Mac Comhaltan Ua Cleirigh, King of Uí Fiachrach Aidhne, fl. 964.
Mac Comhaltan was an early member of the Ó Cléirigh family.
According to the Annals of the Four Masters, sub anno 964:
A victory was gained by Comhaltan Ua Cleirigh, i.e. lord of Ui-Fiachrach-Aidhne, and by Maelseachlainn, son of Arcda, over Fearghal Ua Ruairc, where seven hundred were lost, together with Toichleach Ua Gadhra, lord of South Luighne.
He may have been a brother of Eoghan Ua Cleirigh, Bishop of Connaught, who died in 967.
A close relative was Giolla Ceallaigh mac Comhaltan, from whom descend the family of Kilkelly.