Alpin II of Dalriada, also known as Alpin mac Eochaid was the father of Kenneth I of Scotland and Donald I of Scotland who united the Kingdom of the Scots and the Picts.

Little more is known about Alpin than his father Eochaid IV, who has been called in some acounts as the King "of Scotland". Alpin was certainly dead by 840, when his son took the kingship of Dalriata. A late source states that he died in 834 fighting the Picts in Galloway. He did not succeed to the kingship.

He married a Scottish princess, who name is now no longer known, and had his two sons by her.

Preceded by:
Eoganan
List of Kings of Dalriada Succeeded by:
Kenneth I of Scotland