1404 in Ireland

Events from the year 1404 in Ireland.

Incumbent

 * Lord: Henry IV

Deaths

 * Flann Óc mac Séoan Ó Domhnalláin was Ollamh Síol Muireadaigh
 * John Colton, Archbishop of Armagh
 * John Keppock, a judge of the late fourteenth century, who held the offices of Lord Chief Justice of Ireland and Chief Baron of the Irish Exchequer.