Domnall Mór Ua Briain, or Domnall Mór mac Toirrdelbaig Uí Briain, was King of Thomond in Ireland from 1168 to 1194 and a claimant to the title King of Munster. He was also styled King of Limerick, a title belonging to the O'Brien dynasty since Brian Boru's sacking of the Hiberno-Norse city state after the Battle of Sulcoit in the 10th century.
