Dún Chaoin (Irish, meaning 'pleasant fort' [ˌd̪ˠuːn̪ˠ ˈxiːnʲ]), unofficially anglicized as Dunquin, is a Gaeltacht village in west County Kerry, Ireland.

Dunquin lies at the most westerly tip of the Dingle Peninsula, overlooking the Blasket Islands.

In 1588, when the Spanish Armada returned via Ireland many ships sought shelter in the Blasket Sound — the area between Dún Chaoin and the Islands — and some were wrecked there.

[5] Scenes from the 1970 film Ryan's Daughter, based on a screenplay by Robert Bolt and directed by David Lean, were shot at Coumineole Beach and Ceathrú (Caharhoo) in Dunquin.

During the 1970s Scoil Dhún Chaoin was the subject of a countywide and national campaign which featured protest marches, sit-ins and arrests.