1791 in Ireland

• Monarch: George III ==Events==

• September – Wolfe Tone publishes Argument on Behalf of the Catholics of Ireland. • 14 October – the Northern Whig Club, a group of nine Belfast Presbyterians, meets with Wolfe Tone and Thomas Russell and forms the Society of United Irishmen to press for liberal non-denominational parliamentary reform. • 7 November – The Custom House in Dublin opens for business, having been completed under the supervision of James Gandon. , Dublin • The Grand Canal opens to a junction with the Barrow at Athy. • The first bridge across the River Foyle at Derry, built by the American Lemuel Cox in wood, is opened to vehicular traffic. ==Births==

• 6 March – John MacHale, Roman Catholic Archbishop of Tuam, Irish Nationalist and writer (died 1881). • 17 August – Richard Lalor Sheil, politician, writer and orator (died 1851). • 14 December – Charles Wolfe, poet (died 1823). • ;Full date unknown • :*James Graham, soldier, commended for his gallantry during the Battle of Waterloo (died 1845). ==Deaths==

• 2 December – Henry Flood, statesman (born 1732). • ;Full date unknown • :*George Bryan, businessman, statesman and politician in Pennsylvania (born 1731). • :*Robert Carver, artist (b. c1730). ==References==