| Year | From | To | ||
|---|---|---|---|---|
| 1258 | Diocese of Albarracin, Spain
Diocese of Segorbe, Spain | United | Diocese of Segorbe-Albarracin, Spain | United |
| 1818 | Vicariate Apostolic of Smirne, Turkey | Elevated | Archdiocese of Izmir (Smirne), Turkey | Elevated |
| 1870 | Diocese of Toronto, Ontario, Canada | Elevated | Archdiocese of Toronto, Ontario, Canada | Elevated |
| 1870 | Diocese of Hamilton, Ontario, Canada (from Québec) | Metropolitan Changed | ||
| 1870 | Diocese of Kingston, Ontario, Canada (from Québec) | Metropolitan Changed | ||
| 1870 | Diocese of London, Ontario, Canada (from Québec) | Metropolitan Changed | ||
| 1890 | Vicariate Apostolic of Two Guineas {Des Deux Guinées}, Gabon | Territory Lost | Prefecture Apostolic of Cameroun | Erected |
| 1890 | Vicariate Apostolic of Two Guineas {Des Deux Guinées}, Gabon | Name Changed | Vicariate Apostolic of Gabon, Gabon | Name Changed |
| 1904 | Vicariate Apostolic of Belgian Congo {Congo Belga} o Indipendente, Congo (Dem. Rep.) | Territory Lost | Prefecture Apostolic of Kasaï Superiore, Congo (Dem. Rep.) | Erected |
| 1926 | Vicariate Apostolic of Constantinople, Turkey (Macedonia and Thrace, Greece) | Territory Lost | Vicariate Apostolic of Thessaloniki, Greece | Erected |
| 1926 | Archdiocese of Athēnai {Athens}, Greece (Peloponnese and Kythira island) | Territory Added | ||
| 1927 | Diocese of Nagasaki, Japan (Kagoshima and Okinawa) | Territory Lost | Prefecture Apostolic of Kagoshima, Japan | Erected |
| 1927 | Diocese of Padova {Padua}, Italy (Right bank of the river Brenta near Piazzala sul Brenta) | Territory Lost | Diocese of Vicenza, Italy | Territory Added |
| 1929 | Vicariate Apostolic of Chengtingfu [Zhengding], China (ChaosJiien, Ningtsing, Lungping, Paisiang, Lincheng, and Kaoyi) | Territory Lost | Prefecture Apostolic of Chaohsien [Zhaoxian], China | Erected |
| 1957 | Diocese of Ibagué, Colombia (Espinal, Alpujarra, Ataco, Carmen de Apicala, Coyaima, Cunday, Chaparral, Chicoral, Dolores, Flanders, Guamo, Icononzo, Melgar, Natagaiina, Ortega , Prado, Purificación, Rioblanco, San Antonio, San Luis, Saldaña, Suárez, and Villarica) | Territory Lost | Diocese of Espinal, Colombia | Erected |
| 1957 | Archdiocese of Medellín, Colombia (Abejorral, Alejandría, Aquitania, Algeria, Cocorná, Concepción, El Carmen de Viboral, El Jordán, El Peñol, El Retiro, El Santuario, Granada, Guarne, Guatapé, La Ceja, la Unión, Marinilla, Mesopotamia, Nariño, Puerto Triunfo, Puerto Nare, Pantanillo, ...) | Territory Lost | Diocese of Sonsón, Colombia | Erected |
| 1958 | Diocese of Chilapa, Guerrero, México (Coahuayutla, La Unión, Petatlán, Tecpán, Atoyac, Benito Juárez, Coyuca de Benítez, Acapulco, San Marcos, Tecoanapa, Ayutla, Florencio Villareal, Cauatepec , Cópala, San Luis Acatlán, Azoyú, Cuajinicuilapa, Igualapa, Ometepec, Tlacoachistlahuaca, and ...) | Territory Lost | Diocese of Acapulco, Guerrero, México | Erected |
| 1982 | Diocese of Mount Hagen, Papua New Guinea (Enga) | Territory Lost | Diocese of Wabag, Papua New Guinea | Erected |
| 1982 | Diocese of Mount Hagen, Papua New Guinea | Elevated | Archdiocese of Mount Hagen, Papua New Guinea | Elevated |
| 1982 | Prefecture Apostolic of Anuradhapura, Sri Lanka | Elevated | Diocese of Anuradhapura, Sri Lanka | Elevated |
| 1982 | Diocese of Bamenda, Cameroon (Northern part) | Territory Lost | Diocese of Kumbo, Cameroon | Erected |
| 1982 | Diocese of Douala, Cameroon | Elevated | Archdiocese of Douala, Cameroon | Elevated |
| 1982 | Diocese of Garoua, Cameroon | Elevated | Archdiocese of Garoua, Cameroon | Elevated |
| 1982 | Diocese of Bamenda, Cameroon | Elevated | Archdiocese of Bamenda, Cameroon | Elevated |
| 1982 | Diocese of Nkongsamba, Cameroon (from Yaoundé) | Metropolitan Changed | ||
| 1982 | Diocese of Bafoussam, Cameroon (from Yaoundé) | Metropolitan Changed | ||
| 1982 | Diocese of Maroua-Mokolo, Cameroon (from Yaoundé) | Metropolitan Changed | ||
| 1982 | Diocese of Yagoua, Cameroon (from Yaoundé) | Metropolitan Changed | ||
| 1982 | Diocese of Buéa, Cameroon (from Yaoundé) | Metropolitan Changed | ||
| 1982 | Diocese of Mendi, Papua New Guinea (from Port Moresby) | Metropolitan Changed | ||
| 1982 | Diocese of Goroka, Papua New Guinea (from Madang) | Metropolitan Changed | ||
| 2006 | Mission "Sui Iuris" of Kyrgyzstan | Elevated | Apostolic Administration of Kyrgyzstan | Elevated |
| 2014 | Archdiocese of Jos, Nigeria
Diocese of Shendam, Nigeria | Territory Lost | Diocese of Pankshin, Nigeria (Pankshin, Kanke, Mangu, Bokkos, and Kanam) | Erected |
| 2017 | Diocese of Sault Sainte Marie, Ontario, Canada (Pie Mobert and Manitouwage) | Territory Lost | Diocese of Thunder Bay, Ontario, Canada | Territory Added |
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