- Category: Water Feature
- Type: Island
- Latitude/Longitude: 57°50'3"N 6°33'48"W
- Eastings/Northings: 129234, 891879
- OS Grid: NG292918
- Mapcode Local: GBR B850.QGS
- Mapcode Global: WGY4T.4CV2
Location and coordinates are for the approximate centre of Sgeir In-ao within this administrative area.
Geographic features and populated places may cross administrative borders.