Eochaid II of Dalriada “the Crook-Nose” (Scottish Gaelic: Eochaid "Rianamhail" mac Domangairt; English: Eugene) (d. ca. 697) was king of Dál Riata (modern western Scotland) in about 697. He was the son of Domangart II, king of Dál Riata and father of Eochaid III mac Eochada.