Caolas Scottish Gaelic: An Caolas
Road and house at Caolas
Caolas Location within Scotland
Language	Scottish Gaelic English
OS grid reference	NL629973
Civil parish	Barra
Council area	Comhairle nan Eilean Siar
Lieutenancy area	Western Isles
Country	Scotland
Sovereign state	United Kingdom
Post town	ISLE OF BARRA
Postcode district	HS9
Dialling code	01871
Police	Scotland
Fire	Scottish
Ambulance	Scottish
UK Parliament	Na h-Eileanan an Iar
Scottish Parliament	Na h-Eileanan an Iar
List of places UK Scotland 56°56′38″N 7°32′38″W / 56.944°N 7.544°W / 56.944; -7.544

Caolas (Scottish Gaelic: An Caolas [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.

Caolas is a word (in both Scottish Gaelic and Irish) meaning "straits" and frequently rendered as "kyles" in English.