Gilla Aenghus Ua Chlúmháin (died 1143) was an Irish poet.
Gilla Aenghus Ua Chlúmháin, ollamh of Connacht in poetry, who died in 1143.
A later bearer of the name, who died in 1438, is listed as O'Clumain, Chief Poet to O'Hara, a Chief of the Name in County Sligo.
The name was later rendered as Ó Chlúmháin and Cloonan.
His son, Aindileas Ua Chlúmháin, was chief poet of Connacht upon his death in 1170.