Date | Country | Change |
| 2011 |  Netherlands | Metropolitan Archdiocese of Utrecht lost territory to Diocese of Rotterdam |
| 2011.01.15 |  England,  Scotland,  Wales | Personal Ordinariate of Our Lady of Walsingham (Anglican Rite) was established |
| 2011.01.15 |  Sierra Leone | Diocese of Bo was established (from Metropolitan Archdiocese of Freetown and Bo and became suffragan of Freetown) |
| 2011.01.15 | Sierra Leone | Metropolitan Archdiocese of Freetown and Bo was renamed as Metropolitan Archdiocese of Freetown (lost territory to establish Diocese of Bo and gained suffragan see Bo) |
| 2011.02.01 |  Bosnia and Herzegovina | Military Ordinariate of Vojni ordinarijat u Bosne i Hercegovine was established |
| 2011.02.09 |  Malawi | Diocese of Lilongwe was promoted as Metropolitan Archdiocese of Lilongwe (with suffragan sees Dedza, Karonga and Mzuzu) |
| 2011.02.11 |  Congo-Brazzaville | Apostolic Prefecture of Likouala was promoted as Diocese of Impfondo |
| 2011.03.05 |  Hungary | Diocese of Hajdúdorog (Hungarian Rite) lost territory to Apostolic Exarchate of Miskolc |
| 2011.03.12 |  Tanzania | Diocese of Kondoa was established (from Diocese of Dodoma and became suffragan of Dar-es-Salaam) |
| 2011.04.09 |  Venezuela | Apostolic Vicariate of Machiques was promoted as Diocese of Machiques (became suffragan of Maracaibo) |
| 2011.04.12 |  Angola | Diocese of Malanje was promoted as Metropolitan Archdiocese of Malanje (with suffragan sees Ndalatando and Uíje) |
| 2011.04.12 | Angola | Diocese of Saurimo was promoted as Metropolitan Archdiocese of Saurimo (with suffragan sees Dundo and Luena) |
| 2011.04.13 |  Brazil | Diocese of Passo Fundo was promoted as Metropolitan Archdiocese of Passo Fundo (with suffragan sees Erexim, Frederico Westphalen and Vacaria) |
| 2011.04.13 | Brazil | Diocese of Pelotas was promoted as Metropolitan Archdiocese of Pelotas (with suffragan sees Bagé and Rio Grande) |
| 2011.04.13 | Brazil | Diocese of Santa Maria was promoted as Metropolitan Archdiocese of Santa Maria (with suffragan sees Cachoeira do Sul, Cruz Alta, Santa Cruz do Sul, Santo Ângelo and Uruguaiana) |
| 2011.05.31 |  Kuwait,  Bahrain,  Qatar,  Saudi Arabia | Apostolic Vicariate of Kuwait was renamed as Apostolic Vicariate of Northern Arabia (gained territory from Apostolic Vicariate of Arabia) |
| 2011.05.31 |  United Arab Emirates,  Oman,  Yemen | Apostolic Vicariate of Arabia was renamed as Apostolic Vicariate of Southern Arabia (lost territory to Apostolic Vicariate of Northern Arabia) |
| 2011.06.01 | Brazil | Diocese of Naviraí was established (from Diocese of Dourados and became suffragan of Campo Grande) |
| 2011.06.10 |  Canada | Diocese of Mar Addai of Toronto (Chaldean Rite) was established (without ecclesiastical province) |
| 2011.06.17 | Brazil | Diocese of Paulo Afonso lost territory to Diocese of Juazeiro |
| 2011.07.08 |  Bangladesh | Diocese of Sylhet was established (from Metropolitan Archdiocese of Dhaka and became suffragan of Dhaka) |
| 2011.08.04 |  Azerbaijan | Mission sui juris of Baku was promoted as Apostolic Prefecture of Azerbaigian |
| 2011.10.21 |  Chile | Diocese of Arica was renamed as Diocese of San Marcos de Arica |
| 2011.10.29 |  Zambia | Diocese of Kabwe was established (from Metropolitan Archdiocese of Lusaka and Diocese of Mpika and became suffragan of Lusaka) |
| 2011.11.09 |  Argentina | Territorial Prelature of Deán Funes lost territory to Diocese of Cruz del Eje |
| 2011.11.09 | Brazil | Territorial Prelature of Óbidos was promoted as Diocese of Óbidos |
| 2011.11.21 |  Ukraine | Diocese of Ivano-Frankivsk (Ukrainian Rite) was promoted as Metropolitan Archdiocese of Ivano-Frankivsk (with suffragan see Kolomyia–Chernivtsi) |
| 2011.11.21 | Ukraine | Archdiocese of Lviv (Ukrainian Rite) was promoted as Metropolitan Archdiocese of Lviv (with suffragan sees Sambir–Drohobych, Sokal–Zhovkva and Stryj) |
| 2011.11.21 | Ukraine | Diocese of Ternopil–Zboriv (Ukrainian Rite) was promoted as Metropolitan Archdiocese of Ternopil–Zboriv (with suffragan see Bučač) |
| 2011.11.30 |  Burkina Faso | Diocese of Gaoua was established (from Diocese of Diébougou and became suffragan of Bobo-Dioulasso) |
| 2011.12.30 |  Honduras | Diocese of La Ceiba was established (from Diocese of San Pedro Sula and became suffragan of Tegucigalpa) |
