1584 in Ireland

Events from the year 1584 in Ireland.

Incumbent

 * Monarch: Elizabeth I

Events

 * July – English government commissions a survey of Munster, following the Desmond Rebellions. Sir Valentine Browne is appointed to the task. It becomes known as the Peyton Survey after Sir Christopher Peyton
 * The Spanish Arch is built in Galway.
 * Perrott subdivides Cavan into seven baronies.
 * Richard Stanihurst's history De rebus in Hibernia gestis is published by Christophe Plantin in Antwerp.

Deaths

 * 20 June – Dermot O'Hurley, Roman Catholic Archbishop of Cashel, put to death for treason. (b. c. 1530)
 * Margaret Ball, died of deprivation in the dungeons of Dublin Castle, beatified in 1992 (b. 1515)
 * Sir Henry Colley, or Cowley, an Irish soldier and landowner.