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.