- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°59'40"N 4°48'18"W
- Eastings/Northings: 207514, 236630
- OS Grid: SN075366
- Mapcode Local: GBR CS.JJSR
- Mapcode Global: VH2N5.N4L6
Location and coordinates are for the approximate centre of Cilgwyn within this administrative area.
Geographic features and populated places may cross administrative borders.