| Year | From | To | ||
|---|---|---|---|---|
| 1911 | Diocese of Liverpool, England, Great Britain | Elevated | Archdiocese of Liverpool, England, Great Britain | Elevated |
| 1911 | Diocese of Birmingham, England, Great Britain | Elevated | Archdiocese of Birmingham, England, Great Britain | Elevated |
| 1911 | Diocese of Hexham and Newcastle, England, Great Britain (from Westminster to Liverpool) | Metropolitan Changed | ||
| 1911 | Diocese of Leeds, England, Great Britain (from Westminster to Liverpool) | Metropolitan Changed | ||
| 1911 | Diocese of Middlesbrough, England, Great Britain (from Westminster to Liverpool) | Metropolitan Changed | ||
| 1911 | Diocese of Salford, England, Great Britain (from Westminster to Liverpool) | Metropolitan Changed | ||
| 1911 | Diocese of Clifton, England, Great Britain (from Westminster to Birmingham) | Metropolitan Changed | ||
| 1911 | Diocese of Menevia, Wales, Great Britain (from Westminster to Birmingham) | Metropolitan Changed | ||
| 1911 | Diocese of Newport, Wales, Great Britain (from Westminster to Birmingham) | Metropolitan Changed | ||
| 1911 | Diocese of Plymouth, England, Great Britain (from Westminster to Birmingham) | Metropolitan Changed | ||
| 1911 | Diocese of Shrewsbury, England, Great Britain (from Westminster to Birmingham) | Metropolitan Changed | ||
| 1925 | Diocese of Kielce, Poland
Diocese of Łódź, Poland Diocese of Wrocław (Breslau), Poland | Territory Lost | Diocese of Częstochowa, Poland | Erected |
| 1925 | Apostolic Administration of Upper Silesia {Górny Sląsk}, Poland | Elevated | Diocese of Katowice, Poland | Elevated |
| 1925 | Diocese of Kraków, Poland | Elevated | Archdiocese of Kraków {Cracow}, Poland | Elevated |
| 1925 | Diocese of Sejny o Sejna o Augustów, Poland | Name Changed | Diocese of Łomża, Poland | Name Changed |
| 1925 | Diocese of Luceoria o Łuck e Zytomir o Zytomierz, Ukraine | Split | Diocese of Lutsk, Ukraine
Diocese of Zytomir, Ukraine | Split |
| 1925 | Diocese of Minsk, Belarus | Territory Lost | Diocese of Pinsk, Belarus | Erected |
| 1925 | Diocese of Janów Podlaski (Podlaska o Janów), Poland | Name Changed | Diocese of Siedlce, Poland | Name Changed |
| 1925 | Diocese of Vilnius, Lithuania | Elevated | Archdiocese of Vilnius, Lithuania | Elevated |
| 1925 | Diocese of Włocławek (Kujawy, Kalisze), Poland (from Warszawa {Warsaw}) | Metropolitan Changed | ||
| 1925 | Diocese of Tarnów, Poland (from Lviv) | Metropolitan Changed | ||
| 1925 | Diocese of Kielce, Poland (from Warszawa {Warsaw}) | Metropolitan Changed | ||
| 1953 | Territorial Prelature of Cotabato and Sulu, Philippines | Split | Territorial Prelature of Cotabato, Philippines
Prefecture Apostolic of Sulu, Philippines | Split |
| 1959 | Istituto del Prado | Approbation | ||
| 1971 | Diocese of Barrancabermeja, Colombia (Aquitania (in Antioquia)) | Territory Lost | Diocese of Sonsón-Rionegro, Colombia | Territory Added |
| 1971 | Diocese of Facatativá, Colombia (Tapaipi, San Antonio de Aguilera, Tudela, and La Peña) | Territory Lost | Diocese of Zipaquirá, Colombia | Territory Added |
| 1974 | Archdiocese of São Salvador da Bahia, Brazil (Alagoinhas, Catú, Mata de S. Joâo, Inhambupe, Ribeira do Amparo, Entre Rios, Nova Soure, Conde, Itapicuru, Esplanada, Rio Real, Olindina, Aporá, Po juca, Crisópolis , Satiro Dias, Teodoro Sampaio, Acajutiba, Aramari, Jandaira, Cipo, Itanagra, ...) | Territory Lost | Diocese of Alagoinhas, Bahia, Brazil | Erected |
| 1974 | Diocese of Oeiras, Brazil (Picos, Itainopolis, Bocaina, S. José do Piani, S. Antonio de Lisboa, Jaicós, Simoes, Padre Marcos, Fronteiras, S. Juliäo, Ipiranga do Piauí, Dom Expedito Lopez, S. Cruz do Piauí, Paulistana, Pio Nono, Monsignor Hipólito, and Francisco Santos) | Territory Lost | Diocese of Picos, Piaui, Brazil | Erected |
| 1976 | Military Ordinariate of New Zealand, Military | Erected | ||
| 1977 | Archdiocese of Siena, Italy (Abbadia Ardenga and Castiglion del Bosco) | Territory Lost | Diocese of Montalcino, Italy | Territory Added |
| 1977 | Diocese of Montalcino, Italy (Pieve a Salti in San Giovanni d'Asso) | Territory Lost | Diocese of Chiusi e Pienza, Italy | Territory Added |
| 1977 | Diocese of Chiusi e Pienza, Italy (Chiusure and Canonica Grossennana) | Territory Lost | Territorial Abbey of Monte Oliveto Maggiore, Italy | Territory Added |
| 1977 | Diocese of Città della Pieve, Italy (Santa Fiora, Bagnolo, and Bagnore) | Territory Lost | Diocese of Sovana e Pitigliano, Italy | Territory Added |
| 1978 | Eparchy of Tiruvalla (Syro-Malankara), India (Malapuram, Kozhikode, Cannanore, Nilgiris, Mysore, Coorg, Mandya, Hassan, South Cañara, Chikmagalur, and Shimoga) | Territory Lost | Eparchy of Battery (Bathery) (Syro-Malankara), India | Erected |
| 1981 | Diocese of Valparaíso, Chile (Llay Llay) | Territory Lost | Diocese of San Felipe, Chile | Territory Added |
| 1985 | Prefecture Apostolic of Chinhoyi, Zimbabwe | Elevated | Diocese of Chinhoyi, Zimbabwe | Elevated |
| 1989 | Archdiocese of Tananarive, Madagascar | Name Changed | Archdiocese of Antananarivo, Madagascar | Name Changed |
| 1989 | Archdiocese of Diégo-Suarez, Madagascar | Name Changed | Archdiocese of Antsiranana, Madagascar | Name Changed |
| 1989 | Diocese of Majunga, Madagascar | Name Changed | Diocese of Mahajanga, Madagascar | Name Changed |
| 1989 | Diocese of Tuléar, Madagascar | Name Changed | Diocese of Toliara, Madagascar | Name Changed |
| 1993 | Apostolic Administration of Caucasus, Russian Federation
Diocese of Iaşi, Romania Apostolic Administration of Odessa, Ukraine Apostolic Administration of Russia (Armenian), Russian Federation Diocese of Tiraspol, Moldova Apostolic Administration of Tiflis and Georgia Apostolic Administration of Volga, Russian Federation | Territory Lost | Apostolic Administration of Moldova (Republic of Moldova) | Erected |
| 2005 | Archdiocese of Gatineau-Hull, Québec, Canada | Name Changed | Archdiocese of Gatineau, Québec, Canada | Name Changed |
| 2019 | Vatican Secret Archive, Roman Curia | Name Changed | Vatican Apostolic Archive, Roman Curia | Name Changed |
| 2024 | Diocese of Fenyang [Fenyang], China (Counties of Kelan and Jingle) | Suppressed | Archdiocese of Taiyuan [Taiyüan], China | Territory Added |
| 2024 | Diocese of Fenyang [Fenyang], China (Counties of Pingyao and Jiexiu) | Suppressed | Diocese of Yuci [Yütze], China | Territory Added |
| 2024 | Diocese of Fenyang [Fenyang], China | Territory Lost | Diocese of Lüliang, China | Erected |
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