Conchobhar mac Toirdhealbaig Ó Briain

Connor O'Brien, King of Thomond
Connor O'Brien, King of Thomond
King of Thomond
Reign	1528-1540
Predecessor	Toirdelbhach Donn MacTadhg Ó Briain
Successor	Murrough O'Brien
Died	1540
Spouses	Anabella Burke; Ellice née Baccagh
Issue	Donough O'Brien, 2nd Earl of Thomond; Sir Donald O'Brien; Sir Turlogh O'Brien; Teige O'Brien; Murrough O'Brien; Mortogh O'Brien;
House	Ua Briain
Father	Toirdhealbhach Donn Ó Briain
Mother	Raghnait MacNamara

Connor O'Brien, King of Thomond (Irish: Conchobhar Ó Briain; fl. 1528 until his death in 1540) was the second to last King of Thomond.