1758 in Ireland

Events from the year 1758 in Ireland.

Incumbent

Summer – work begins on construction of what will become the Grand Canal near Dublin.{{cite book|first=Ruth|last=Delany|title=A celebration of 250 years of Ireland's Inland Waterways|location=Belfast|publisher=Appletree Press|year=1988|isbn=0-86281-200-3|page=76}}
27 October – the ship Dublin Trader (Captain White) leaves Parkgate, Cheshire, for Dublin, and founders in the Irish Sea; she carries 70,000 Irish pounds in money and £80,000 in goods, while among the 60 passengers lost are Edward, fifth Earl of Drogheda, Theophilus Cibber (the English actor, bound for a season at the Smock Alley Theatre), and (probably) the mezzotint engraver Michael Ford.{{cite web|first=Eric|last=Salmon|title=Cibber, Theophilus (1703–1758)|work=Oxford Dictionary of National Biography|publisher=Oxford University Press|year=2004|url=http://www.oxforddnb.com/view/article/5418|access-date=2012-10-31|doi=10.1093/ref:odnb/5418}} {{ODNBsub}}
The agriculturalist Richard Geoghegan reclaims a large tract of land from the sea at Ballyconneely in County Galway.
Mineral spring discovered at Lucan, Dublin.

26 March – Samuel Greg, entrepreneur and pioneer of the factory system at Quarry Bank Mill (died 1834).
December – Mary Leadbeater, writer (died 1826).
Hans Blackwood, 3rd Baron Dufferin and Claneboye, politician (died 1839).
Approximate date – Charles "Hindoo" Stuart, East India Company officer (died 1828 in India).