O'Brien of Thomond – Ó Briain

O'Brien Ó Briain are a Dalcassian clan who ruled the Kingdom of Thomond (Co. Clare and Co. Limerick) and later the Kingdom of Munster. The clan derive their name and historical important from the family of King Brian Boru. Today, the surname O'Brien is numerous across Ireland as well as in Munster.


Chief: Sir Conor Myles O'Brien, The O’Brien, Prince of Thomond, Chief of the Name, 18th Baron Inchiquin, 10th Baronet of Leamaneh.

Seat: Dromoland Castle.

Email:  chiefob@dromolandestate.com