Chronology of Catholic Dioceses: Canada
See a list of abbreviations used in this list. See also our listing of current ecclesial jurisdictions.
- 0100-0200
- Rouen - France
- Regarding Victoria in Vancouver Island:
- 1622
- England (AV, establised by the "Propaganda Fide" in Rome) - England
- 1688
- London District of England (AV, new name, previously England AV) - England
- 1784
- United States of America (AP, detached from London District of England AV) - USA
- 1789
- Baltimore (D, and new name, previously United States of America AP) - USA
- 1843
- Oregon (AV, established from Baltimore and Québec) - USA
- 1658
- New France (AV, detached from Rouen) - Canada
- 1674
- Québec (D, and new name, previously New France) - Canada
- 1784
- Newfoundland (AP, de facto detached from Québec, formally from England - Vicariate of London AV) - Canada
- 1795
- Saint John's, Newfoundland (AV, detached from Newfoundland AP) - Canada
- 1817
- Nova Scotia (AV, detached from Québec) - Canada
- 1819
- Upper Canada (AV, detached from Québec) - Canada
- 1819
- Québec (AD) - Canada
- 1826
- Kingston (D, and new name, previously Upper Canada) - Canada
- 1829
- Charlottetown (detached from Québec) - Canada
- 1836
- Montréal (detached from Québec) - Canada
- 1841
- Toronto (detached from Kingston) - Canada
- 1842
- Halifax (D, and new name, previously Nova Scotia AV) - Canada
- 1842
- Saint John in America (detached from Québec) - Canada
- 1843
- Victoria in Vancouver Island (AV, detached from Oregon AV) - Canada
- 1846
- Victoria in Vancouver Island - Canada
- 1844
- Arichat (detached from Halifax) - Canada
- 1844
- Nord-Ouest (AV, detached from Quebec) - Canada
- 1844
- Québec (Metr.) - Canada
- 1846
- Victoria in Vancouver Island - Canada
- 1847
- Bytown (detached from Kingston) - Canada
- 1847
- Nord-Ouest - Canada
- 1847
- Saint John's, Newfoundland - Canada
- 1851
- Saint Boniface (new name, previously Nord-Ouest) - Canada
- 1852
- Halifax (Metr., was part of the Metropolitan Province of Québec) - Canada
- 1852
- Saint-Hyacinthe (detached from Montreal, and from Québec) - Canada
- 1852
- Trois-Rivières (detached from Québec) - Canada
- 1856
- Hamilton (detached from Toronto) - Canada
- 1856
- Harbour Grace (D, and new name, previously Newfoundland AP) - Canada
- 1856
- London (detached from Toronto) - Canada
- 1858
- Harbour Grace-Grand Falls (new name, previously Harbour Grace) - Canada
- 1859
- Sandwich (new name, previously London) - Canada
- 1860
- Chatham (detached from Saint John in America) - Canada
- 1860
- Ottawa (new name, previously Bytown) - Canada
- 1862
- Athabaska Mackenzie (AV, detached from Saint-Boniface) - Canada
- 1863
- British Columbia (AV, detached from Victoria in Vancouver Island) - Canada
- 1867
- Rimouski / Saint-Germain de Rimouski (detached from Québec) - Canada
- 1869
- London (new name, previously Sandwich) - Canada
- 1870
- Toronto (Metr., was part of the Metropolitan Province of Québec) - Canada
- 1871
- Saint Albert (detached from Saint-Boniface) - Canada
- 1871
- Saint-Boniface (Metr.) - Canada
- 1871
- Western Newfoundland (AP, detached from Saint John's, Newfoundland) - Canada
- 1882
- Northern Canada (AV, detached from Kingston) - Canada
- 1874
- Sherbrooke (detached from Trois-Rivieres, from Saint-Hyacinthe, and from Québec) - Canada
- 1878
- Chicoutimi (detached from Québec) - Canada
- 1882
- Golfe Saint-Laurent (AP, detached from Rimouski) - Canada
- 1882
- Peterborough (D, and new name, previously Northern Canada AV) - Canada
- 1882
- Pontiac (VA, detached from Ottawa, and from Trois-Rivieres) - Canada
- 1885
- Nicolet (detached from Trois-Rivieres) - Canada
- 1886
- Antigonish (new name, previously Arichat) - Canada
- 1886
- Montréal (Metr., was part of the Metropolitan Province of Québec) - Canada
- 1886
- Ottawa (Metr.) - Canada
- 1889
- Kingston (Metr.) - Canada
- 1890
- Alexandria in Ontario (detached from Kingston) - Canada
- 1890
- New Westminster (D, and new name, previously British Columbia AV) - Canada
- 1891
- Saskatchewan (AV, detached from Saint-Boniface) - Canada
- 1892
- Valleyfield (detached from Montréal) - Canada
- 1892
- Western Newfoundland (AV) - Canada
- 1898
- Pembroke (D, and new name, previously Pontiac VA) - Canada
- 1901
- Athabaska (AV, new name, previously Athabaska-Mackenzie AV) - Canada
- 1901
- Mackenzie (AV, detached from Athabaska-Mackenzie AV) - Canada
- 1903
- Victoria / Victoria in Vancouver Island (AD) - Canada
- 1904
- Saint John's, Newfoundland (Metr.) - Canada
- 1904
- Joliette (detached from Montreal) - Canada
- 1904
- Saint George's (D, and new name, previously Western Newfoundland AV) - Canada
- 1904
- Sault Sainte Marie (detached from Peterborough) - Canada
- 1905
- Golfe Saint-Laurent (AV) - Canada
- 1907
- Prince-Albert et Saskatoon (D, and new name, formerly Saskatchewan AV) - Canada
- 1908
- Vancouver (Metr. and new name, previously New Westminster D) - Canada
- 1908
- Victoria / Victoria in Vancouver Island (D) - Canada
- 1908
- Temiskamingue (AV, detached from Pembroke) - Canada
- 1908
- Yukon and Prince Rupert (AP, detached from Mackenzie) - Canada
- 1910
- Keewatin (AV) - Canada
- 1910
- Regina (detached from Saint Boniface) - Canada
- 1912
- Edmonton (Metr., and new name, previously Saint Albert D) - Canada
- 1912
- Calgary (detached from Saint Albert) - Canada
- 1912
- Canada [Ukr.] (Ord.) - Canada
- 1913
- Mont-Laurier (detached from Ottawa) - Canada
- 1915
- Haileybury (D, and new name, previously Temiskamingue AV) - Canada
- 1915
- Regina (Metr.) - Canada
- 1915
- Winnipeg (AD) - Canada
- 1915
- Northern Ontario (AP, detached from Haileybury) - Canada
- 1920
- Northern Ontario (AV) - Canada
- 1921
- Saint Peter-Muenster (Abb., detached from Prince Albert) - Canada
- 1922
- Gaspé (detached from Rimouski) - Canada
- 1924
- Saint John, New Brunswick (new name, previously Saint John in America) - Canada
- 1925
- Baie d'Hudson (AP, detached from Keewatin AV) - Canada
- 1927
- Grouard (AV, new name, previously Mackenzie AV) - Canada
- 1930
- Gravelbourg (detached from Regina) - Canada
- 1931
- Baie d'Hudson (AV) - Canada
- 1933
- Prince-Albert (new name, previously Prince-Albert et Saskatoon) - Canada
- 1933
- Saint-Jean-de-Québec (detached from Montréal) - Canada
- 1933
- Saskatoon (detached from Prince-Albert) - Canada
- 1936
- Moncton (Metr., detached from Chatham, and from Saint John, New Brunswick - both dioceses then belonging to the Metropolitan Province of Halifax) - Canada
- 1936
- Nelson (detached from Vancouver) - Canada
- 1938
- Amos (detached from Haileybury) - Canada
- 1938
- Baie James (AV, detached from Haileybury, and from Northern Ontario AP) - Canada
- 1938
- Bathurst in Canada (new name, previously Chatham) - Canada
- 1938
- Hearst (D, and new name, previously Northern Ontario AV) - Canada
- 1938
- Timmins (new name, previously Haileybury) - Canada
- 1944
- Edmundston (detached from Bathurst in Canada) - Canada
- 1944
- Prince Rupert (AV, detached from Yukon and Prince Rupert AV) - Canada
- 1944
- Whitehorse (AV, new name, previously Yukon and Prince Rupert AV) - Canada
- 1945
- Golfe St-Laurent (now also given territory from Chicoutimi) - Canada
- 1945
- Kamloops (detached from Vancouver) - Canada
- 1945
- Labrador (AV, detached from Baie d'Hudson, from Golfe Saint-Laurent, and from Le Havre) - Canada
- 1946
- Rimouski (Metr., was part of the Metropolitan Province of Québec) - Canada
- 1948
- Central Canada [Ukr.] (ApEx, and new name, previously Canada - Ord.) - Canada
- 1948
- Western Canada [Ukr.] (ApEx) - Canada
- 1948
- Eastern Canada [Ukr.] (ApEx) - Canada
- 1948
- Saint Paul in Alberta (detached from Edmonton) - Canada
- 1951
- Canada (Mil.Ord.) - Canada
- 1951
- Edmonton [Ukr.] (ApEx, new name, previously Western Canada, ApEx) - Canada
- 1951
- Manitoba [Ukr.] (new name, previously Central Canada ApEx) - Canada
- 1951
- Saint-Jérôme (detached from Montréal, and from Ottawa, and from Mont-Laurier) - Canada
- 1951
- Sainte-Anne-de-la-Pocatière (detached from Québec) - Canada
- 1951
- Saskatchewan [Ukr.] (ApEx, detached from Central Canada [Ukr.]) - Canada
- 1951
- Sherbrooke (Metr.) - Canada
- 1951
- Toronto [Ukr.] (ApEx, new name, previously Eastern Canada -ApEx) - Canada
- 1952
- Fort William (detached from Saint Boniface, and from Sault Sainte Marie) - Canada
- 1953
- Yarmouth (detached from Halifax) - Canada
- 1956
- Edmonton [Ukr.] - Canada
- 1956
- Saskatoon [Ukr.] (Ep., and new name, previously Saskatchewan) - Canada
- 1956
- Toronto [Ukr.] - Canada
- 1956
- Winnipeg [Ukr.] (AD and new name, previously Manitoba ApEx) - Canada
- 1958
- Saint Catharines (detached from Toronto, and from Hamilton) - Canada
- 1960
- Hauterive (new name, previously Golfe St-Laurent) - Canada
- 1963
- Hull (detached from Ottawa) - Canada
- 1964
- Grand Falls (new name, previously Harbour Grace-Grand Falls) - Canada
- 1967
- Churchill (D, and new name, previously Baie d'Hudson AV) - Canada
- 1967
- Grouard-McLennan (Metr. and new name, previously Grouard AV) - Canada
- 1967
- Keewatin-Le Pas (Metr., and new name, previously Keewatin AV) - Canada
- 1967
- Labrador-Schefferville (D, and new name, previously Labrador AV) - Canada
- 1967
- Mackenzie-Fort Smith (D, and new name, previously Mackenzie AV) - Canada
- 1967
- Moosonee (D, and new name, previously Baie James AV) - Canada
- 1967
- Prince George (new name, previously Prince Rupert AV) - Canada
- 1967
- Whitehorse - Canada
- 1968
- Churchill - Baie d'Hudson (new name, previously Churchill) - Canada
- 1970
- Thunder Bay (new name, previously Fort William) - Canada
- 1973
- Rouyn-Noranda (detached from Timmins) - Canada
- 1974
- New Westminster [Ukr.] (detached from Edmonton) - Canada
- 1976
- Alexandria-Cornwall (new name, previously Alexandria in Ontario) - Canada
- 1980
- Canada [Gr.-Melk.] (ApEx) - Canada
- 1980
- Saints Cyril and Methodius of Toronto [Slov.-Byz.] - Canada
- 1981
- United States and Canada [Arm.] (ApEx) - USA
- 1982
- Gatineau-Hull (new name, previously Hull) - Canada
- 1982
- Saint-Jean - Longueuil (new name, previously Saint-Jean-de-Québec) - Canada
- 1982
- Saint-Maron de Montréal [Mar.] - Canada
- 1984
- Saint-Saveur de Montréal [Gr.-Melk.] (D and new name, previously Canada ApEx) - Canada
- 1986
- Baie-Comeau (new name, previously Hauterive) - Canada
- 1987
- Labrador City-Schefferville (new name, previously Labrador-Schefferville) - Canada
- 1990
- Gatineau-Hull (Metr., was part of the Metropolitan Province of Ottawa) - Canada
- 1998
- Gravelbourg (suppressed, territories joined to Regina and to Saskatoon) - Canada
- 1998
- Saint Peter-Muenster (suppressed, territory joined to Saskatoon) - Canada
- 2005
- Gatineau (new name, previously Gatineau-Hull) - Canada
- 2007
- Saint George's (suppressed, territory joined to Corner Brook and Labrador) - Canada
- 2007
- Labrador City-Schefferville (suppressed, territory joined to Corner Brook and Labrador, to Amos, and to Baie-Comeau) - Canada
- 2007
- Corner Brook and Labrador (territory from previous jurisdictions of Saint George's, and from Labrador City-Schefferville) - Canada
- 2015
- Apostolic Exarchate for the Syro-Malabars - Canada
- 2018
- Hearst-Moosonee (united) - Canada
- 2018
- Mississauga [Syr.-Malab.] (Ep., and new name, previously Apostolic Exarchate for the Syro-Malabars - Canada
- 2020
- Alexandria-Cornwall (suppressed, territory merged into Ottawa-Cornwall) - Canada
- 2020
- Ottawa-Cornwall (Metr.: new name, as is merged with Alexandria-Cornwall) - Canada