1780 in Ireland

Events from the year 1780 in Ireland.

Incumbent

 * Monarch: George III

Events

 * August – passenger boat service begins on Grand Canal between Dublin and Sallins.
 * Sacramental Test abolished.
 * Henry Grattan demands parliamentary independence.
 * Lady Berry, sentenced to death for the murder of her son, is released when she agrees to become an executioner (retires 1810).
 * The model cotton manufacturing town of Prosperous, County Kildare, developed by Robert Brooke (East India Company officer), begins to function.
 * The whiskey company John Jameson is established.

Births

 * January – William Henry Fitton, geologist (died 1861).
 * 12 March – David Barry, military surgeon and physiologist (died 1835).
 * 20 March – Myles Byrne, a leader of the Irish Rebellion of 1798 and soldier in the service of France (died 1862).
 * 13 April – Alexander Mitchell, engineer and inventor of the screw-pile lighthouse (died 1868).
 * May – Amhlaoibh Ó Súilleabháin, author, teacher, draper and politician (died 1838).
 * 17 August – George Croly, poet, novelist, historian and divine (died 1860).
 * 1 December – Edward Bowen, lawyer and politician in Lower Canada (died 1866).
 * 20 December – John Wilson Croker, statesman and author (died 1857).


 * Full date unknown
 * Michael John Brenan, priest and ecclesiastical historian (died 1847).
 * Thady Connellan, schoolteacher and writer (died 1854).
 * Anne Devlin, republican and housekeeper to Robert Emmet (died 1851).

Deaths

 * 2 February – Thomas Waite, civil servant (born 1718).
 * 3 June – Henry Denny Denson, soldier and politician in Nova Scotia (born c.1715).
 * 25 August – William Bowles, naturalist (born 1705).
 * October (drowned at sea) – Robert Boyle-Walsingham, British Royal Navy officer and politician (born 1736).
 * 19 November – Jocelyn Deane, politician (born 1749).