Roman Catholic Archdiocese of Ottawa–Cornwall

Archdiocese of Ottawa–Cornwall

Archidioecesis Ottaviensis–Cornubiensis

Archidiocèse d'Ottawa-Cornwall
Notre-Dame Cathedral Basilica in Ottawa
Logo of the diocese
Location
CountryCanada
TerritoryCity of Ottawa
United Counties of Prescott and Russell
Eastern portion of the United Counties of Stormont, Dundas and Glengarry
Two parishes in Lanark County
Ecclesiastical provinceOttawa–Cornwall
Headquarters1209 Michael St N, Ottawa, ON K1J 7T2
Coordinates45°25′21″N 75°37′55″W / 45.4225°N 75.6320°W / 45.4225; -75.6320
Statistics
Area7,108 km2 (2,744 sq mi)
Population
  • Total
  • Catholics
  • (as of 2023)
  • 981,800
  • 472,000 (47.9%)
Parishes129
Information
DenominationCatholic
Sui iuris churchLatin Church
RiteRoman Rite
EstablishedJune 8, 1886
CathedralNotre-Dame Cathedral Basilica
Patron saintSaint Joseph
Secular priests129
Current leadership
PopeLeo XIV
ArchbishopMarcel Damphousse
SuffragansHearst–Moosonee
Pembroke
Timmins
Auxiliary BishopsYvan Mathieu
Vicar GeneralLeo Villeneuve
Bishops emeritusTerrence Prendergast
Website
ottawacornwall.ca

The Archdiocese of Ottawa–Cornwall (Latin: Archidioecesis Ottaviensis–Cornubiensis, French: L'Archidiocèse d'Ottawa-Cornwall) is a Catholic archdiocese in the Province of Ontario. It is the metropolitan diocese of the ecclesiastical province of Ottawa–Cornwall which includes the suffragan dioceses of Hearst–Moosonee, Pembroke, and Timmins. As of 2023, the archdiocese had 129 parishes, 129 diocesan priests, 103 religious priests, and 472,000 Catholics. It also had 379 women religious, 110 religious brothers, and 100 permanent deacons.