Dáire mac Dedad (Dáire, son of Dega) is the eponymous ancestor of the Dáirine of Munster and father of the legendary Cú Roí mac Dáire.
[1] He is probably identical with Dáire Doimthech (Sírchrechtach), an ancestor of the Corcu Loígde.
As such he is a common ancestor of several prominent dynasties of the so-called Érainn, including the Dál Fiatach of Ulster.
[2] His brother, whom Dáire is said to have succeeded as King of Munster, was Íar mac Dedad, ancestor of Eterscél Mór, father of the legendary monarch Conaire Mór.
[4] According to genealogical schemes deriving from the compilations and works of Duald Mac Firbis and others, Dáire's family can be reconstructed as follows:[5]