Hildasay
| Scots name | Hildasay |
|---|---|
| Old Norse name | Hildasey |
| Meaning of name | battle island, or island of Hilda |
| Location | |
| OS grid reference | HU355403 |
| Coordinates | 60°08′N 1°22′W / 60.14°N 1.36°W |
| Physical geography | |
| Island group | Shetland |
| Area | 108 ha (267 acres) |
| Area rank | 146 |
| Highest elevation | 32 m (105 ft) |
| Administration | |
| Council area | Shetland Islands |
| Country | Scotland |
| Sovereign state | United Kingdom |
| Demographics | |
| Population | 1 |
| References | |
Hildasay (Scots: Hildasay; Old Norse: Hildisey) (from the Old Norse masculine name Hildir with ey "island"), also known as Hildisay, is an uninhabited island off the west coast of the Shetland Mainland.