1755 in Ireland

Centuries:	16th; 17th; 18th; 19th; 20th;
Decades:	1730s; 1740s; 1750s; 1760s; 1770s;
See also:	Other events of 1755; List of years in Ireland

Events from the year 1755 in Ireland.

Incumbent

10 April – Essex Bridge across the river Liffey in Dublin is opened to carriage traffic.^[1]
1 November – the Spanish Arch in Galway is partially destroyed by a tsunami generated by the Lisbon earthquake which is felt across Munster.^[1]
The Commissioners of Inland Navigation order commencement of work on making the River Shannon navigable.^[2]
The Artillery Company of Ireland, predecessor of the Royal Irish Artillery, is formed.
Completion of Russborough House, County Wicklow, designed in the Palladian style by Richard Cassels for Joseph Leeson, 1st Earl of Milltown.
Kilwarlin Moravian Church is founded in County Down by the evangelist John Cennick.

14 May – George Barrington, pickpocket, socialite, Australian pioneer and author (died 1804 in Australia)
7 June – Isidore Lynch, soldier (died 1841)
24 June – John Glendy, Presbyterian minister (died 1832 in the United States)
8 July – James Blackwood, 2nd Baron Dufferin and Claneboye, politician (died 1836)
John Handcock, soldier and politician (died 1786)
John Proby Osborne, lawyer and politician (died 1787)
Owen Wynne, landowner and politician (died 1841)
Approximate date
- Joseph Allison, farmer and politician in Nova Scotia (died 1806)
- Joseph Marshall, farmer, judge and politician in Nova Scotia (died 1847)

^ ^a ^b Moody, T. W.; et al., eds. (1989). A New History of Ireland. 8: A Chronology of Irish History. Oxford University Press. ISBN 978-0-19-821744-2.
^ Delaney, Ruth (2004). Ireland's Inland Waterways. Belfast: Appletree Press.