- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 52°38'35"N 4°6'43"W
- Eastings/Northings: 257201, 307154
- OS Grid: SH572071
- Mapcode Local: GBR 8Q.6J6D
- Mapcode Global: WH56Y.TT3G
Location and coordinates are for the approximate centre of Llangelynin within this administrative area.
Geographic features and populated places may cross administrative borders.