1756 in Ireland

Events

• 30 May – the Roman Catholic Diocese of Ardagh and Clonmacnoise is formed by merger of the Bishopric of Ardagh with that of Clonmacnoise. Augustine Cheevers serves as first bishop until August when he is succeeded by Anthony Blake.
• The title Earl of Lanesborough is created in the Peerage of Ireland in favour of Humphrey Butler, 2nd Viscount Lanesborough.
• The title Earl of Shannon is created in the Peerage of Ireland in favour of the politician Henry Boyle.
• Charles Bingham was appointed High Sheriff of Mayo

  Arts and literature

• May – the dramatic poem Leucothoé becomes Isaac Bickerstaffe's first published work.

  Births

• 29 January – Richard Hely-Hutchinson, 1st Earl of Donoughmore, politician
• 30 June – Charles FitzGerald, 1st Baron Lecale, politician
• July – John Hamilton, 1st Marquess of Abercorn, politician
• 25 July – Elizabeth Hamilton, Scottish essayist, poet, satirist and novelist

  Deaths

• Approximate date – Cathal Buí Mac Giolla Ghunna, poet