Artrí (d. 821), son of Cathal and overking of Munster, belonged to the Éoganacht Glendamnach dynasty of north Co. Cork. His father is generally identified as Cathal (qv) son of Finguine, a very important and able king of Munster (721–42), although on chronological grounds Artrí may have been grandson rather than son of Cathal. Certainly the decades following Cathal's death witnessed disorder in the Munster overkingship, with claimants emerging from the rival dynasties of Éoganacht Áine, Éoganacht Locha Léin, and even from the Uí Fhidgeinti. Artrí emerges into history in the latter part of the eighth century; his wife is not recorded, but he had at least two sons, Tuathal and Gormán.
By the 790s Artrí had achieved sufficient power to be acknowledged as provincial overking by most of the Munster dynasties. The tract ‘De Rígaib Muman iar Cretim’ accords him a reign of twenty years. He is noted for being the first king to be ordained on Irish soil. His ordination, apparently by the bishop of Emly, is recorded at 793 in the Annals of Ulster, which state: ‘ordinatio Artroigh maic Cathail in regnum Mumen’. This was evidently connected with the promulgation of the Law of St Ailbe (qv) in Munster, which permitted the foundation of Emly to levy an ecclesiastical tax.
It seems that Artrí was deposed (820) by the powerful king Fedelmid (qv) son of Crimthann, who succeeded him in the provincial kingship. Artri's son Tuathal is recognised as king of Munster in the regnal lists, where he is accorded a reign of thirteen years, but this is difficult to reconcile with the well-documented ascendancy of Fedelmid. It is clear that Éoganacht Glendamnach went into decline, Tuathal being the last of the lineage to hold any sway at provincial level. Artrí's other son, Gormán, was ancestor of many of the later kings of Éoganacht Glendamnach.