Catholicism Dioceses

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Oceania
- Diocese of Sandhurst
- Diocese of Saint Maroun
- Diocese of Palmerston North
- Diocese of Maitland-Newcastle
- Diocese of Hamilton in New Zealand
- Diocese of Dunedin
- Diocese of Christchurch
- Diocese of Ballarat
- Diocese of Auckland
- Diocese of Aitape
- Archdiocese of Perth
- Archdiocese of Melbourne
- Archdiocese of Hobart
- Archdiocese of Brisbane
- Archdiocese of Agaņa


Europe United Kingdom
- Diocese of Motherwell
- Archdiocese of Birmingham
- Archdiocese of Cardiff
- Archdiocese of Glasgow
- Archdiocese of Liverpool
- Diocese of Middlesbrough
- Diocese of Menevia
- Diocese of Leeds
- Diocese of Lancaster
- Diocese of Hexham and Newcastle
- Diocese of Hallam
- Diocese of Galloway
- Diocese of East Anglia
- Diocese of Dunkeld
- Diocese of Dromore
- Diocese of Down and Connor
- Diocese of Clifton
- Diocese of Brentwood
- Diocese of Argyll and the Isles
- Archdiocese of Southwark
- Archdiocese of Saint Andrews and E...
- Diocese of Nottingham
- Diocese of Westminster
- Diocese of Salford
- Diocese of Plymouth
- Diocese of Paisley

Asia
- Archdiocese of Singapore
- Archdiocese of Manila
- Archdiocese of Lahore
- Archdiocese of Kuching
- Archdiocese of Kuala Lumpur
- Diocese of Kota Kinabalu
- Diocese of Marbel
- Diocese of Miri

Africa
- Diocese of Mpika
- Diocese of Keimoes-Upington
- Diocese of Eshowe
- Diocese of Benguela
- Archdiocese of Songea
- Archdiocese of Cape Town

Europe Ireland
- Diocese of Waterford and Lismore
- Diocese of Raphoe
- Diocese of Ossory
- Diocese of Meath
- Diocese of Limerick
- Diocese of Kildare and Leighlin
- Diocese of Kerry
- Diocese of Ferns
- Diocese of Elphin
- Diocese of Cork and Ross
- Diocese of Cloyne
- Diocese of Clonfert
- Diocese of Ardagh and Clonmacnois
- Diocese of Achonry
- Archdiocese of Tuam
- Archdiocese of Dublin
- Archdiocese of Cashel and Emly

Europe Bosnia and Herzegovina
- Diocese of Banja Luka

Europe
- Diocese of Portsmouth
- Diocese of Kilmore
- Diocese of Clogher
- Archdiocese of Armagh

Directories
- Catholic Dioceses of the World
- Catholic Dioceses All Around the World

Caribbean
- Diocese of St. Georges-in-Grenada
- Diocese of Mandeville
- Archdiocese of Port of Spain
- Archdiocese of Castries

- Diocese of Partenia
- Catholic Military Ordinariate
- Archdiocese for the Military Servi...

United States
- Diocese of Oakland
- Diocese of La Crosse
- Diocese of Kansas City-St. Joseph
- Diocese of Kalamazoo
- Diocese of Juneau
- Diocese of Joliet
- Diocese of Jefferson City
- Diocese of Jackson
- Diocese of Houma Thibodaux
- Diocese of Helena
- Diocese of Greensburg
- Diocese of Green Bay
- Diocese of Great Falls-Billings
- Diocese of Grand Rapids
- Diocese of Grand Island
- Diocese of Gaylord
- Diocese of Gary
- Diocese of Lafayette
- Diocese of Lafayette-in-Indiana
- Diocese of Lake Charles
- Diocese of Norwich
- Diocese of New Ulm
- Diocese of Nashville
- Diocese of Monterey
- Diocese of Metuchen
- Diocese of Memphis
- Diocese of Marquette
- Diocese of Manchester
- Diocese of Madison
- Diocese of Lubbock
- Diocese of Lincoln
- Diocese of Lexington
- Diocese of Las Vegas
- Diocese of Las Cruces
- Diocese of Laredo
- Diocese of Lansing
- Diocese of Gallup
- Diocese of Fresno
- Diocese of Fort Worth
- Diocese of Camden
- Diocese of Burlington
- Diocese of Buffalo
- Diocese of Brownsville
- Diocese of Brooklyn
- Diocese of Bridgeport
- Diocese of Boise
- Diocese of Bismarck
- Diocese of Birmingham in Alabama
- Diocese of Biloxi
- Diocese of Belleville
- Diocese of Beaumont
- Diocese of Baton Rouge
- Diocese of Baker
- Diocese of Austin
- Diocese of Arlington
- Diocese of Charleston
- Diocese of Charlotte
- Diocese of Cleveland
- Diocese of Fort Wayne-South Bend
- Diocese of Fargo
- Diocese of Fall River
- Diocese of Evansville
- Diocese of Erie
- Diocese of El Paso
- Diocese of Duluth
- Diocese of Dodge City
- Diocese of Des Moines
- Diocese of Davenport
- Diocese of Dallas
- Diocese of Crookston
- Diocese of Covington
- Diocese of Corpus Christi
- Diocese of Columbus
- Diocese of Colorado Springs
- Diocese of Altoona-Johnstown
- Diocese of Ogdensburg
- Eparchy of Parma
- Eparchy of Newton
- Diocese of Youngstown
- Diocese of Worcester
- Diocese of Winona
- Diocese of Wilmington
- Diocese of Wichita
- Diocese of Wheeling-Charleston
- Diocese of Venice in Florida
- Diocese of Tyler
- Diocese of Tulsa
- Diocese of Tucson
- Diocese of Trenton
- Diocese of Toledo
- Diocese of Syracuse
- Diocese of Steubenville
- Eparchy of Saint Maron of Brooklyn
- Eparchy of Stamford
- Eparchy of Stamford
- Eparchy of Van Nuys
- Diocese of Springfield-Cape Girardeau
- Diocese of Springfield in Illinois
- Diocese of Springfield
- Diocese of Rockford
- Diocese of Rochester
- Diocese of Richmond
- Diocese of Reno
- Diocese of Rapid City
- Diocese of Raleigh
- Diocese of Pueblo
- Diocese of Providence
- Diocese of Portland
- Diocese of Pittsburgh
- Diocese of Phoenix
- Diocese of Pensacola-Tallahassee
- Diocese of Paterson
- Diocese of Palm Beach
- Diocese of Owensboro
- Diocese of Orlando

United States (part 2)
- Diocese of Rockville Centre
- Diocese of Sacramento.
- Diocese of Saginaw
- Diocese of Spokane
- Diocese of Sioux Falls
- Diocese of Sioux City
- Diocese of Shreveport
- Diocese of Scranton
- Diocese of Savannah
- Diocese of Santa Rosa
- Diocese of San Jose
- Diocese of San Diego
- Diocese of San Bernardino
- Diocese of San Angelo
- Diocese of Salt Lake City
- Diocese of Salina
- Diocese of Saint Petersburg
- Diocese of Saint Cloud
- Diocese of Saint Augustine
- Diocese of Orange
- Diocese of Alexandria
- Archdiocese of Los Angeles
- Archdiocese of Kansas City in Kansas
- Archdiocese of Indianapolis
- Archdiocese of Hartford
- Archdiocese of Galveston-Houston
- Archdiocese of Dubuque
- Archdiocese of Detroit
- Archdiocese of Denver
- Archdiocese of Cincinnati
- Archdiocese of Chicago
- Archdiocese of Boston
- Archdiocese of Baltimore
- Archdiocese of Atlanta
- Archdiocese of Anchorage
- Archdiocese of Louisville
- Archdiocese of Miami
- Archdiocese of Milwaukee
- Diocese of Albany
- Archdiocese of Washington
- Archdiocese of Seattle
- Archdiocese of Santa Fe
- Archdiocese of San Francisco
- Archdiocese of San Antonio
- Archdiocese of Saint Paul and Minn...
- Archdiocese of Saint Louis
- Archdiocese of Portland in Oregon
- Archdiocese of Philadelphia
- Archdiocese of Omaha
- Archdiocese of Oklahoma City
- Archdiocese of Newark
- Archdiocese of New York
- Archdiocese of New Orleans
- Archdiocese of Mobile

Canada
- Diocese of Yarmouth
- Diocese of Victoria
- Diocese of Timmins
- Diocese of Thunder Bay
- Archdiocese of Ottawa
- Archdiocese of Kingston
- Archdiocese of Halifax
- Archdiocese of Edmonton
- Archdiocese of Regina
- Archdiocese of Toronto
- Archdiocese of Vancouver
- Diocese of Sault Ste. Marie
- Diocese of Saskatoon
- Diocese of Saint Catharines
- Diocese of Prince George
- Diocese of Prince Albert
- Diocese of Peterborough
- Diocese of Pembroke
- Diocese of Nelson
- Diocese of London
- Diocese of Hamilton
- Diocese of Grand Falls
- Diocese of Charlottetown
- Diocese of Calgary
- Diocese of Antigonish
- Diocese of Alexandria-Cornwall
- Archdiocese of Winnipeg

Bermuda
- Diocese of Hamilton in Bermuda


Middle East
- The Apostolic Vicariate of Arabia
- Latin Vicariate Apostolic of Kuwait
- Latin Patriarchate of Jerusalem
- A Catholic Bishop in the Cradle of...
- A Catacomb Church?