Eochaid may have been king of the Picts from 878 to 885 or 889. He was a son of Run, King of Strathclyde, and his mother may have been a daughter of Cináed mac Ailpín. His kingship is usually portrayed as some form of joint rule with Giric.

However there is no consensus as to whether Eochaid was king of the Picts or king of Strathclyde or no king at all.

Dunbarton Castle