| Bishops and Ordinaries of Wales (12) |
Archbishops (2) |
 O’Toole, Mark (61), Metropolitan Archbishop of Cardiff–Menevia (Wales) |
 Stack, George (78), Metropolitan Archbishop emeritus of Cardiff (Wales) and former Apostolic Administrator of Menevia (Wales) |
Bishops (9) |
 Brignall, Peter Malcolm (71), Bishop of Wrexham (Wales) |
 Burns, Thomas Matthew, S.M. (80), Bishop emeritus of Menevia (Wales) |
| Gemayel, Maroun-Nasser (73) (Maronite Rite), Bishop emeritus of Notre-Dame du Liban de Paris of the Maronites (France) and former Apostolic Visitator in Western and Northern Europe of the Maronites |
| Jabalé, John Mark, E.B.C. (91), Bishop emeritus of Menevia (Wales) |
| Mason, Paul James (62), Military Ordinary of Great Britain (England) |
| Nowakowski, Kenneth Anthony Adam (66) (Ukrainian Rite), Bishop of Holy Family of London of the Ukrainians (England) and Apostolic Visitator in Ireland of the Ukrainians |
| Regan, Edwin (88), Bishop emeritus of Wrexham (Wales) |
| Srampickal, Joseph (Benny Mathew) (57) (Syro-Malabar Rite), Bishop of Great Britain of the Syro-Malabars (England) |
| Waller, David Arthur (63), Bishop-Ordinary of Our Lady of Walsingham (England) |
Other Prelates (1) |
 Newton, Keith (72), Protonotary Apostolic Supernumerary and Ordinary emeritus of Our Lady of Walsingham (England) |
| Other Prelates born in Wales (2) |
 Collins, Peter Gwilym (66), Bishop of East Anglia (England) |
| Thomas, Christopher Paul (55), Priest of Nottingham (England) and General Secretary of Bishops’ Conference of England and Wales |
| Other Prelates related to Wales (7) |
 Adams, Edward Joseph (80), Titular Archbishop of Scala |
| Chomnycky, Paul Patrick, O.S.B.M. (70) (Ukrainian Rite), Bishop of Stamford of the Ukrainians (USA) |
  Gugerotti, Claudio (69), Cardinal-Deacon of S. Ambrogio della Massima, Prefect of Dicastery for the Eastern Churches, Member of Council of the Section for Relations with States and International Organisations and Grand Chancellor of Pontifical Oriental Institute |
 Lonchyna, Hlib Borys Sviatoslav, M.S.U. (70) (Ukrainian Rite), Apostolic Administrator of Saint-Vladimir-le-Grand de Paris of the Ukrainians (France) and Bishop emeritus of Holy Family of London of the Ukrainians (England) |
 Maury Buendía, Miguel (69), Titular Archbishop of Italica and Apostolic Nuncio to Great Britain |
| Mennini, Antonio (77), Titular Archbishop of Ferento |
| Moth, Charles Phillip Richard (66), Bishop of Arundel and Brighton (England) |
