An Triúr Deirfiúr, are a group of three peaks at the northwestern end of the Dingle Peninsula

Dingle Peninsula

The Dingle Peninsula is the northernmost of the major peninsulae in County Kerry. Its ends beyond the town of Dingle at Dunmore Head, the westernmost point of Ireland.-Name:...

 in County Kerry

County Kerry

Kerry means the "people of Ciar" which was the name of the pre-Gaelic tribe who lived in part of the present county. The legendary founder of the tribe was Ciar, son of Fergus mac Róich. In Old Irish "Ciar" meant black or dark brown, and the word continues in use in modern Irish as an adjective...

, Ireland

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

, situated just to the north of the village of Baile an Fheirtéaraigh.

The names of the little peaks are from the westerly most hill, Binn Hanrai, Binn Meanach and Binn Diarmada. Though they are called "the three sisters" none of the have a female name associated with them.