- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 52°9'42"N 4°8'46"W
- Eastings/Northings: 253295, 253675
- OS Grid: SN532536
- Mapcode Local: GBR DP.5S7F
- Mapcode Global: VH4GH.2XXN
Location and coordinates are for the approximate centre of Ffynnon-oer within this administrative area.
Geographic features and populated places may cross administrative borders.