Dauí Tenga Uma (died 500)[1] was a King of Connacht from the Uí Briúin branch of the Connachta.
Dauí Tenga Uma ("Copper-Tongue"—for the beauty of his speech) is listed in the genealogies as a great-great-great grandson of Brión, the eponymous founder of his dynasty.
)[2] Francis Byrne believes him to be a duplicate of his supposed great-great grandfather, Dauí Galach,[3] that the early Uí Briúin genealogies are fabrications and that these two were the same person.
[4] Dauí succeeded Ailill Molt of the Ui Fiachrach (died 484) as king.
Keating mentions two marital relations of his family: In 500 Daui was defeated and slain at the Battle of Segsa (Seghais or Boyle River) by his own son-in-law Muirchertach mac Ercae.