Catholic DiocesesinEngland | ![]() |
| Former Jurisdiction | Type | Became |
| Bath | Diocese | Suppressed |
| Bath | Diocese | Suppressed |
| Bath and Glastonbury | Diocese | Suppressed |
| Bath and Wells Bathonien(sis) et Wellen(sis) | Diocese | Suppressed |
| Beverley / Beverlacum Beverlacen(sis) | Diocese | Now and Titular Episcopal See of Beverley |
| Birmingham Birminghamien(sis) | Diocese | Now Metropolitan Archdiocese of Birmingham |
| Bristol | Diocese | Suppressed |
| Canterbury Cantuarien(sis) | Metr. Archdiocese | Suppressed |
| Canterbury Cantuarien(sis) | Diocese | Suppressed |
| Cardiff Cardiffen(sis) | Metr. Archdiocese | Now Metropolitan Archdiocese of Cardiff–Menevia |
| Cardiff Cardiffen(sis) | Metr. Archdiocese | Now Metropolitan Archdiocese of Cardiff–Menevia |
| Carlisle Carleolen(sis) | Diocese | Suppressed |
| Central District | Apostolic Vicariate | Now Metropolitan Archdiocese of Birmingham |
| Chester | Diocese | Suppressed into |
| Chichester Cicestren(sis) | Diocese | Suppressed |
| Cornwall Cornubien(sis) | Diocese | Now Diocese of Exeter and Titular Episcopal See of Saint German’s |
| Coventry Conventren(sis) | Diocese | Suppressed |
| Coventry and Lichfield Conventren(sis) et Lichefelden(sis) | Diocese | Suppressed |
| Crediton | Diocese | Suppressed |
| Cunecaster / Cuncacestre / Cuneceaster Cuncacestren(sis) / Sancti Cuthberti | Diocese | Now and Titular Episcopal See of Cunecaster |
| Dorchester / Lindsey | Diocese | Suppressed into |
| Dorchester | Diocese | Suppressed into |
| Dorchester | Diocese | Suppressed into |
| Dunwich / East Anglia | Diocese | Now Diocese of East Anglia |
| Durham Dunelmen(sis) | Diocese | Suppressed |
| Eastern District | Diocese | Now Diocese of Northampton |
| Elmham | Diocese | Now Diocese of East Anglia and Titular Episcopal See of Elmham |
| Ely Elien(sis) | Diocese | Suppressed |
| England | Apostolic Vicariate | Now Metropolitan Archdiocese of Westminster |
| England and Wales (Ukrainian Rite) | Apostolic Exarchate | Now Diocese of Holy Family of London |
| Exeter Exonien(sis) | Diocese | Suppressed |
| Gloucester | Diocese | Suppressed |
| Great Britain (Ukrainian Rite) Magnæ Britanniæ | Apostolic Exarchate | Now Diocese of Holy Family of London |
| Great Britain | Military Vicariate | Now Military Ordinariate of Bishopric of the Forces in Great Britain |
| Hereford | Diocese | Suppressed |
| Hexham Hagulstaden(sis) | Diocese | Now |
| Hexham | Diocese | Now |
| Lancashire District | Apostolic Vicariate | Now Metropolitan Archdiocese of Liverpool |
| Leicester / Lindine | Diocese | Suppressed into |
| Lichfield Lichefelden(sis) | Metr. Archdiocese | Now and Titular Episcopal See of Mercia |
| Lichfield Lichefelden(sis) | Diocese | Now and Titular Episcopal See of Mercia |
| Lichfield Lichefelden(sis) | Diocese | Now and Titular Episcopal See of Mercia |
| Lincoln Lincolnen(sis) | Diocese | Suppressed into |
| Lindisfarne / Lindisfarna Lindisfarnen(sis) | Abbacy nullius | Now and Titular Episcopal See of Lindisfarne |
| Liverpool Liverpolitan(us) | Diocese | Now Metropolitan Archdiocese of Liverpool |
| Llandaff Landaven(sis) | Diocese | Now Metropolitan Archdiocese of Cardiff–Menevia |
| London Londonien(sis) | Diocese | Now Metropolitan Archdiocese of Westminster |
| London District | Apostolic Vicariate | Now Metropolitan Archdiocese of Westminster |
| Mercia | Diocese | Now and Titular Episcopal See of Mercia |
| Midland District | Apostolic Vicariate | Now Metropolitan Archdiocese of Birmingham |
| Newport / Neoportus Neoporten(sis) | Diocese | Now and Titular Episcopal See of Newport |
| Newport and Menevia | Diocese | Now and Titular Episcopal See of Newport |
| Northern District | Apostolic Vicariate | Now |
| Norwich Norwicen(sis) | Diocese | Now Diocese of East Anglia |
| Oxford | Diocese | Suppressed |
| Peterborough | Diocese | Suppressed |
| Ramsbury | Diocese | Now Diocese of Sherborne and Titular Episcopal See of Ramsbury |
| Rochester Roffen(sis) | Diocese | Suppressed |
| Salisbury / Sarum Saresberien(sis) | Diocese | Suppressed |
| Sarum | Diocese | Suppressed |
| Selsey / Selsea Sælesien(sis) | Diocese | Now and Titular Episcopal See of Selsey |
| Sherborne | Diocese | Suppressed into |
| Southwark Southvarcen(sis) | Diocese | Now Metropolitan Archdiocese of Southwark |
| Thetford | Diocese | Now Diocese of East Anglia |
| Wales District | Apostolic Vicariate | Now and Titular Episcopal See of Newport |
| Wells | Diocese | Suppressed |
| Western District | Apostolic Vicariate | Now Diocese of Clifton |
| Winchester Wintonien(sis) | Diocese | Suppressed |
| Worcester Wigornien(sis) | Diocese | Suppressed |
| York Eboracen(sis) | Metr. Archdiocese | Suppressed |
| York Eboracen(sis) | Diocese | Suppressed |
| Yorkshire District | Apostolic Vicariate | Now and Titular Episcopal See of Beverley |
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