The Múscraighe (older spelling: Músgraige) were an important Érainn people of Munster, descending from , son of Conaire Cóem, a High King of Ireland. Closely related were the Corcu Duibne, Corcu Baiscind, both of Munster, and also the Dál Riata of Ulster and Scotland, all being referred to as the Síl Conairi in Irish and Scottish legends. A more distant ancestor was the legendary monarch Conaire Mór, son of Eterscél, son of Íar, son of Dedu mac Sin. Importantly, they acted as vassals and facilitators for the rising Eóganachta. A King of Munster from the Múscraige was Flaithbertach mac Inmainén.