| Scottish Gaelic name | Theiliseigh |
|---|---|
| Meaning of name | Old Norse: island of the caves |
 The Sound of Gighay looking northwest from Càrais on Hellisay | |
| Location | |
  Hellisay Hellisay shown within the Outer Hebrides | |
| OS grid reference | NF756040 |
| Coordinates | 57°01′N 7°21′W / 57.01°N 7.35°W |
| Physical geography | |
| Island group | Uists and Barra |
| Area | 142 ha (9⁄16 sq mi) |
| Area rank | 127= [1] |
| Highest elevation | Meall Meadhonach 79 m (259 ft) |
| Administration | |
| Council area | Na h-Eileanan Siar |
| Country | Scotland |
| Sovereign state | United Kingdom |
| Demographics | |
| Population | 0 |
 | |
| References | [2][3][4] |
Hellisay (Scottish Gaelic: Theiliseigh) is a currently uninhabited island and is one of ten islands in the Sound of Barra, a Site of Community Importance for conservation in the southern Outer Hebrides of Scotland. The narrow Sound of Gighay lies between Hellisay and its neighbouring island.
- ^ Area and population ranks: there are c. 300 islands over 20 ha in extent and 93 permanently inhabited islands were listed in the 2011 census.
- ^ National Records of Scotland (15 August 2013). "Appendix 2: Population and households on Scotland's Inhabited Islands" (PDF). Statistical Bulletin: 2011 Census: First Results on Population and Household Estimates for Scotland Release 1C (Part Two) (PDF) (Report). SG/2013/126. Retrieved 14 August 2020.
- ^ Haswell-Smith (2004) pp. 226-28
- ^ Ordnance Survey. OS Maps Online (Map). 1:25,000. Leisure.