 | 1966 | 1967 | 1968 |  |
Date | Country | Change |
| 1967 |  Algeria | Titular Episcopal See of Medianas Zabuniorum was renamed as Titular Episcopal See of Medianas Zabuniorum |
| 1967 |  Iraq | Titular Archiepiscopal See of Kaškar (Chaldean Rite) was restored |
| 1967 |  Italy | Titular Episcopal See of Eclena was renamed as Titular Episcopal See of Eclano |
| 1967 | Italy | Titular Episcopal See of Sabiana was renamed as Titular Episcopal See of Sabiona |
| 1967 | Italy | Titular Episcopal See of Zuglio was restored |
| 1967.02.07 |  Congo-Kinshasa | Diocese of Beni was renamed as Diocese of Butembo–Beni |
| 1967.02.09 |  Thailand | Diocese of Nakhorn-Sawan was established (from Metropolitan Archdiocese of Bangkok and became suffragan of Bangkok) |
| 1967.02.14 |  Australia | Diocese of Darwin lost territory to Diocese of Cairns |
| 1967.02.14 | Iraq | Diocese of Mossul (Chaldean Rite) was promoted as Archdiocese of Mossul |
| 1967.02.27 |  Brazil | Diocese of Livramento de Nossa Senhora was established (from Diocese of Caetité and became suffragan of São Salvador da Bahia) |
| 1967.03.08 |  England,  Scotland,  Wales | Apostolic Exarchate of England and Wales (Ukrainian Rite) was renamed as Apostolic Exarchate of Great Britain (gained territory of Scotland) |
| 1967.03.14 |  Angola | Diocese of Carmona e São Salvador was established (from Metropolitan Archdiocese of Luanda and became suffragan of Luanda) |
| 1967.03.20 |  Philippines | Diocese of Butuan was established (from Diocese of Surigao and became suffragan of Cagayan de Oro) |
| 1967.03.29 |  Paraguay | Territorial Prelature of Caacupé was promoted as Diocese of Caacupé |
| 1967.04.13 |  Indonesia | Diocese of Kupang was established (from Diocese of Atambua and became suffragan of Endeh) |
| 1967.04.13 |  Madagascar | Diocese of Ihosy was established (from Diocese of Farafangana and Diocese of Fort-Dauphin and became suffragan of Fianarantsoa) |
| 1967.04.13 |  South Africa | Apostolic Prefecture of De Aar was promoted as Diocese of De Aar (became suffragan of Cape Town) |
| 1967.04.27 |  Guatemala | Diocese of Santa Cruz del Quiché was established (from Diocese of Sololá and became suffragan of Guatemala) |
| 1967.04.29 |  Peru | Diocese of Callao was established (from Metropolitan Archdiocese of Lima and became suffragan of Lima) |
| 1967.05.31 |  Belgium | Diocese of Brugge lost territory to Diocese of Tournai |
| 1967.05.31 | Belgium | Diocese of Gent exchanged territory with Diocese of Tournai |
| 1967.05.31 | Belgium | Diocese of Hasselt was established (from Diocese of Liège and became suffragan of Mechelen–Brussel) |
| 1967.05.31 | Belgium | Diocese of Liège lost territory to Metropolitan Archdiocese of Mechelen–Brussel |
| 1967.05.31 | Belgium | Diocese of Tournai lost territory to Metropolitan Archdiocese of Mechelen–Brussel |
| 1967.06.12 |  Bermuda | Apostolic Vicariate of Bermuda Islands was promoted as Diocese of Hamilton (without ecclesiastical province) |
| 1967.06.12 |  India | Diocese of Kurnool was established (from Diocese of Nellore and became suffragan of Hyderabad) |
| 1967.06.12 |  Laos | Apostolic Vicariate of Pakse was established (from Apostolic Vicariate of Savannakhet) |
| 1967.06.12 |  Zambia | Diocese of Kasama was promoted as Metropolitan Archdiocese of Kasama (with suffragan sees Abercorn and Fort Rosebery) |
| 1967.06.16 | Congo-Kinshasa | Diocese of Ikela was renamed as Diocese of Bokungu–Ikela |
| 1967.06.22 |  Vietnam | Diocese of Ban Mê Thuôt was established (from Diocese of Đà Lat and Diocese of Kontum and became suffragan of Huê) |
| 1967.06.28 |  Chile | Diocese of Antofagasta was promoted as Metropolitan Archdiocese of Antofagasta (with suffragan sees Iquique, Arica and Calama) |
| 1967.07.13 |  Canada | Apostolic Vicariate of Baie d’Hudson was promoted as Diocese of Churchill (became suffragan of Keewatin–Le Pas) |
| 1967.07.13 | Canada | Apostolic Vicariate of Grouard was promoted as Metropolitan Archdiocese of Grouard–McLennan (with suffragan sees Mackenzie–Fort Smith, Prince George and Whitehorse) |
| 1967.07.13 | Canada | Apostolic Vicariate of Keewatin was promoted as Metropolitan Archdiocese of Keewatin–Le Pas (with suffragan sees Churchill, Labrador–Schefferville and Moosonee) |
| 1967.07.13 | Canada | Apostolic Vicariate of Labrador was promoted as Diocese of Labrador–Schefferville (became suffragan of Keewatin–Le Pas) |
| 1967.07.13 | Canada | Apostolic Vicariate of Mackenzie was promoted as Diocese of Mackenzie–Fort Smith (became suffragan of Grouard–McLennan) |
| 1967.07.13 | Canada | Apostolic Vicariate of Baie de James was promoted as Diocese of Moosonee (became suffragan of Keewatin–Le Pas) |
| 1967.07.13 | Canada | Apostolic Vicariate of Prince Rupert was promoted as Diocese of Prince George (became suffragan of Grouard–McLennan) |
| 1967.07.13 | Canada | Apostolic Vicariate of Whitehorse was promoted as Diocese of Whitehorse (became suffragan of Grouard–McLennan) |
| 1967.07.31 | Philippines | Diocese of Dipolog was established (from Metropolitan Archdiocese of Zamboanga and became suffragan of Zamboanga) |
| 1967.09.12 | Italy | Diocese of Terracina was renamed as Diocese of Terracina–Latina (gained territory from Diocese of Velletri) |
| 1967.09.12 | Italy | Diocese of Velletri lost territory to Diocese of Terracina–Latina |
| 1967.09.14 |  Jamaica | Diocese of Kingston was promoted as Metropolitan Archdiocese of Kingston in Jamaica (with suffragan sees Belize and Montego Bay and lost territory to establish Diocese of Montego Bay) |
| 1967.09.14 | Jamaica | Diocese of Montego Bay was established (from Diocese of Kingston and became suffragan of Kingston in Jamaica) |
| 1967.09.16 | Congo-Kinshasa | Apostolic Prefecture of Kole was promoted as Diocese of Kole (became suffragan of Luluabourg) |
| 1967.09.26 | Congo-Kinshasa | Apostolic Prefecture of Doruma was promoted as Diocese of Doruma (became suffragan of Kisangani) |
| 1967.09.26 | Congo-Kinshasa | Diocese of Luiza was established (from Metropolitan Archdiocese of Luluabourg and became suffragan of Luluabourg) |
| 1967.09.26 | Congo-Kinshasa | Metropolitan Archdiocese of Luluabourg lost territory to Diocese of Luebo |
| 1967.09.26 |  Martinique | Diocese of Fort-de-France–Saint-Pierre was promoted as Metropolitan Archdiocese of Fort-de-France–Saint-Pierre (with suffragan sees Basse-Terre et Pointe-à-Pitre and Cayenne) |
| 1967.10.06 |  USA | Diocese of Fresno was established (from Diocese of Monterey–Fresno and became suffragan of Los Angeles) |
| 1967.10.06 | USA | Diocese of Monterey–Fresno was renamed as Diocese of Monterey (lost territory to establish Diocese of Fresno) |
| 1967.10.23 |  Sri Lanka | Diocese of Trincomalee was renamed as Diocese of Trincomalee–Batticaloa |
| 1967.10.30 | Congo-Kinshasa | Diocese of Mahagi was renamed as Diocese of Mahagi–Nioka |
| 1967.11.22 | Zambia | Diocese of Fort Rosebery was renamed as Diocese of Mansa |
| 1967.11.22 | Zambia | Diocese of Abercorn was renamed as Diocese of Mbala |
| 1967.12.23 | Guatemala | Territorial Prelature of Huehuetenango was promoted as Diocese of Huehuetenango |
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