Dub-Indrecht mac Cathail (died 768)[1] was a King of Connacht from the Uí Briúin branch of the Connachta.
He was the son of Cathal mac Muiredaig Muillethan (died 735), a previous king.
[2] He was of the Síl Cathail sept of the Ui Briun and ruled from 764 to 768.
In 766, Dub-Indrecht defeated the Conmhaícne Cúile Tuireadh at the Battle of Sruthair.
His grandson, Fergus mac Fothaid (died 843), was a later king of Connacht.