Áed mac Néill (died 879), called Áed Findliath ("fair-grey Áed"; Modern Irish: Aodh Fionnadhliath) to distinguish him from his paternal grandfather Áed Oirdnide, was king of Ailech and High King of Ireland. He was also called Áed Olach ("The anointing one") according to Baile in Scáil, section 51. A member of the northern Uí Néill kindred of the Cenél nEógain, Áed was the son of Niall Caille.