- Category: Water Feature
- Type: Island
- Latitude/Longitude: 55°58'55"N 4°1'35"W
- Eastings/Northings: 273650, 678412
- OS Grid: NS736784
- Mapcode Local: GBR 18.W1CN
- Mapcode Global: WH4PR.3XT0
Location and coordinates are for the approximate centre of Speirs Island within this administrative area.
Geographic features and populated places may cross administrative borders.