| Country: | Scotland |
| Official Name: | Caolas |
| Gaelic Name: | An Caolas |
| Static Image Name: | Caolas Bhatarsaigh - geograph.org.uk - 1367873.jpg |
| Static Image Caption: | Road and house at Caolas |
| Language: | Scottish Gaelic |
| Language1: | English |
| Os Grid Reference: | NL629973 |
| Coordinates: | 56.944°N -7.544°W |
| Civil Parish: | Barra |
| Unitary Scotland: | Gaelic; Scottish Gaelic: [[Comhairle nan Eilean Siar]]|italic=no |
| Lieutenancy Scotland: | Western Isles |
| Constituency Scottish Parliament: | Gaelic; Scottish Gaelic: [[Na h-Eileanan an Iar (Scottish Parliament constituency)|Na h-Eileanan an Iar]]|italic=no |
| Constituency Westminster: | Gaelic; Scottish Gaelic: [[Na h-Eileanan an Iar (UK Parliament constituency)|Na h-Eileanan an Iar]]|italic=no |
| Post Town: | ISLE OF BARRA |
| Postcode Area: | HS |
| Postcode District: | HS9 |
| Dial Code: | 01871 |
Caolas (Gaelic; Scottish Gaelic: An Caolas in Gaelic; Scottish Gaelic pronounced as /ən̪ˠ ˈkʰɯːl̪ˠəs̪/), is a small settlement on the island of Vatersay, in the Outer Hebrides, Scotland. Caolas is within the parish of Barra.[1] It is the westernmost settlement in Scotland. Previously, the village on Hirta claimed this title; Hirta was also the most western settlement in the United Kingdom, which is now Belleek, County Fermanagh, Northern Ireland.
is a word (in both Scottish Gaelic and Irish) meaning "straits" and frequently rendered as "kyles" in English.