- Category: Populated Place
- Type: Village
- Latitude/Longitude: 53°16'19"N 3°31'30"W
- Eastings/Northings: 298383, 376097
- OS Grid: SH983760
- Mapcode Local: GBR 3ZTL.LR
- Mapcode Global: WH65G.T0HV
Location and coordinates are for the approximate centre of Terfyn within this administrative area.
Geographic features and populated places may cross administrative borders.