- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°57'47"N 4°33'27"W
- Eastings/Northings: 224385, 232518
- OS Grid: SN243325
- Mapcode Local: GBR D4.LD60
- Mapcode Global: VH2N9.YXG9
Location and coordinates are for the approximate centre of Rhos-y-llyn within this administrative area.
Geographic features and populated places may cross administrative borders.