Sárán mac Cóelbad (flourished circa third quarter of 5th century) was a Dal nAraide king in the time of Saint Patrick.
[citation needed] Sárán mac Cóelbad was second son of Cáelbad and was King of Ulster for 26 years before he was ousted (c. 357) by the three brothers known as the Three Collas.
[citation needed] Sárán mac Cóelbad, as the last king of Ulster of the Irian line, was removed to the Barony of Iveagh, where he became a Cruithin political figure and patriarch of the MacAonghusa (McGuinness) family.
[citation needed] Olcán, an Irish saint with a monastery at Armoy, reputedly agreed to baptise Sárán to save lives.
Accordingly, some of the Irish historical annals record that Olcan's monastery was raided by a king of Dál Riata, later by Cucuaran, and finally by Eochaid, who destroyed all but the stump of its round tower.