Jurisdiction | Cathedral | Type |
| Aberdeen | Cathedral of St Mary of the Assumption  Aberdeen, Aberdeen City, Scotland  |  Cathedral |
| Aberdeen | Dornoch Cathedral of St Mary and St Gilbert Dornoch, Highland, Scotland |  Former Cathedral |
| Aberdeen | Former Cathedral of St Magnus Kirkwall, Orkney Islands, Scotland | Former Cathedral |
| Aberdeen | Former Cathedral of the Holy Trinity Elgin, Moray, Scotland |  Former Cathedral |
| Aberdeen | Spynie Cathedral Elgin, Moray, Scotland | Former Cathedral |
| Achonry | Cathedral of the Annunciation and St Nathy Ballaghaderreen, Roscommon (Ros Comáin), Connachta, Ireland  | Cathedral, Parish |
| Achonry | Church of St Crumnathy Achonry, Sligo (Sligeach), Connachta, Ireland | Former Cathedral |
| Ardagh | St Mel’s Cathedral Longford, Longford (An Longfort), Leinster, Ireland | Cathedral, Parish |
| Ardagh | Cathedral of St Mel Ardagh, Longford (An Longfort), Leinster, Ireland | Former Cathedral |
| Ardagh | Monastery of Clonmacnoise Clonmacnoise, Offaly (Uíbh Fhailí), Leinster, Ireland | Former Cathedral, Shrine |
| Argyll and The Isles | St Columba’s Cathedral Oban, Argyll and Bute, Scotland | Cathedral |
| Argyll and The Isles | Former Cathedral of St. Columban Skye, Argyll and Bute, Scotland | Former Cathedral |
| Argyll and The Isles | Former Cathedral of St Moluag of Lismore Oban, Argyll and Bute, Scotland | Former Cathedral |
| Argyll and The Isles | Iona Abbey of St. Columban Iona, Argyll and Bute, Scotland | Former Cathedral |
| Armagh | Cathedral Church of St Patrick Armagh, Armagh, Northern Ireland  | Cathedral, Parish |
| Armagh | St Patrick’s Church of Ireland Cathedral Armagh, Armagh, Northern Ireland |  Former Cathedral |
| Arundel and Brighton | Cathedral Church of Our Lady and St Philip Howard Arundel, West Sussex, England  | Cathedral |
| Arundel and Brighton | Former Cathedral of the Holy Trinity Chichester, West Sussex, England | Former Cathedral |
| Birmingham | Metropolitan Cathedral Basilica of St Chad Birmingham, Birmingham, England |  Cathedral, Minor Basilica |
| Birmingham | Christ Church Cathedral Oxford, Oxfordshire, England | Former Cathedral |
| Birmingham | Former Cathedral of Christ and the Blessed Mary the Virgin Worcester, Worcestershire, England | Former Cathedral |
| Birmingham | Former Cathedral of St Michael Coventry, Coventry, England | Former Cathedral |
| Birmingham | Former Cathedral of the Blessed Virgin Mary and St Chad Lichfield, Staffordshire, England | Former Cathedral |
| Bishopric of the Forces in Great Britain | Cathedral Church of St Michael and St George Aldershot, Hampshire, England | Cathedral |
| Brentwood | Cathedral Church of St Mary and St Helen Brentwood, Essex, England | Cathedral |
| Cardiff–Menevia | Metropolitan Cathedral Church of St David Cardiff, Cardiff, Wales  | Cathedral |
| Cardiff–Menevia | Co-Cathedral Church of St Joseph Swansea, Swansea, Wales |  Co-Cathedral |
| Cardiff–Menevia | Church of St Michael and All Angels Belmont, Herefordshire, England |  Former Cathedral, Abbatial, Parish, Shrine |
| Cardiff–Menevia | Former Cathedral of Ss Peter and Paul, St Dyfrig, St Telio and St Euddogwy Llandaff, Cardiff, Wales | Former Cathedral |
| Cardiff–Menevia | Former Cathedral of St David St Davids, Pembrokeshire, Wales | Former Cathedral |
| Cardiff–Menevia | Former Cathedral of the Blessed Virgin Mary and St Ethelbert the King Hereford, Herefordshire, England | Former Cathedral |
| Cashel and Emly | Cathedral of the Assumption Thurles, Tipperary (Tiobraid Árann), Munster, Ireland | Cathedral, Parish |
| Cashel and Emly | Church of St Ailbe Emly, Tipperary (Tiobraid Árann), Munster, Ireland | Former Cathedral, Parish |
| Cashel and Emly | Former Cathedral of St Patrick Cashel, Tipperary (Tiobraid Árann), Munster, Ireland | Former Cathedral |
| Clifton | Cathedral Church of Ss Peter and Paul Bristol, City of Bristol, England | Cathedral |
| Clifton | Cathedral of the Holy and Undivided Trinity Bristol, City of Bristol, England | Former Cathedral |
| Clifton | Former Cathedral of St Andrew Wells, Somerset, England | Former Cathedral |
| Clifton | Former Cathedral of the Blessed Virgin Mary Salisbury, Wiltshire, England | Former Cathedral |
| Clifton | Old Sarum Cathedral Salisbury, Wiltshire, England | Former Cathedral |
| Clifton | Former Pro-Cathedral of the Holy Apostles Bristol, City of Bristol, England | Pro-Cathedral |
| Clogher | St Macartan’s Cathedral Monaghan, Monaghan (Muineachán), Ulster, Ireland | Cathedral, Parish |
| Clogher | Cathedral of St Macartan Clogher, Tyrone, Northern Ireland | Former Cathedral |
| Clonfert | Cathedral of St Brendan Loughrea, Galway (Gaillimh), Connachta, Ireland | Cathedral, Parish |
| Clonfert | Cathedral of St Brendan Clonfert, Galway (Gaillimh), Connachta, Ireland | Former Cathedral |
| Cloyne | Cathedral of St Colman Cobh, Cork (Corcaigh), Munster, Ireland | Cathedral, Parish |
| Cloyne | Cathedral of St Colman Cloyne, Cork (Corcaigh), Munster, Ireland | Former Cathedral |
| Cork and Ross | Cathedral of St Mary and St Anne Cork, Cork (Corcaigh), Munster, Ireland | Cathedral, Parish |
| Cork and Ross | Cathedral of St Patrick Skibbereen, Cork (Corcaigh), Munster, Ireland | Cathedral, Parish |
| Cork and Ross | Cathedral of St Fachtna Rosscarbery, Cork (Corcaigh), Munster, Ireland | Former Cathedral |
| Derry | St Eugene’s Cathedral Londonderry, Londonderry, Northern Ireland | Cathedral, Parish |
| Derry | Former Cathedral of St Lurach Maghera, Londonderry, Northern Ireland | Former Cathedral |
| Down and Connor | St Peter’s Cathedral Belfast, Antrim, Northern Ireland | Cathedral |
| Down and Connor | Cathedral of St Patrick Downpatrick, Down, Northern Ireland | Former Cathedral |
| Dromore | St Patrick and St Colman’s Cathedral Newry, Down, Northern Ireland | Cathedral |
| Dromore | Church of St Mary Newry, Down, Northern Ireland | Former Cathedral |
| Dromore | Cathedral of Christ the Redeemer Dromore, Down, Northern Ireland | Former Cathedral |
| Dublin | St Mary’s Cathedral Dublin, Dublin (Baile Átha Cliath), Leinster, Ireland | Cathedral |
| Dublin | Cathedral of St Patrick Dublin, Dublin (Baile Átha Cliath), Leinster, Ireland | Former Cathedral |
| Dublin | Former Cathedral of Ss Peter and Paul Glendalough, Wicklow (Cill Mhantáin), Leinster, Ireland | Former Cathedral |
| Dublin | Former Cathedral of the Holy Trinity Dublin, Dublin (Baile Átha Cliath), Leinster, Ireland | Former Cathedral |
| Dunkeld | Cathedral of St Andrew Dundee, Dundee City, Scotland | Cathedral |
| Dunkeld | Brechin Cathedral Brechin, Angus, Scotland | Former Cathedral |
| Dunkeld | Cathedral Church of St Blaan and St Laurence Dunblane, Stirling, Scotland | Former Cathedral |
| Dunkeld | Former Cathedral of St Columba Dunkeld, Dundee City, Scotland | Former Cathedral |
| East Anglia | Cathedral of St John the Baptist Norwich, Norfolk, England | Cathedral |
| East Anglia | Cathedral Church of St Peter, St Paul and St Andrew Peterborough, Peterborough, England | Former Cathedral |
| East Anglia | Former Cathedral of the Holy Trinity Ely, Cambridgeshire, England | Former Cathedral |
| East Anglia | Former Cathedral of the Holy Trinity Norwich, Norfolk, England | Former Cathedral |
| Elphin | Cathedral of the Immaculate Conception Sligo, Sligo (Sligeach), Connachta, Ireland | Cathedral, Parish |
| Elphin | Former Cathedral of St Mary Elphin, Roscommon (Ros Comáin), Connachta, Ireland | Former Cathedral |
| Ferns | St Aidan’s Cathedral Enniscorthy, Wexford (Loch Garman), Leinster, Ireland | Cathedral, Parish |
| Ferns | Cathedral of St Aidan Ferns, Wexford (Loch Garman), Leinster, Ireland | Former Cathedral |
| Galloway | Cathedral of St Margaret of Scotland Ayr, South Ayrshire, Scotland | Cathedral |
| Galloway | Former Cathedral of St. Ninian Whithorn, Dumfries and Galloway, Scotland | Former Cathedral |
| Galloway | Former Cathedral of the Good Shepherd Ayr, South Ayrshire, Scotland | Former Cathedral |
| Galloway | Former Pro-Cathedral of St Andrew Dumfries, Dumfries and Galloway, Scotland | Former Cathedral |
| Galway and Kilmacduagh | Cathedral of Our Lady Assumed into Heaven and St Nicholas Galway, Galway (Gaillimh), Connachta, Ireland | Cathedral |
| Galway and Kilmacduagh | Collegiate Church of St Nicholas Galway, Galway (Gaillimh), Connachta, Ireland | Former Cathedral, Parish |
| Galway and Kilmacduagh | Former Cathedral of St Colman Kilmacduagh, Galway (Gaillimh), Connachta, Ireland | Former Cathedral |
| Galway and Kilmacduagh | Former Cathedral of St Fachanan Kilfenora, Clare (An Clár), Munster, Ireland | Former Cathedral |
| Glasgow | St Andrew’s Metropolitan Cathedral Glasgow, Glasgow City, Scotland | Cathedral |
| Glasgow | St Mungo’s Cathedral Glasgow, Glasgow City, Scotland | Former Cathedral |
| Great Britain (Syro-Malabar Rite) | Syro-Malabar Cathedral of St Alphonsa Preston, Lancashire, England |  Cathedral |
| Hallam | Cathedral Church of St Marie Sheffield, Sheffield, England | Cathedral |
| Hexham and Newcastle | Cathedral Church of St Mary Newcastle upon Tyne, Newcastle upon Tyne, England | Cathedral |
| Hexham and Newcastle | Former Cathedral of the Blessed Virgin Mary and St Cuthbert Durham, Durham, England | Former Cathedral,  World Heritage Site |
| Hexham and Newcastle | Church of St Mary and St Cuthbert Chester-le-Street, Durham, England | Former Cathedral |
| Hexham and Newcastle | Former Cathedral of St Andrew Hexham, Northumberland, England | Former Cathedral |
| Holy Family of London (Ukrainian Rite) | Ukrainian Catholic Cathedral of the Holy Family in Exile London, Westminster, England | Cathedral |
| Kerry | Cathedral of St Mary of the Assumption Killarney, Kerry (Ciarraí), Munster, Ireland | Cathedral, Parish |
| Kerry | Former Cathedral of St Brendan Ardfert, Kerry (Ciarraí), Munster, Ireland | Former Cathedral |
| Kerry | Former Cathedral of the Holy Trinity Aghadoe, Kerry (Ciarraí), Munster, Ireland | Former Cathedral |
| Kildare and Leighlin | Cathedral of the Assumption Carlow, Carlow (Ceatharlach), Leinster, Ireland | Cathedral |
| Kildare and Leighlin | Cathedral of St Brigid Kildare, Kildare (Cill Dara), Leinster, Ireland | Former Cathedral |
| Kildare and Leighlin | Cathedral of St Lazarian Old Leighlin, Carlow (Ceatharlach), Leinster, Ireland | Former Cathedral |
| Killala | St Muredach’s Cathedral Ballina, Mayo (Maigh Eo), Connachta, Ireland | Cathedral, Parish |
| Killala | Cathedral of St Patrick Killala, Mayo (Maigh Eo), Connachta, Ireland | Former Cathedral |
| Killaloe | Cathedral of Ss Peter and Paul Ennis, Clare (An Clár), Munster, Ireland | Cathedral |
| Killaloe | Cathedral of St Flannan Killaloe, Clare (An Clár), Munster, Ireland | Former Cathedral |
| Killaloe | Former Cathedral of St Cronan Roscrea, Tipperary (Tiobraid Árann), Munster, Ireland | Former Cathedral |
| Killaloe | Former Cathedral of St Senan Inniscathy, Clare (An Clár), Munster, Ireland | Former Cathedral |
| Kilmore | Cathedral of St Patrick and St Felim Cavan, Cavan (An Cabhán), Ulster, Ireland | Cathedral, Parish |
| Kilmore | Former Cathedral of St Felim Kilmore, Cavan (An Cabhán), Ulster, Ireland | Former Cathedral |
| Lancaster | Cathedral Church of St Peter Lancaster, Lancashire, England | Cathedral |
| Lancaster | Former Cathedral of the Holy Trinity Carlisle, Cumbria, England | Former Cathedral |
| Leeds | Cathedral Church of St Anne Leeds, Leeds, England | Cathedral |
| Limerick | Cathedral of St John the Baptist Limerick, Limerick (Luimneach), Munster, Ireland | Cathedral, Parish |
| Limerick | Cathedral of St Mary Limerick, Limerick (Luimneach), Munster, Ireland | Former Cathedral |
| Liverpool | Metropolitan Cathedral of Christ the King Liverpool, Liverpool, England | Cathedral |
| Liverpool | Co-Cathedral of St Mary of the Isle Douglas, Isle of Man  | Co-Cathedral, Parish |
| Liverpool | Former Cathedral of St German Peel, Isle of Man | Former Cathedral |
| Meath | Cathedral of Christ the King Mullingar, Westmeath (An Iarmhí), Leinster, Ireland | Cathedral, Parish |
| Meath | Church of the Immaculate Conception Navan, Meath (An Mhí), Leinster, Ireland | Former Cathedral, Parish |
| Meath | Church of St John Clonard, Meath (An Mhí), Leinster, Ireland | Former Cathedral |
| Meath | Former Cathedral of Ss Peter and Paul Trim, Meath (An Mhí), Leinster, Ireland | Former Cathedral |
| Middlesbrough | Cathedral Church of St Mary Coulby Newham, Middlesbrough, England | Cathedral |
| Middlesbrough | Church of St George York, York, England | Former Cathedral |
| Middlesbrough | Church of St Wilfrid York, York, England | Former Cathedral |
| Middlesbrough | Former Cathedral of St Peter York, York, England | Former Cathedral |
| Motherwell | Cathedral of Our Lady of Good Aid Motherwell, North Lanarkshire, Scotland | Cathedral |
| Northampton | Cathedral of Our Lady Immaculate and St Thomas of Canterbury Northampton, Northamptonshire, England | Cathedral |
| Nottingham | Cathedral Church of St Barnabas Nottingham, Nottingham, England | Cathedral |
| Nottingham | Former Cathedral of the Blessed Virgin Mary Lincoln, Lincolnshire, England | Former Cathedral |
| Ossory | Cathedral of St Mary of the Assumption Kilkenny, Kilkenny (Cill Chainnigh), Leinster, Ireland | Cathedral |
| Ossory | Cathedral of St Canice Kilkenny, Kilkenny (Cill Chainnigh), Leinster, Ireland | Former Cathedral |
| Our Lady of Walsingham (Anglican Rite) | Principal Church of Our Lady of the Assumption and St Gregory London, Westminster, England | Cathedral |
| Our Lady of Walsingham (Anglican Rite) | Birnie Kirk Birnie, Moray, Scotland | Former Cathedral |
| Paisley | St Mirin’s Cathedral Paisley, Renfrewshlre, Scotland | Cathedral |
| Plymouth | Cathedral Church of St Mary and St Boniface Plymouth, Plymouth, England | Cathedral |
| Plymouth | Former Cathedral of St Peter Exeter, Devon, England | Former Cathedral |
| Plymouth | St Germans Priory St Germans, Cornwall, England | Former Cathedral |
| Portsmouth | Cathedral Church of St John the Evangelist Portsmouth, Portsmouth, England | Cathedral |
| Portsmouth | Former Cathedral of the Holy Trinity, SS Peter and Paul and St Swithun Winchester, Hampshire, England | Former Cathedral |
| Raphoe | Cathedral of Saints Eunan and Columba Letterkenny, Donegal (Dún na nGall), Ulster, Ireland | Cathedral |
| Raphoe | Cathedral of Saint Eunan Raphoe, Donegal (Dún na nGall), Ulster, Ireland | Former Cathedral |
| Saint Andrews and Edinburgh | Metropolitan Cathedral of Our Lady of the Assumption Edinburgh, City of Edinburgh, Scotland | Cathedral,  National Shrine, World Heritage Site |
| Saint Andrews and Edinburgh | Former Cathedral of St Andrew St Andrews, Fife, Scotland | Former Cathedral |
| Salford | Cathedral Church of St John the Evangelist Salford, Salford, England | Cathedral |
| Shrewsbury | Cathedral Church of Our Lady Help of Christians and St Peter of Alcantara Shrewsbury, Shropshire, England | Cathedral |
| Shrewsbury | St John the Baptist Church Chester, Cheshire, England | Former Cathedral |
| Southwark | Metropolitan Cathedral of St George London, Southwark, England | Cathedral |
| Southwark | Former Cathedral of Christ the Saviour Canterbury, Kent, England | Former Cathedral, World Heritage Site |
| Southwark | Former Cathedral of the Blessed Virgin Mary Rochester, Medway, England | Former Cathedral |
| Tuam | Cathedral of the Assumption of the Blessed Virgin Mary Tuam, Galway (Gaillimh), Connachta, Ireland | Cathedral, Parish |
| Tuam | Cathedral of St Mary Tuam, Galway (Gaillimh), Connachta, Ireland | Former Cathedral |
| Tuam | Former Cathedral of St Brendan Annaghdown, Galway (Gaillimh), Connachta, Ireland | Former Cathedral |
| Tuam | Former Cathedral of St Colman Mayo, Mayo (Maigh Eo), Connachta, Ireland | Former Cathedral |
| Waterford and Lismore | Cathedral of the Most Holy Trinity Waterford, Waterford (Port Láirge), Munster, Ireland | Cathedral |
| Waterford and Lismore | Cathedral of St Carthage Lismore, Waterford (Port Láirge), Munster, Ireland | Former Cathedral |
| Waterford and Lismore | Christ Church Cathedral Waterford, Waterford (Port Láirge), Munster, Ireland | Former Cathedral |
| Waterford and Lismore | Former Cathedral of St Declan Ardmore, Waterford (Port Láirge), Munster, Ireland | Former Cathedral |
| Westminster | Metropolitan Cathedral of the Most Precious Blood London, Westminster, England | Cathedral |
| Wrexham | Cathedral Church of Our Lady of Sorrows Wrexham, Wrexham, Wales | Cathedral |
| Wrexham | Former Cathedral of St Asaph St. Asaph, Denbighshire, Wales | Former Cathedral |
| Wrexham | Former Cathedral of St Deiniol Bangor, Gwynedd, Wales | Former Cathedral |
