Donngal mac Laidcnén (died 761) was a king of the Uí Cheinnselaig of South Leinster.
Donngal faced an attack by the Osraige under their king Anmchad mac Con Cherca.
[3] He was succeeded by his brother Dub Calgaid mac Laidcnén (died 769).
[4] His son Cellach Tosach mac Donngaile (died 809) was also a King of Uí Cheinnselaig.
[citation needed] This biography of a member of an Irish royal house is a stub.