rite)

Bishop Jean-François Jamot
(1874.02.03 – 1882.07.11)

(see above)

Special Churches

Cathedral: Cathedral of St. Peter in Chains, Peterborough, Ontario
Jubilee Churches in the Extraordinary Jubilee of Mercy (2016)
Jubilee Churches in the Holy Year 2025

Churches by City (63)

Toronto (↙), Sault Sainte Marie (↖), Pembroke (↗), Kingston (→)

Statistics (2022.12.31)

Area: 25,900 km²

Population: 77,500 Catholics (17.6% of 440,300 total)

Pastoral Centres: 40 parishes, 1 mission

Personnel: 74 priests (61 diocesan, 13 religious), 18 deacons, 76 religious (14 brothers, 62 sisters), 2 seminarians

Pastoral Centres

Last updated on 2026.08.23

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