Cafodd naw adolygiad etholiadol eu cynnal gan Gomisiwn Ffiniau a Democratiaeth Leol Cymru yn ei gylch adolygu diweddaraf. Mae’r rhain yn berthnasol i Sir Gaerfyrddin, Ceredigion, Conwy, Sir Ddinbych, Gwynedd, Sir Fynwy, Sir Benfro, Powys a Thorfaen.
There are 9 electoral reviews which have been completed by the Local Democracy and Boundary Commission for Wales during their most recent cycle of reviews. These relate to the counties of Carmarthenshire, Ceredigion, Conwy, Denbighshire, Gwynedd, Monmouthshire, Pembrokeshire, Powys and Torfaen.