 | 2018 | 2019 | 2020 |  |
Date | Country | Change |
| 2019 |  Indonesia | Diocese of Pangkal-Pinang was renamed as Diocese of Pangkalpinang |
| 2019 |  Spain | Titular Episcopal See of Valpuesta was suppressed |
| 2019.04.03 |  Peru | Territorial Prelature of Santiago Apóstol de Huancané was established (from Territorial Prelature of Ayaviri and Territorial Prelature of Juli and became suffragan of Arequipa) |
| 2019.05.30 |  Colombia | Apostolic Vicariate of San Vicente del Caguán was promoted as Diocese of San Vicente del Caguán (became suffragan of Ibagué) |
| 2019.06.01 |  Kazakhstan,  Kyrgyzstan,  Tajikistan,  Turkmenistan,  Uzbekistan | Apostolic Administration of Kazakhstan and Central Asia (Kazakh Rite) was established |
| 2019.06.28 |  Iraq | Diocese of Adiabene (Syriac Rite) was established (from Archdiocese of Mossul and without ecclesiastical province) |
| 2019.07.10 |  Brazil | Territorial Prelature of Cristalândia was promoted as Diocese of Cristalândia (exchanged territory with Diocese of Miracema do Tocantins) |
| 2019.07.10 | Brazil | Diocese of Miracema do Tocantins exchanged territory with Territorial Prelature of Cristalândia |
| 2019.07.11 |  Italy | Apostolic Exarchate of Italy (Ukrainian Rite) was established |
| 2019.07.13 | Colombia | Diocese of Florencia was promoted as Metropolitan Archdiocese of Florencia (with suffragan sees Mocoa–Sibundoy and San Vicente del Caguán) |
| 2019.09.11 |  Timor-Leste | Diocese of Díli was promoted as Metropolitan Archdiocese of Díli (with suffragan sees Baucau and Maliana) |
| 2019.09.28 |  Mexico | Diocese of Azcapotzalco was established (from Metropolitan Archdiocese of México and became suffragan of México) |
| 2019.09.28 | Mexico | Diocese of Iztapalapa was established (from Metropolitan Archdiocese of México and became suffragan of México) |
| 2019.09.28 | Mexico | Diocese of Toluca was promoted as Metropolitan Archdiocese of Toluca (with suffragan sees Atlacomulco, Cuernavaca and Tenancingo) |
| 2019.09.28 | Mexico | Diocese of Xochimilco was established (from Metropolitan Archdiocese of México and became suffragan of México) |
| 2019.10.04 |  Argentina | Archdiocese of Mercedes–Luján was promoted as Metropolitan Archdiocese of Mercedes–Luján (with suffragan sees Merlo–Moreno, Nueve de Julio and Zárate–Campana) |
| 2019.10.11 |  Bulgaria | Apostolic Exarchate of Sofia (Bulgarian Rite) was promoted as Diocese of Saint John XXIII of Sofia (without ecclesiastical province) |
| 2019.11.06 | Brazil | Territorial Prelature of Alto Xingu–Tucumã was established (from Diocese of Marabá and Territorial Prelature of Xingu and became suffragan of Santarém) |
| 2019.11.06 | Brazil | Diocese of Santarém was promoted as Metropolitan Archdiocese of Santarém (with suffragan sees Óbidos, Xingu–Altamira, Alto Xingu–Tucumã and Itaituba) |
| 2019.11.06 | Brazil | Territorial Prelature of Xingu was promoted as Diocese of Xingu–Altamira (lost territory to Diocese of Marabá, lost territory to establish Territorial Prelature of Alto Xingu–Tucumã and became suffragan of Santarém) |
| 2019.11.23 |  India | Apostolic Exarchate of Saint Ephrem of Khadki (Syro-Malankara Rite) was promoted as Diocese of Saint Ephrem of Khadki |
| 2019.12.20 |  Syria | Titular Metropolitan See of Apamea in Syria (Greek-Melkite Rite) was demoted as Titular Episcopal See of Apamea in Syria |
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