| Date | From | To | ||
|---|---|---|---|---|
| unknown | Titular See of Alton | Established | ||
| unknown | Titular See of Grass Valley | Established | ||
| unknown | Titular See of Jamestown | Established | ||
| unknown | Titular See of Kearney | Established | ||
| unknown | Titular See of Lead | Established | ||
| unknown | Titular See of Leavenworth | Established | ||
| unknown | Titular See of Natchitoches | Established | ||
| unknown | Titular See of Nesqually | Established | ||
| unknown | Titular See of Quincy | Established | ||
| unknown | Titular See of Sault Sainte Marie in Michigan | Established | ||
| unknown | Titular See of Vincennes | Established | ||
| unknown | Titular See of Concordia | Established | ||
| 16 Jan | Diocese of Cienfuegos-Santa Clara, Cuba (Ciénaga de Zapata) | Territory Lost | Diocese of Matanzas, Cuba | Territory Added |
| 28 Jan | Vicariate Apostolic of Machiques, Venezuela (Páez and Northern part of Mara along with Gonzalo Antonio) | Territory Lost | Archdiocese of Maracaibo, Venezuela | Territory Added |
| 28 Jan | Archdiocese of Maracaibo, Venezuela (Parts of Encontrados and Udón Pérez) | Territory Lost | Vicariate Apostolic of Machiques, Venezuela | Territory Added |
| 3 Feb | Archdiocese of Tamale, Ghana (Western Gonja and Bole) | Territory Lost | Diocese of Damongo, Ghana | Erected |
| 3 Feb | Diocese of Yola, Nigeria (Taraba) | Territory Lost | Diocese of Jalingo, Nigeria | Erected |
| 3 Mar | Diocese of Kumasi, Ghana (Afígya-Sekyere, Asante-Akim North, Asante-Akim South, Ejisu-Juabeng, Ejura-Sekyedumasi, Kwabre, Sekyere East, and Sekyere West)
Diocese of Sunyani, Ghana (Sene and Atebubu) | Territory Lost | Diocese of Konongo-Mampong, Ghana | Erected |
| 3 Mar | Diocese of Kumasi, Ghana (Adansi East, Adansi West, Amansie East, Amansie West, and Bosomtwe-Kwanwoma) | Territory Lost | Diocese of Obuasi, Ghana | Erected |
| 3 Mar | Diocese of Oyo, Nigeria (Osun except for Aiyedade, Aiyedire, Irewole, Iwo, and Ola-Oluwa) | Territory Lost | Diocese of Osogbo, Nigeria | Erected |
| 21 Mar | Diocese of Reno-Las Vegas, Nevada, USA (Clark, Lincoln, White Pine, Nye, and Esmeralda) | Territory Lost | Diocese of Las Vegas, Nevada, USA | Erected |
| 21 Mar | Diocese of Reno-Las Vegas, Nevada, USA | Name Changed | Diocese of Reno, Nevada, USA | Name Changed |
| 31 Mar | Archdiocese of Trnava, Slovakia | Name Changed | Archdiocese of Bratislava-Trnava, Slovakia | Name Changed |
| 31 Mar | Diocese of Košice, Slovakia | Elevated | Archdiocese of Košice, Slovakia | Elevated |
| 31 Mar | Diocese of Rožňava, Slovakia (from Trnava) | Metropolitan Changed | ||
| 31 Mar | Diocese of Spiš, Slovakia (from Trnava) | Metropolitan Changed | ||
| 1 Apr | Diocese of Cienfuegos-Santa Clara, Cuba (Villa Clara and Sancti Spiritus except San Francisco de Paula and Santísima Trinidad (in Trinidad)) | Territory Lost | Diocese of Santa Clara, Cuba | Erected |
| 1 Apr | Diocese of Cienfuegos-Santa Clara, Cuba | Name Changed | Diocese of Cienfuegos, Cuba | Name Changed |
| 1 Apr | Diocese of Daltonganj, India (Hazaribag, Kodarma, Chatra, and part of Bokaro) | Territory Lost | Diocese of Hazaribag, India | Erected |
| 1 Apr | Archdiocese of Ranchi, India (Khunti and Torpa) | Territory Lost | Diocese of Khunti, India | Erected |
| 10 Apr | Delegation to Pacific Ocean | Established | Nunciature to Kiribati, Pacific (Oceania) | Established |
| 20 Apr | Archdiocese of Berlin, Germany (Boundaries adjusted)
Archdiocese of Hamburg, Germany (Boundaries adjusted) | Territory Added | ||
| 18 May | Eparchy of Tellicherry (Syro-Malabar), India | Elevated | Archeparchy of Tellicherry (Syro-Malabar), India | Elevated |
| 18 May | Eparchy of Trichur (Syro-Malabar), India | Elevated | Archeparchy of Trichur (Syro-Malabar), India | Elevated |
| 18 May | Diocese of Palghat (Syro-Malabar), India (from Ernakulam) | Metropolitan Changed | ||
| 18 May | Diocese of Irinjalakuda (Syro-Malabar), India (from Ernakulam) | Metropolitan Changed | ||
| 18 May | Eparchy of Mananthavady (Syro-Malabar), India (from Ernakulam) | Metropolitan Changed | ||
| 18 May | Diocese of Thamarasserry (Syro-Malabar), India (from Ernakulam) | Metropolitan Changed | ||
| 31 May | Territorial Prelature of Tunis, Tunisia | Elevated | Diocese of Tunis, Tunisia | Elevated |
| 10 Jun | Diocese of Abomey, Benin (Dassa-Zoumé, Bante, Savalou, Savé, Glazoue, and Ouesse) | Territory Lost | Diocese of Dassa-Zoumé, Benin | Erected |
| 10 Jun | Diocese of Natitingou, Benin (Djougou, Bassila, Copargo, and Ouake) | Territory Lost | Diocese of Djougou, Benin | Erected |
| 10 Jun | Archdiocese of Bangui, Central African Republic (Mbaiki) | Territory Lost | Diocese of Mbaïki, Central African Republic | Erected |
| 14 Jun | Diocese of Maitland, Australia | Name Changed | Diocese of Maitland-Newcastle, Australia | Name Changed |
| 15 Jun | Diocese of Barbastro, Spain | Name Changed | Diocese of Barbastro-Monzón, Spain | Name Changed |
| 16 Jun | Nunciature to Andorra | Established | ||
| 17 Jun | Diocese of Calabozo, Venezuela | Elevated | Archdiocese of Calabozo, Venezuela | Elevated |
| 17 Jun | Diocese of Valle de la Pascua, Venezuela (from Ciudad Bolívar) | Metropolitan Changed | ||
| 17 Jun | Diocese of San Fernando de Apure, Venezuela (from Caracas, Santiago de Venezuela) | Metropolitan Changed | ||
| 28 Jun | Diocese of Texcoco, México, México (Ecatepec de Morelos)
Archdiocese of Tlalnepantla, México, México (Isla Municipal de Ixhuatepec) | Territory Lost | Diocese of Ecatepec, México, México | Erected |
| 10 Jul | Diocese of Guwahati, India | Elevated | Archdiocese of Guwahati, India | Elevated |
| 10 Jul | Diocese of Imphal, India | Elevated | Archdiocese of Imphal, India | Elevated |
| 10 Jul | Archdiocese of Jos, Nigeria (Kaura, Jema'a, and Jaba)
Archdiocese of Kaduna, Nigeria (Kaum, Lere, and Zangón Kataf) | Territory Lost | Diocese of Kafanchan, Nigeria | Erected |
| 10 Jul | Diocese of Makurdi, Nigeria (Otukpo, Ado, Apa, Ogbadibo, Oju, and Okpokwu) | Territory Lost | Diocese of Otukpo, Nigeria | Erected |
| 10 Jul | Diocese of Dibrugarh, India (from Shillong) | Metropolitan Changed | ||
| 10 Jul | Diocese of Diphu, India (from Shillong) | Metropolitan Changed | ||
| 10 Jul | Diocese of Tezpur, India (from Shillong) | Metropolitan Changed | ||
| 10 Jul | Diocese of Kohima, India (from Shillong) | Metropolitan Changed | ||
| 12 Jul | Diocese of Río Cuarto, Argentina | Name Changed | Diocese of Villa de la Concepción del Río Cuarto, Argentina | Name Changed |
| 15 Jul | Nunciature to Eritrea | Established | ||
| 25 Jul | Diocese of Alajuela, Costa Rica (San Carlos, Los Chiles, and Sarapiquí)
Diocese of Tilarán, Costa Rica (Upala and Guatuso) | Territory Lost | Diocese of Ciudad Quesada, Costa Rica | Erected |
| 12 Sep | Nunciature to Namibia | Established | ||
| 18 Oct | Institute of Schönstatt Diocesan Fathers | Approbation | ||
| 31 Oct | Military Ordinariate of Venezuela, Military | Erected | ||
| 2 Nov | Diocese of Galle, Sri Lanka (Sabaragamuwa) | Territory Lost | Diocese of Ratnapura, Sri Lanka | Erected |
| 6 Nov | Eparchy of Our Lady of Deliverance of Newark (Syrian), USA | Erected | ||
| 6 Nov | Eparchy of Nuestra Señora de los Mártires del Libano en México (Maronite) | Erected | ||
| 17 Nov | Archdiocese of Chihuahua, México (Cuauhtémoc, Riva Palacio, and Cusihuiriachi)
Territorial Prelature of Madera, Chihuahua, México | Elevated | Diocese of Cuauhtémoc-Madera, Chihuahua, México (Name Changed and Elevated to a Diocese) | Elevated |
| 25 Nov | Apostolic Exarchate of Great Ukraine (Byzantine)
Archeparchy of Lviv (Ukrainian), Ukraine Apostolic Exarchate of Volyn, Polesia and Podlasie (Byzantine), Ukraine | Territory Lost | Archiepiscopal Exarchate of Kyiv-Vyshhorod (Ukrainian), Ukraine | Erected |
| 2 Dec | Diocese of Liepāja, Latvia (Griva, Ilukste, Jekabpils, Skaistkalne, and Jelgava) | Territory Lost | Diocese of Jelgava, Latvia | Erected |
| 2 Dec | Archdiocese of Riga, Latvia (Daugavpils, Kräslava, Dagda, Aglona, Preili, Livani, Varak¡ani, Rëzekne, Ludza, Nautrëni (Rogovka), and Vilaka) | Territory Lost | Diocese of Rēzekne-Aglona, Latvia | Erected |
| 6 Dec | Diocese of Nakuru, Kenya (Kericho) | Territory Lost | Diocese of Kericho, Kenya | Erected |
| 9 Dec | Archdiocese of Santiago de Cuba (Granma) | Territory Lost | Diocese of Santisimo Salvador de Bayamo y Manzanillo, Cuba | Erected |
| 14 Dec | Delegation to Mozambique | Elevated | Nunciature to Mozambique | Elevated |
| 15 Dec | Diocese of Ilorin, Nigeria (New Bussa, Agwara, Shagunu, and Babana)
Diocese of Minna, Nigeria (Rijau, Magama, Mariga, Zuru, Sakaba, Danko Wasugu, and part of Wushishi) Diocese of Sokoto, Nigeria (Yauri, Ngaski, and part of Bagudo) | Territory Lost | Prefecture Apostolic of Kontagora, Nigeria | Erected |
| 15 Dec | Mission "Sui Iuris" of Kano, Nigeria | Elevated | Vicariate Apostolic of Kano, Nigeria | Elevated |
| 15 Dec | Diocese of Meru, Kenya (Isiolo) | Territory Lost | Vicariate Apostolic of Isiolo, Kenya | Erected |
| 21 Dec | Eparchy of Asmara (Ethiopian), Eritrea (Gasc-Setit and Barca) | Territory Lost | Eparchy of Barentu (Eritrean), Eritrea | Erected |
| 21 Dec | Eparchy of Asmara (Ethiopian), Eritrea (Sahel and Senhit) | Territory Lost | Eparchy of Keren (Eritrean), Eritrea | Erected |
| 21 Dec | Congregation of Saint Theresa of the Child Jesus “Little Flower” | Approbation | ||
| 21 Dec | Vicariate Apostolic of Asmara, Ethiopia | Suppressed | ||
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