- Category: Water Feature
- Type: Island
- Latitude/Longitude: 56°43'26"N 5°14'1"W
- Eastings/Northings: 202241, 763817
- OS Grid: NN022638
- Mapcode Local: GBR FBGY.FFJ
- Mapcode Global: WH1G8.K8Y4
Location and coordinates are for the approximate centre of Sgeir Chomhnard within this administrative area.
Geographic features and populated places may cross administrative borders.