The Kings of Uisnech were of the Uí Néill and one of its major southern branches, the Clann Cholmáin. The Hill of Uisnech is located in what is now County Westmeath, and was in early historic Ireland considered as the area where all five provinces met.
A list of the kings of Uisnech is found amongst the regnal lists in The Book of Leinster. The earliest kings of Uisnech were:
Later kings of Uisnech included: