1558 in Ireland
Events from the year 1558 in Ireland.
Incumbent
- Monarch: Mary I, then Elizabeth I
Events
- November 17 – the Protestant Elizabeth I succeeds as Queen of England and Ireland upon the death of her Catholic half-sister Mary I. The Elizabethan Religious Settlement follows.
- Sorley Boy MacDonnell obtains lordship of the clan territory in Antrim from James MacDonald, 6th of Dunnyveg.
Deaths
- Autumn – Richard St Lawrence, 7th Baron Howth, nobleman and soldier
- October 27 – James FitzGerald, 14th Earl of Desmond.
- November 17 – Mary I, Queen of Ireland
- Thomas Butler, 1st Baron Cahir.
- Matthew O'Neill, 1st Baron Dungannon was assassinated
- Colla MacDonnell, Lord of Islay and Kintyre, died at Kinbane Castle