| Date | Country | Change |
| 2015.01.19 | Diocese of Asmara (Eritrean Rite) was promoted as Metropolitanate sui juris of Asmara (with suffragan sees Barentu, Keren and Segheneity) | |
| 2015.01.19 | Diocese of Bahir Dar–Dessie (Ethiopic Rite) was established (from Metropolitanate sui juris of Addis Abeba and became suffragan of Addis Abeba) | |
| 2015.01.26 | Metropolitan Archdiocese of Cashel was renamed as Metropolitan Archdiocese of Cashel and Emly (lost title of Emly) | |
| 2015.03.19 | Diocese of Nogales was established (from Metropolitan Archdiocese of Hermosillo and became suffragan of Hermosillo) | |
| 2015.03.20 | Diocese of Hajdúdorog (Hungarian Rite) was promoted as Metropolitanate sui juris of Hajdúdorog (with suffragan sees Miskolc and Nyíregyháza and lost territory to establish Diocese of Nyíregyháza) | |
| 2015.03.20 | Apostolic Exarchate of Miskolc (Hungarian Rite) was promoted as Diocese of Miskolc (became suffragan of Hajdúdorog) | |
| 2015.03.20 | Diocese of Nyíregyháza (Hungarian Rite) was established (from Diocese of Hajdúdorog and became suffragan of Hajdúdorog) | |
| 2015.03.26 | Apostolic Exarchate of Saint Ephrem of Khadki (Syro-Malankara Rite) was established (without ecclesiastical province) | |
| 2015.03.26 | Diocese of Saint John Chrysostom of Gurgaon (Syro-Malankara Rite) was established (without ecclesiastical province) | |
| 2015.08.06 | Apostolic Exarchate of Canada (Syro-Malabar Rite) was established | |
| 2015.10.08 | Diocese of San Jacinto de Yaguachi was renamed as Diocese of San Jacinto | |
| 2015.12.03 | Diocese of Guasdualito was established (from Diocese of Barinas and Diocese of San Fernando de Apure and became suffragan of Mérida) | |
| 2015.12.11 | Diocese of Kamyanets-Podilskyi (Ukrainian Rite) was established (from Metropolitan Archdiocese of Ternopil–Zboriv and became suffragan of Ternopil–Zboriv) | |
| 2015.12.11 | Major Archdiocese of Kyiv–Halyč–Kamyanets (Ukrainian Rite) was renamed as Major Archdiocese of Kyiv–Halyč | |
| 2015.12.22 | Apostolic Exarchate of United States of America (Syro-Malankara Rite) was promoted as Diocese of Saint Mary, Queen of Peace, of the United States of America and Canada (gained territory of Canada and without ecclesiastical province) | |
| 2015.12.29 | Diocese of Barisal was established (from Diocese of Chittagong and became suffragan of Dhaka) |
© 2026 GCatholic.org