Aillil mac Dúngaile Eilni (died 690) was a Dal nAraide king of the Cruithne. He was the son of Dúngal Eilni mac Scandail (died 681), a previous king.[1] He ruled from 682-690.
In the 6th and 7th centuries the Dal nAraide were part of a confederation of Cruithne tribes in Ulaid (Ulster) and were the dominant members. Ailill belonged to a branch of this family settled in Mag nEinli, a plain between the Bann and Bush in County Antrim. He is styled King of the Cruithne in the Fragmentary Annals' of Ireland.[2] The annals record that Ailill was killed but the circumstances are not mentioned.[3]
His brother Cú Chuarán mac Dúngail Eilni (died 708) was also King of Dal nAraide as well as all Ulaid as was his son Cathussach mac Ailello (died 749).