Éllim was a legendary king of Ulster and High King of Ireland of the 1st century AD. He either led the revolt of the "subject peoples" against the Milesian nobility, or was their second king after Cairbre Cinnchait. During his reign Ireland was without corn, fruit, milk or fish. He was defeated by Tuathal Teachtmhar, exiled son of Fiacha Finnfolaidh.
