1575 in Ireland

Centuries:	14th; 15th; 16th; 17th; 18th;
Decades:	1550s; 1560s; 1570s; 1580s; 1590s;
See also:	Other events of 1575 ; List of years in Ireland

Events from the year 1575 in Ireland.

Incumbent

Walter Devereux, Earl of Essex, has members of the clan O'Neill killed at Banbridge.
March 16 – Edmund O'Donnell is hanged, drawn and quartered in Cork as a traitor, the first Jesuit executed by the English government.
May–August – drought.^[1]
May 22 – Elizabeth I of England orders Essex to break off his enterprise of the plantation of Antrim.^[2] He will return to England at the end of the year.
June – Essex builds a bridge and fort at Blackwater (north of Armagh).^[2]
June 27 – Turlough Luineach O'Neill submits to the English authorities and receives extensive grants of lands and permission to employ 300 Scottish mercenaries.
July 20–26 – Rathlin Island Massacre: English adventurers Francis Drake and John Norreys, acting for the Earl of Essex, lead an expedition that culminates in the massacre of 500 of the clan MacDonnell in a surprise raid on Rathlin Island.^[2]^[3]
August–September – Plague in Leinster.^[2]
August 5 – Sir Henry Sidney is reappointed Lord Deputy of Ireland^[4] following the resignation of Sir William FitzWilliam.

Approximate date – the manuscript now known as Royal Irish Academy, MS 23 N 10 is copied at Ballycumin, County Roscommon, by Aodh, Dubhthach and Torna of the Ó Maolconaire family.