Cináed mac Artgaile (died 792)[1] was a King of Connacht from the Uí Briúin branch of the Connachta.
He was the son of Artgal mac Cathail (died 791), a previous king.
Also, in 787, the Ui Fiachrach Muaide slaughtered the Uí Briúin of Umall and slew their king Flathgal son of Flannabra.
Another battle among the Connachta is reported in 789 at Druim Góise where Fogartach mac Cathail, another uncle of Cinaed was defeated and fled.
In 792 Cinaed was defeated and slain by Muirgius mac Tommaltaig at the Battle of Sruth Cluana Argai (Cloonargid, Roscommon Co.) from which date the annals say Muirgius reign began.