1540 in Ireland

Events from the year 1540 in Ireland.

Incumbent

 * Lord: Henry VIII

Events

 * Anthony St Leger is appointed Lord Deputy of Ireland and tasked with the repression of disorder, beginning the pacification policy of surrender and regrant (which lasts until 1543).
 * Murrough O'Brien usurps the title of King of Thomond from his nephew, Donough O'Brien.
 * Dissolution of the Monasteries – establishments dissolved include:
 * Abbeyderg Abbey, Co. Longford.
 * Abbeylara Abbey.
 * Abington Abbey.
 * Abbey of Aghaboe.
 * Aghmacart Priory, Co. Laois.
 * Augustinian Friary of the Holy Trinity and Franciscan Friary, Dublin.
 * Ballynasaggart Friary, Co. Longford.
 * Black Abbey, Grey Friary, Kilkenny Abbey and St. John's Abbey, Kilkenny.
 * Buttevant Franciscan Friary.
 * Cahir Priory.
 * Callan Augustinian Friary.
 * Carrickfergus Friary.
 * Cashel Dominican and Franciscan Friaries.
 * Castledermot Friary and Priory.
 * Clane Friary.
 * Clonard Abbey.
 * Clonmel Friary.
 * Dominican Priory of St Eustace, Naas.
 * Drogheda Dominican and Franciscan Friaries and Priory Hospitals of St Laurence and St Mary de Urso
 * Fertagh Priory, Co. Kilkenny.
 * Fethard Priory.
 * Galbally Friary, Co. Tipperary.
 * Great Connell Priory.
 * Holy Cross Abbey, Holycross.
 * Hore Abbey.
 * Inchmore Priory, Lough Gowna.
 * Inislounaght Abbey.
 * Inistioge Abbey.
 * Jerpoint Abbey.
 * Kells Priory, Co. Kilkenny.
 * Killerig Preceptory.
 * Kilmainham Preceptory.
 * Monasteranenagh Abbey, Co. Limerick.
 * Red Abbey, Cork.
 * Slane Friary.
 * Trim Friary