1105 in Ireland

Events from the year 1105 in Ireland.

Incumbents

 * High King of Ireland: Domnall Ua Lochlainn

Events

 * Cellach Ua Sinaig inherits the position of Abbot of Armagh (the seventh in a series of members of the Ua Sinaig family, who had held the position without taking holy orders, and several of whom had been married).

Deaths

 * Muirgheas Ua Cú Ceannainn, King of Uí Díarmata.