Keenaght (from Irish Cianachta 'race of Cian'[1][2]) is a barony in the mid-northerly third of County Londonderry, Northern Ireland.

[3] It connects to the north-Londonderry coastline, and is bordered by four other baronies: Coleraine to the east; Loughinsholin to the south-east; Tirkeeran to the west; and Strabane Upper to the south-west.

[4] In 681, Cenn Fáelad, king of Cianachta Glenn Geimin, along with Dungal Eilni, king of the Cruthin and Dál nAraidi, were killed at Dún Cethirinn by Máel Dúin mac Máele Fithrich of the Cenél Meic Ercae of Cenél nEógain.

[9] This act was carried out by Fiannamail ua Dúnchado who would later become king of Dál Riata, however in 700, he along with Flann mac Cinn-faelad of the Cianachta Glinne Geimin were slain in turn.

[11] An Ó Coinne (O'Quinn) is later noted in Annals of the Four Masters in 1218 as being chief of Moy Lugad, which according to the Books of Lecan and Ballymote, lay in Keenaght.