- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 52°42'53"N 4°6'7"W
- Eastings/Northings: 258096, 315089
- OS Grid: SH580150
- Mapcode Local: GBR 8R.20LV
- Mapcode Global: WH56R.Y1R2
Location and coordinates are for the approximate centre of Barmouth Bay within this administrative area.
Geographic features and populated places may cross administrative borders.