In Wales, a process has been underway over the last four years, to look at the electoral wards for local government in Wales – for the 22 principal local authorities.
Yng Nghymru, mae proses wedi bod ar waith dros y pedair blynedd diwethaf, i edrych ar wardiau etholiadol llywodraeth leol yng Nghymru – ar gyfer y 22 prif awdurdod lleol.