| Year | From | To | ||
|---|---|---|---|---|
| 1239 | Diocese of Recanati, Italy | Erected | ||
| 1817 | Mission "Sui Iuris" of Batavia (Holland Mission), Netherlands | Territory Lost | Prefecture Apostolic of Dutch Guyana-Suriname, Antilles | Erected |
| 1886 | Vicariate Apostolic of Two Guineas {Des Deux Guinées}, Gabon | Territory Lost | Mission "Sui Iuris" of Belgian Congo {Congo Belga} o Indipendente, Congo (Dem. Rep.) | Erected |
| 1886 | Prefecture Apostolic of Lower Congo (Portuguese Congo), Angola | Name Changed | Prefecture Apostolic of Lower Congo in Cubango, Angola | Name Changed |
| 1924 | Archdiocese of Michoacán, México | Name Changed | Archdiocese of Morelia, Michoacán, México | Name Changed |
| 1924 | Diocese of Hexham and Newcastle, England, Great Britain (Westmorland and Cumberland)
Archdiocese of Liverpool, England, Great Britain (Northern part) | Territory Lost | Diocese of Lancaster, England, Great Britain | Erected |
| 1929 | Vicariate Apostolic of Yünnanfu, China (Sze-mao, Ning-erh, Mo-kiang, King-hu, Yuan-mang, Sin-ping, Lan-tsang, Chen-yuan, King-tung, Mien-ning, Teng-chung, Pao-shan, Yung- Ping, Chen-Jcang, Lung-ling, Ta-U, Siang-yun, Jerh-yuan, Feng-y, Teng-chwan, Ping-chwan, Yun-lung, Mi-tu, Li-Mang, ...) | Territory Lost | Mission "Sui Iuris" of Tali [Dali], China | Erected |
| 1955 | Archdiocese of Burgos, Spain (Reinosa, Santa Cruz, Valdeprado, and La Rasa (in Santander)) | Territory Lost | Diocese of Santander, Spain | Territory Added |
| 1955 | Archdiocese of Burgos, Spain (Canales, Ezcaray, and Treviana (in Logroño)) | Territory Lost | Diocese of Calahorra y La Calzada, Spain | Territory Added |
| 1955 | Archdiocese of Burgos, Spain (Montenegro de Cameros (in Soria)) | Territory Lost | Diocese of Osma, Spain | Territory Added |
| 1955 | Diocese of León, Spain (parts of Santander) | Territory Lost | Diocese of Santander, Spain | Territory Added |
| 1955 | Diocese of Osma, Spain (94 parishes in Burgos) | Territory Lost | Archdiocese of Burgos, Spain | Territory Added |
| 1955 | Diocese of Osma, Spain (2 parishes in Segovia) | Territory Lost | Diocese of Segovia, Spain | Territory Added |
| 1955 | Diocese of Sigüenza, Spain (Almazán, Ayllón, Baraona, Berlanga del Duero, Maranchón, Medinaeeli, Retortillo, and Ariza in Soria) | Territory Lost | Diocese of Osma, Spain | Territory Added |
| 1955 | Diocese of Sigüenza, Spain (Sorbe and Ayllón in Segovia) | Territory Lost | Diocese of Segovia, Spain | Territory Added |
| 1955 | Diocese of Calahorra y La Calzada, Spain (Yanguas and San Pedro de Manrique in Soria) | Territory Lost | Diocese of Osma, Spain | Territory Added |
| 1955 | Diocese of Calahorra y La Calzada, Spain (10 parishes in Burgos) | Territory Lost | Archdiocese of Burgos, Spain | Territory Added |
| 1955 | Diocese of Segovia, Spain (Aldeavieja, Maello, and Peguerinos in Avila) | Territory Lost | Diocese of Ávila, Spain | Territory Added |
| 1955 | Diocese of Segovia, Spain (Fuentelcesped, Milagros, Perdilla, and Santa Cruz de la Salceda in Burgos) | Territory Lost | Archdiocese of Burgos, Spain | Territory Added |
| 1955 | Diocese of Ávila, Spain (9 parishes in Segovia) | Territory Lost | Diocese of Segovia, Spain | Territory Added |
| 1955 | Archdiocese of Toledo, Spain (Navahondilla in Avila) | Territory Lost | Diocese of Ávila, Spain | Territory Added |
| 1955 | Diocese of Palencia, Spain (6 parishes in Santander) | Territory Lost | Diocese of Santander, Spain | Territory Added |
| 1958 | Diocese of Chihuahua, México | Elevated | Archdiocese of Chihuahua, México | Elevated |
| 1958 | Archdiocese of Durango, México (Tamazula, San Andrés de la Sierra, Los Remedios, Topia, Canelas, Otaez, and San Dimas)
Diocese of Sinaloa, México (Elota, Cosala, San Ignacio, Concordia, Mazatlán, Rosario, and Escuinapa) | Territory Lost | Diocese of Mazatlán, Sinaloa, México | Erected |
| 1958 | Diocese of Hamilton, Ontario, Canada (Halimand)
Archdiocese of Toronto, Ontario, Canada (Lincoln and Weiland) | Territory Lost | Diocese of Saint Catharines, Ontario, Canada | Erected |
| 1958 | Diocese of Ciudad Juárez, Chihuahua, México (from Durango) | Metropolitan Changed | ||
| 1958 | Diocese of Sonora, México (from Durango) | Metropolitan Changed | ||
| 1967 | Diocese of Fort Rosebery, Zambia | Name Changed | Diocese of Mansa, Zambia | Name Changed |
| 1967 | Diocese of Abercorn, Zambia | Name Changed | Diocese of Mbala, Zambia | Name Changed |
| 1968 | Archdiocese of Ljubljana, Slovenia (became a Metropolitan) | Elevated | ||
| 1968 | Diocese of Maribor, Slovenia (from Immediately Subject) | Metropolitan Changed | ||
| 1975 | Diocese of Krishnagar, India (Bagdaha, Bangaon, and Gaighata of the 24 Parganas District) | Territory Lost | Archdiocese of Calcutta, India | Territory Added |
| 1978 | Archdiocese of Atlanta, Georgia, USA (Columbia and Jones) | Territory Lost | Diocese of Savannah, Georgia, USA | Territory Added |
| 1978 | Archdiocese of New Orleans, Louisiana, USA (Stephensville, and parts of Saint Martin and Iberia) | Territory Lost | Diocese of Houma-Thibodaux, Louisiana, USA | Territory Added |
| 1980 | Vicariate Apostolic of San Francisco Javier, Peru | Name Changed | Vicariate Apostolic of Jaén en Peru o San Francisco Javier | Name Changed |
| 1983 | Military Ordinariate of Korea, Military (as Vicariate) | Erected | ||
| 2003 | Diocese of Santa Rosa de Osos, Colombia (Ebéjico, Liborina, Peque, San Jerónimo, Sopetrán, Sabanalarga, Olaya, and part of Palmitas) | Territory Lost | Archdiocese of Santa Fe de Antioquia, Colombia | Territory Added |
| 2003 | Archdiocese of Santa Fe de Antioquia, Colombia (Murindó and Vigía del Fuerte) | Territory Lost | Diocese of Quibdó, Colombia | Territory Added |
| 2005 | Diocese of Xuân Lộc, Viet Nam (Ba Ria - Vung Tau) | Territory Lost | Diocese of Bà Rịa, Viet Nam | Erected |
| 2017 | Archdiocese of São Salvador da Bahia, Brazil (Cruz das Almas, Cabaceiras do Paraguaçu, Cachoeira, Governador Mangabeira, Maragogipe, Muritiba, Santo Amaro, São Felix, Sapeaçu, and Saubara) | Territory Lost | Diocese of Cruz das Almas, Bahia, Brazil | Erected |
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