Catholic DiocesesinWales | ![]() |
| Former Jurisdiction | Type | Became |
| Bangor Bangoren(sis) | Diocese | Suppressed |
| Cardiff Cardiffen(sis) | Metr. Archdiocese | Now Metropolitan Archdiocese of CardiffâMenevia |
| Cardiff Cardiffen(sis) | Metr. Archdiocese | Now Metropolitan Archdiocese of CardiffâMenevia |
| England and Wales (Ukrainian Rite) | Apostolic Exarchate | Now Diocese of Holy Family of London |
| Great Britain (Ukrainian Rite) MagnĂŚ BritanniĂŚ | Apostolic Exarchate | Now Diocese of Holy Family of London |
| Great Britain | Military Vicariate | Now Military Ordinariate of Bishopric of the Forces in Great Britain |
| Llandaff Landaven(sis) | Diocese | Now Metropolitan Archdiocese of CardiffâMenevia |
| Menevia Meneven(sis) | Diocese | Suppressed into Metropolitan Archdiocese of CardiffâMenevia |
| Saint Asaph / Llanelwy Assaven(sis) | Diocese | Suppressed |
| Saint Davidâs | Diocese | Suppressed into Metropolitan Archdiocese of CardiffâMenevia |
| Wales | Apostolic Vicariate | Suppressed into Metropolitan Archdiocese of CardiffâMenevia |
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