 | 2004 | 2005 | 2006 |  |
Date | Country | Change |
| 2005.01.25 |  Albania | Diocese of Pult was suppressed (to Metropolitan Archdiocese of Shkodrë–Pult) |
| 2005.01.25 | Albania | Metropolitan Archdiocese of Shkodrë was renamed as Metropolitan Archdiocese of Shkodrë–Pult (gained territory from the suppressed Diocese of Pult and lost suffragan sees Pult, Rrëshen and Southern Albania) |
| 2005.01.25 | Albania | Archdiocese of Durrës–Tiranë was promoted as Metropolitan Archdiocese of Tiranë–Durrës (with suffragan sees Rrëshen and Southern Albania) |
| 2005.02.10 |  India | Metropolitanate sui juris of Trivandrum (Syro-Malankara Rite) was demoted as Metropolitan Archdiocese of Trivandrum (lost territory to establish Major Archdiocese of Trivandrum) |
| 2005.02.10 | India | Major Archdiocese of Trivandrum (Syro-Malankara Rite) was established (from Metropolitanate sui juris of Trivandrum) |
| 2005.03.07 |  Italy | Territorial Abbacy of San Paolo fuori le Mura was suppressed (to Papal See of Roma) |
| 2005.04.01 |  Uzbekistan | Mission sui juris of Uzbekistan was promoted as Apostolic Administration of Uzbekistan |
| 2005.05.09 | India | Diocese of Kottayam (Syro-Malabar Rite) was promoted as Metropolitan Archdiocese of Kottayam |
| 2005.05.15 | Italy | Territorial Abbacy of Montevergine lost territory to Diocese of Avellino |
| 2005.05.24 |  Costa Rica | Diocese of Cartago was established (from Metropolitan Archdiocese of San José and Diocese of Limón and became suffragan of San José) |
| 2005.06.24 | India | Diocese of Gulbarga was established (from Metropolitan Archdiocese of Hyderabad, Diocese of Belgaum and Diocese of Bellary and became suffragan of Bangalore) |
| 2005.07.05 | India | Diocese of Sindhudurg was established (from Diocese of Poona and became suffragan of Bombay) |
| 2005.07.08 |  Nigeria | Diocese of Awgu was established (from Diocese of Enugu and became suffragan of Onitsha) |
| 2005.07.20 | India | Diocese of Ajmer–Jaipur was renamed as Diocese of Ajmer (lost territory to establish Diocese of Jaipur) |
| 2005.07.20 | India | Diocese of Jaipur was established (from Diocese of Ajmer–Jaipur and became suffragan of Agra) |
| 2005.09.12 |  USA,  Canada | Apostolic Exarchate of United States of America and Canada (Armenian Rite) was promoted as Diocese of Our Lady of Nareg in New York (without ecclesiastical province) |
| 2005.09.19 |  Honduras | Diocese of Yoro was established (from Metropolitan Archdiocese of Tegucigalpa and became suffragan of Tegucigalpa) |
| 2005.09.21 |  Brazil | Diocese of Serrinha was established (from Metropolitan Archdiocese of Feira de Santana and Diocese of Paulo Afonso and became suffragan of Feira de Santana) |
| 2005.10.28 | Canada | Metropolitan Archdiocese of Gatineau–Hull was renamed as Metropolitan Archdiocese of Gatineau |
| 2005.11.22 |  Vietnam | Diocese of Bà Ria was established (from Diocese of Xuân Lôc and became suffragan of Thành-Phô Hô Chí Minh) |
| 2005.11.26 |  Netherlands | Diocese of Groningen was renamed as Diocese of Groningen–Leeuwarden |
| 2005.12.07 | India | Diocese of Itanagar was established (from Diocese of Tezpur and became suffragan of Guwahati) |
| 2005.12.07 | India | Diocese of Miao was established (from Diocese of Dibrugarh and became suffragan of Guwahati) |
| 2005.12.12 | India | Diocese of Buxar was established (from Metropolitan Archdiocese of Patna and became suffragan of Patna) |
| 2005.12.14 |  Indonesia | Diocese of Maumere was established (from Metropolitan Archdiocese of Ende and became suffragan of Ende) |
| 2005.12.14 | Nigeria | Diocese of Uromi was established (from Metropolitan Archdiocese of Benin City and became suffragan of Benin City) |
| 2005.12.15 |  Myanmar | Diocese of Pekhon was established (from Metropolitan Archdiocese of Taunggyi and became suffragan of Taunggyi) |
| 2005.12.16 |  Romania | Metropolitanate sui juris of Făgăraş şi Alba Iulia (Romanian Rite) was demoted as Metropolitan Archdiocese of Făgăraş şi Alba Iulia (lost territory to establish Major Archdiocese of Făgăraş şi Alba Iulia) |
| 2005.12.16 | Romania | Major Archdiocese of Făgăraş şi Alba Iulia (Romanian Rite) was established (from Metropolitanate sui juris of Făgăraş şi Alba Iulia) |
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