1773 in Ireland

Events from the year 1773 in Ireland.

Incumbent

Formation of Volunteer corps: the First Magherafelt Volunteers (June); and the Offerlane Blues (10 October).{{cite journal|last=Bigger|first=Francis Joseph|title=The National Volunteers of Ireland, 1782|journal=Ulster Journal of Archaeology |series=2nd Series|volume=15|issue=2/3|date=May 1909}}

15 March – first performance of Oliver Goldsmith's comedy She Stoops to Conquer at the Covent Garden Theatre in London.{{cite web|url=http://www.theatrehistory.com/british/goldsmith002.html|title=She Stoops to Conquer or The Mistakes of a Night|work=theatrehistory.com|access-date=2007-08-25|archive-url= https://web.archive.org/web/20070814142622/http://www.theatrehistory.com/british/goldsmith002.html|archive-date=14 August 2007}}
4 May – Eibhlín Dubh Ní Chonaill (Eileen O' Connell) composes the keen Caoineadh Airt Uí Laoghaire over the body of her husband Art Ó Laoghaire.{{cite book|first=Marian|last=Broderick|title=Wild Irish Women|location=Dublin|publisher=O'Brien Press|year=2002|isbn=978-0-86278-780-6|pages=65–7}}
Thomas Leland publishes The History of Ireland, from the invasion of Henry II.

23 July – Abraham Colles, professor of Anatomy, Surgery and Physiology at the Royal College of Surgeons in Ireland (died 1843).
19 August – Valentine Lawless, 2nd Baron Cloncurry, politician (died 1853).
19 November – Robert Arbuthnot, British military officer (died 1853).
22 November – John George de la Poer Beresford, Archbishop of Armagh (Church of Ireland) (died 1862).
;Full date unknown
:*William Beatty, Ship's Surgeon on {{HMS|Victory}} during the Battle of Trafalgar (died 1842).
:*Edward Bunting, musician (died 1843).
:*John Shaw, Captain in the United States Navy (died 1823).