Daire Cerbba (or Cerba, Cearba, Cearb) was an Irish dynast of uncertain origins, named in many early and late sources as the grandfather of the semi-mythological Mongfind and Crimthann mac Fidaig, and the most frequently named early ancestor of the historical Uí Liatháin and Uí Fidgenti. All of these are historically associated with the province of Munster, but according to the early manuscript Rawlinson B 502, Dáire Cerbba was born in Brega, County Meath, and got his epithet from a location there. This is otherwise unexplained. He may or may not have been a relative of Conall Corc, the founder of the Eóganachta dynasty.