- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 52°9'39"N 3°40'32"W
- Eastings/Northings: 285477, 252748
- OS Grid: SN854527
- Mapcode Local: GBR Y9.5WDV
- Mapcode Global: VH5D6.7YP5
Location and coordinates are for the approximate centre of Abergwesyn within this administrative area.
Geographic features and populated places may cross administrative borders.