 | 1992 | 1993 | 1994 |  |
Date | Country | Change |
| 1993.03.22 |  Cameroon | Diocese of Edéa was established (from Metropolitan Archdiocese of Douala and became suffragan of Douala) |
| 1993.03.22 | Cameroon | Diocese of Eséka was established (from Metropolitan Archdiocese of Douala and became suffragan of Douala) |
| 1993.03.22 |  Myanmar | Diocese of Mawlamyine was established (from Metropolitan Archdiocese of Yangon and became suffragan of Yangon) |
| 1993.04.05 |  Indonesia | Diocese of Palangkaraya was established (from Diocese of Banjarmasin and became suffragan of Pontianak) |
| 1993.04.20 |  Ukraine | Diocese of Kolomyia–Chernivtsi (Ukrainian Rite) was established (from Diocese of Ivano-Frankivsk) |
| 1993.04.20 | Ukraine | Diocese of Sambir–Drohobych (Ukrainian Rite) was established (from Major Archdiocese of Lviv–Halyč–Kamyanets) |
| 1993.04.20 | Ukraine | Diocese of Ternopil (Ukrainian Rite) was established (from Major Archdiocese of Lviv–Halyč–Kamyanets) |
| 1993.04.20 | Ukraine | Diocese of Zboriv (Ukrainian Rite) was established (from Major Archdiocese of Lviv–Halyč–Kamyanets) |
| 1993.04.23 |  Marshall Islands | Apostolic Prefecture of Marshall Islands was restored (from Diocese of Carolines–Marshalls and became suffragan of Agaña) |
| 1993.04.23 |  Micronesia,  Palau | Diocese of Carolines–Marshalls was renamed as Diocese of Caroline Islands (lost territory to establish Apostolic Prefecture of Marshall Islands) |
| 1993.05.28 |  India | Diocese of Gumla was established (from Metropolitan Archdiocese of Ranchi and became suffragan of Ranchi) |
| 1993.05.28 | India | Diocese of Simdega was established (from Metropolitan Archdiocese of Ranchi and became suffragan of Ranchi) |
| 1993.05.31 |  Czechia | Diocese of Hradec Králové lost territory to Diocese of České Budějovice |
| 1993.05.31 | Czechia | Diocese of Litoměřice exchanged territory with Metropolitan Archdiocese of Praha |
| 1993.05.31 | Czechia | Diocese of Plzeň was established (from Metropolitan Archdiocese of Praha, Diocese of České Budějovice and Diocese of Litoměřice and became suffragan of Praha) |
| 1993.05.31 | Czechia | Metropolitan Archdiocese of Praha exchanged territory with Diocese of České Budějovice and Diocese of Litoměřice |
| 1993.05.31 | Czechia | Diocese of České Budějovice exchanged territory with Metropolitan Archdiocese of Praha |
| 1993.05.31 |  Hungary | Diocese of Debrecen–Nyíregyháza was established (from Metropolitan Archdiocese of Eger and Diocese of Szeged–Csanád and became suffragan of Eger) |
| 1993.05.31 | Hungary | Metropolitan Archdiocese of Eger lost territory to Diocese of Szeged–Csanád and Diocese of Vác |
| 1993.05.31 | Hungary | Metropolitan Archdiocese of Esztergom was renamed as Metropolitan Archdiocese of Esztergom–Budapest (gained territory from Diocese of Székesfehérvár and Diocese of Vác, exchanged territory with Diocese of Győr and lost suffragan sees Szombathely, Vác and Veszprém) |
| 1993.05.31 | Hungary | Diocese of Győr exchanged territory with Metropolitan Archdiocese of Esztergom, Diocese of Székesfehérvár and Territorial Abbacy of Pannonhalma |
| 1993.05.31 | Hungary | Metropolitan Archdiocese of Kalocsa was renamed as Metropolitan Archdiocese of Kalocsa–Kecskemét (gained territory from Diocese of Vác and exchanged territory with Diocese of Pécs) |
| 1993.05.31 | Hungary | Diocese of Kaposvár was established (from Diocese of Veszprém and became suffragan of Veszprém) |
| 1993.05.31 | Hungary | Territorial Abbacy of Pannonhalma exchanged territory with Diocese of Győr |
| 1993.05.31 | Hungary | Diocese of Pécs exchanged territory with Metropolitan Archdiocese of Kalocsa |
| 1993.05.31 | Hungary | Diocese of Székesfehérvár lost territory to Metropolitan Archdiocese of Esztergom–Budapest |
| 1993.05.31 | Hungary | Diocese of Veszprém was promoted as Metropolitan Archdiocese of Veszprém (with suffragan sees Kaposvár and Szombathely and lost territory to establish Diocese of Kaposvár) |
| 1993.05.31 | Hungary | Diocese of Vác lost territory to Metropolitan Archdiocese of Esztergom–Budapest and Metropolitan Archdiocese of Kalocsa–Kecskemét |
| 1993.07.01 | India | Diocese of Srikakulam was established (from Diocese of Visakhapatnam and became suffragan of Hyderabad) |
| 1993.07.10 |  Paraguay | Territorial Prelature of Alto Paraná was promoted as Diocese of Alto Paraná |
| 1993.07.22 |  Argentina | Diocese of Alto Valle del Río Negro was established (from Diocese of Viedma and became suffragan of Bahía Blanca) |
| 1993.07.22 | Argentina | Diocese of San Carlos de Bariloche was established (from Diocese of Viedma and became suffragan of Bahía Blanca) |
| 1993.08.14 | Ukraine | Apostolic Administration of Zakarpattia was established (from Diocese of Satu Mare) |
| 1993.10.18 |  Kenya | Diocese of Homa Bay was established (from Diocese of Kisii and became suffragan of Kisumu) |
| 1993.10.18 |  Madagascar | Diocese of Port-Bergé was established (from Diocese of Mahajanga and became suffragan of Antsiranana) |
| 1993.10.28 |  Moldova | Apostolic Administration of Moldova was established (from Diocese of Iaşi and Diocese of Tiraspol) |
| 1993.11.17 |  Guinea | Apostolic Prefecture of Kankan was promoted as Diocese of Kankan (became suffragan of Conakry) |
| 1993.12.06 |  Mozambique | Diocese of Gurúè was established (from Diocese of Quelimane and became suffragan of Beira) |
| 1993.12.18 |  Panama | Diocese of Penonomé was established (from Metropolitan Archdiocese of Panamá and became suffragan of Panamá) |
| 1993.12.20 |  Mexico | Apostolic Vicariate of Tarahumara was promoted as Diocese of Tarahumara |
| 1993.12.30 |  Georgia,  Armenia | Apostolic Administration of Caucasus was established (from Diocese of Tiraspol) |
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