| Date | Country | Change |
| 2011 | Metropolitan Archdiocese of Utrecht lost territory to Diocese of Rotterdam | |
| 2011.01.15 | Personal Ordinariate of Our Lady of Walsingham (Anglican Rite) was established | |
| 2011.01.15 | Diocese of Bo was established (from Metropolitan Archdiocese of Freetown and Bo and became suffragan of Freetown) | |
| 2011.01.15 | 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 | Military Ordinariate of Vojni ordinarijat u Bosne i Hercegovine was established | |
| 2011.02.09 | Diocese of Lilongwe was promoted as Metropolitan Archdiocese of Lilongwe (with suffragan sees Dedza, Karonga and Mzuzu) | |
| 2011.02.11 | Apostolic Prefecture of Likouala was promoted as Diocese of Impfondo | |
| 2011.03.05 | Diocese of Hajdúdorog (Hungarian Rite) lost territory to Apostolic Exarchate of Miskolc | |
| 2011.03.12 | Diocese of Kondoa was established (from Diocese of Dodoma and became suffragan of Dar-es-Salaam) | |
| 2011.04.09 | Apostolic Vicariate of Machiques was promoted as Diocese of Machiques (became suffragan of Maracaibo) | |
| 2011.04.12 | Diocese of Malanje was promoted as Metropolitan Archdiocese of Malanje (with suffragan sees Ndalatando and Uíje) | |
| 2011.04.12 | Diocese of Saurimo was promoted as Metropolitan Archdiocese of Saurimo (with suffragan sees Dundo and Luena) | |
| 2011.04.13 | Diocese of Passo Fundo was promoted as Metropolitan Archdiocese of Passo Fundo (with suffragan sees Erexim, Frederico Westphalen and Vacaria) | |
| 2011.04.13 | Diocese of Pelotas was promoted as Metropolitan Archdiocese of Pelotas (with suffragan sees Bagé and Rio Grande) | |
| 2011.04.13 | 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 | Apostolic Vicariate of Kuwait was renamed as Apostolic Vicariate of Northern Arabia (gained territory from Apostolic Vicariate of Arabia) | |
| 2011.05.31 | Apostolic Vicariate of Arabia was renamed as Apostolic Vicariate of Southern Arabia (lost territory to Apostolic Vicariate of Northern Arabia) | |
| 2011.06.01 | Diocese of Naviraí was established (from Diocese of Dourados and became suffragan of Campo Grande) | |
| 2011.06.10 | Diocese of Mar Addai of Toronto (Chaldean Rite) was established (without ecclesiastical province) | |
| 2011.06.17 | Diocese of Paulo Afonso lost territory to Diocese of Juazeiro | |
| 2011.07.08 | Diocese of Sylhet was established (from Metropolitan Archdiocese of Dhaka and became suffragan of Dhaka) | |
| 2011.08.04 | Mission sui juris of Baku was promoted as Apostolic Prefecture of Azerbaigian | |
| 2011.10.21 | Diocese of Arica was renamed as Diocese of San Marcos de Arica | |
| 2011.10.29 | Diocese of Kabwe was established (from Metropolitan Archdiocese of Lusaka and Diocese of Mpika and became suffragan of Lusaka) | |
| 2011.11.09 | Territorial Prelature of Deán Funes lost territory to Diocese of Cruz del Eje | |
| 2011.11.09 | Territorial Prelature of Óbidos was promoted as Diocese of Óbidos | |
| 2011.11.21 | Diocese of Ivano-Frankivsk (Ukrainian Rite) was promoted as Metropolitan Archdiocese of Ivano-Frankivsk (with suffragan see Kolomyia–Chernivtsi) | |
| 2011.11.21 | Archdiocese of Lviv (Ukrainian Rite) was promoted as Metropolitan Archdiocese of Lviv (with suffragan sees Sambir–Drohobych, Sokal–Zhovkva and Stryj) | |
| 2011.11.21 | Diocese of Ternopil–Zboriv (Ukrainian Rite) was promoted as Metropolitan Archdiocese of Ternopil–Zboriv (with suffragan see Bučač) | |
| 2011.11.30 | Diocese of Gaoua was established (from Diocese of Diébougou and became suffragan of Bobo-Dioulasso) | |
| 2011.12.30 | Diocese of La Ceiba was established (from Diocese of San Pedro Sula and became suffragan of Tegucigalpa) |
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