Cormacan Eigeas mac Maelbrighdhe was Chief Ollam of Ireland.
He was chief poet to Muirchertach mac Néill, King of Ulster.
He wrote a poem celebrating the king's tour of Ireland in 941–942, amongst others.
[1] Edward O'Reilly gives a full account of these in his Irish Writers, LXXXVI sq.
His obituary is given in the Annals of the Four Masters as follows: M946.7 Cormacan, son of Maelbrighdhe, the chief poet, the play-mate of Niall Glundubh, died.