1167 in Ireland

Incumbents

• High King: Ruaidrí Ua Conchobair

  Events

• August – Diarmait Mac Murchada, exiled King of Leinster, returns from Wales with a force of Flemings under Richard fitz Godbert de Roche of Rhos and retakes control of the Uí Ceinnselaig, presaging the Norman invasion of Ireland, but fails to take Waterford.
• Muirchertach Mac Lochlainn, High King of Ireland, presides over an assembly of laity and clergy of Leath Cuinn at Áth Buide Tlachtga ; marches to Armagh; divides Tír Eoghain between Niall Mac Lochlainn and Áed Ua Néill; and holds an Óenach Tailten.
• Completion of Derbforgaill's Nun's Church at Clonmacnoise by Conchobar ua Cellaig, king of the Uí Maine, to replace a wooden oratory.
• Death of Uada Ua Con Ceanainn, King of Uí Díarmata; he is perhaps succeeded by Cú Ceanain Ó Con Ceanainn.
• Death of Toirdelbhach MacDiarmaida Ó Briain, King of Thomond; he is succeeded by his son Muirchertach.
• The Barnwells arrived in Ireland with Strongbow in 1167 and had settled in Berehaven in Munster.