1811 in Ireland

Events

• Kildare Place Society founded as a non-denominational organisation by a group of Dublin philanthropists.
• The Missionary: An Indian Tale, a romance novela by Irish author Sydney Owenson is published.
• 4 December – Royal Navy frigate is driven in a gale onto rocks in Lough Swilly with no survivors from the estimated 253 aboard.

Arts and literature

• James Sheridan Knowles' play Brian Boroihme; or, The Maid of Erin is performed in Belfast.

Births

• 21 January – James Hamilton, 1st Duke of Abercorn, politician and twice Lord Lieutenant of Ireland.
• 10 March – Yankee Sullivan, bare knuckle fighter and boxer.
• 11 March – Lady Katherine Sophia Kane née Baily, botanist.
• 11 November – John Egan, businessman and politician in Ottawa.
• ;Full date unknown
• Patrick Murray, theologian.

Deaths

• Robert Brooke, soldier, Governor of St Helena.