 | 1943 | 1944 | 1945 |  |
Date | Country | Change |
| 1944 |  Syria | Titular Episcopal See of Epiphania in Syria was restored |
| 1944 | Syria | Titular Episcopal See of Epiphania in Syria (Maronite Rite) was suppressed |
| 1944 |  Turkiye | Titular Metropolitan See of Edessa in Osrhoëne (Syriac Rite) was established |
| 1944 | Titular Episcopal See of Thenara was suppressed | |
| 1944.01.01 |  Malta | Diocese of Malta was promoted as Metropolitan Archdiocese of Malta (with suffragan see Gozo) |
| 1944.01.13 |  China | Apostolic Prefecture of Shundefu 順德府 was promoted as Apostolic Vicariate of Shundefu 順德府 |
| 1944.01.14 |  Canada | Apostolic Vicariate of Yukon–Prince Rupert was renamed as Apostolic Vicariate of Prince Rupert (lost territory to establish Apostolic Vicariate of Whitehorse) |
| 1944.01.14 | Canada | Apostolic Vicariate of Whitehorse was established (from Apostolic Vicariate of Grouard and Apostolic Vicariate of Yukon–Prince Rupert and became suffragan of Saint-Boniface) |
| 1944.02.26 |  Brazil | Diocese of Piracicaba was established (from Diocese of Campinas and became suffragan of São Paulo) |
| 1944.03.09 | China | Apostolic Prefecture of Yuci 榆次 was promoted as Apostolic Vicariate of Yuci 榆次 |
| 1944.03.10 |  Norway,  Svalbard and Jan Mayen | Mission sui juris of Northern Norway was promoted as Apostolic Prefecture of Northern Norway |
| 1944.04.17 |  USA | Abbacy nullius of Belmont–Mary Help of Christians lost territory to Diocese of Raleigh |
| 1944.05.11 |  Thailand | Apostolic Vicariate of Chantaburi was established (from Apostolic Vicariate of Bangkok) |
| 1944.07.02 |  Argentina | Metropolitan Archdiocese of Salta lost territory to Diocese of Catamarca |
| 1944.07.08 |  Chile | Apostolic Vicariate of Araucanía lost territory to Diocese of Valdivia |
| 1944.07.08 | Chile | Apostolic Administration of Valdivia was promoted as Diocese of Valdivia (gained territory from Apostolic Vicariate of Araucanía and became suffragan of Concepción) |
| 1944.07.13 | China | Apostolic Prefecture of Sanyuan 三原 was promoted as Apostolic Vicariate of Sanyuan 三原 |
| 1944.08.30 | Brazil | Apostolic Administration of Rio Branco was promoted as Territorial Prelature of Rio Branco (became suffragan of Belém do Pará) |
| 1944.10.21 | USA | Diocese of Evansville was established (from Diocese of Indianapolis and became suffragan of Indianapolis) |
| 1944.10.21 | USA | Diocese of Indianapolis was promoted as Metropolitan Archdiocese of Indianapolis (with suffragan sees Evansville, Fort Wayne and Lafayette in Indiana and lost territory to establish Diocese of Evansville) |
| 1944.10.21 | USA | Diocese of Lafayette in Indiana was established (from Diocese of Fort Wayne and became suffragan of Indianapolis) |
| 1944.10.21 | USA | Diocese of Steubenville was established (from Diocese of Columbus and became suffragan of Cincinnati) |
| 1944.11.09 | China | Apostolic Prefecture of Zhumadian 駐馬店 was promoted as Apostolic Vicariate of Zhumadian 駐馬店 |
| 1944.12.06 |  Sri Lanka,  Maldives | Metropolitan Archdiocese of Colombo was renamed as Metropolitan Archdiocese of Colombo in Ceylon |
| 1944.12.16 | Brazil | Diocese of Oeiras was established (from Diocese of Piaui and became suffragan of São Luís do Maranhão) |
| 1944.12.16 | Brazil | Diocese of Parnaíba was established (from Diocese of Piaui and became suffragan of São Luís do Maranhão) |
| 1944.12.16 | Brazil | Diocese of Piaui was renamed as Diocese of Teresina (lost territory to establish Diocese of Oeiras and Diocese of Parnaíba) |
| 1944.12.16 | Canada | Diocese of Edmundston was established (from Diocese of Bathurst and became suffragan of Moncton) |
| 1944.12.18 |  Peru | Diocese of Huancavélica was established (from Diocese of Ayacucho and became suffragan of Lima) |
| 1944.12.18 | Peru | Diocese of Huancayo was established (from Diocese of Huánuco and became suffragan of Lima) |
| 1944.12.18 | Peru | Diocese of Tacna was established (from Metropolitan Archdiocese of Arequipa and became suffragan of Arequipa) |
| 1944.12.23 | USA | Diocese of Concordia was suppressed (to establish Diocese of Salina) |
| 1944.12.23 | USA | Diocese of Salina was established (from the suppressed Diocese of Concordia and became suffragan of Saint Louis) |
© 2026 GCatholic.org
|
