1623 in Ireland

Events from the year 1623 in Ireland.

Incumbent

 * Monarch: James I

Events

 * January 21 – Viscount Falkland, England's Lord Deputy of Ireland, issues a proclamation ordering all Roman Catholic priests to leave Ireland.
 * June 20 – order issued requiring civic officials to take the Oath of Supremacy and enforcing excommunication against those who have relapsed.
 * June 29 – Malcolm Hamilton is consecrated Church of Ireland Archbishop of Cashel.

Honours

 * February 4 – the Talbot Baronetcy, of Carton in the County of Kildare, is created in the Baronetage of Ireland for the lawyer and politician William Talbot.
 * February 21 – the Barnewall Baronetcy, of Crickstown Castle in the County of Meath, is created in the Baronetage of Ireland for Patrick Barnewall.
 * May 2 – the Stewart Baronetcy, of Ramelton in the County of Donegal, is created in the Baronetage of Ireland for the soldier William Stewart.
 * December 30 – the Newcomen Baronetcy, of Kenagh in the County of Longford, is created in the Baronetage of Ireland for Robert Newcomen.
 * The Dungan Baronetcy, of Castletown in the County of Kildare, is created in the Baronetage of Ireland for Walter Dungan.
 * The title of Viscount Magennis of Iveagh is created for the chief of the clan Magennis.

Births

 * Sir George Downing, 1st Baronet, soldier, statesman and diplomat (d. 1684)
 * Approximate date
 * James Lynch (archbishop of Tuam) (d. 1713)
 * Hugh Montgomery, 1st Earl of Mount Alexander, soldier (d. 1663)

Deaths

 * Henry Piers, landowner and politician (b. 1568)