- Category: Water Feature
- Type: Bay
- Latitude/Longitude: 59°7'35"N 3°19'53"W
- Eastings/Northings: 323875, 1027370
- OS Grid: HY238273
- Mapcode Local: GBR L44M.2JK
- Mapcode Global: WH691.SWP0
Location and coordinates are for the approximate centre of Birsay Bay within this administrative area.
Geographic features and populated places may cross administrative borders.