- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°58'8"N 4°6'14"W
- Eastings/Northings: 255550, 232133
- OS Grid: SN555321
- Mapcode Local: GBR DQ.L4MC
- Mapcode Global: VH4HG.TS50
Location and coordinates are for the approximate centre of Nant-y-ffîn within this administrative area.
Geographic features and populated places may cross administrative borders.