- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°9'30"N 5°36'14"W
- Eastings/Northings: 176304, 702063
- OS Grid: NM763020
- Mapcode Local: GBR DDJF.RWZ
- Mapcode Global: WH0HN.WGNL
Location and coordinates are for the approximate centre of Eilean Ona within this administrative area.
Geographic features and populated places may cross administrative borders.