1877 in Ireland

Events

• May – Sophia Jex-Blake qualifies as a Licentiate of the King’s and Queen’s College of Physicians of Ireland.
• 7/9 July – Pedro II of Brazil, Emperor of Brazil, arrived in Belfast on the SS Antrim as part of a largely unpublicised visit to Ireland. As part of the trip, he visited the Giant's Causeway, Dublin, the lakes of Killarney, and Cork. The emperor and his entourage departed Ireland on the 11th July.
• 1 September – the narrow gauge Ballymena and Larne Railway starts operations in County Antrim, from Larne to Ballyclare for goods traffic.
• 14 August – National Museum of Ireland established in Dublin.

  Arts and literature

• Percy French, at this time a student at Trinity College Dublin, composes the song "Abdul Abulbul Amir".

  Births

• 20 February – T. C. Hammond, Anglican clergyman, Principal of Moore Theological College, Sydney.
• 12 March – Sam Maguire, Irish Republican and Gaelic footballer.
• 17 March – George Gardiner, boxer.
• 2 April – Gus Kelly, cricketer.
• 2 April – Richard Rowley, poet and writer.
• 26 April – Robert Gwynn, cricketer.
• 26 May – Hanna Sheehy-Skeffington, feminist, suffragette and writer.
• 12 June – Hugh Godley, 2nd Baron Kilbracken, barrister.
• 20 July – Tom Crean, Antarctic explorer and publican.
• 2 December – Cahir Healy, Nationalist Party MP.
• 15 December – John T. McNicholas, Archbishop of Roman Catholic Archdiocese of Cincinnati and founder of the Catholic Legion of Decency.
• ;Full date unknown
• :*George C. Bennett, Cumann na nGaedheal TD, later Fine Gael and Seanad Éireann member.
• :*Con Lehane, socialist active in the Irish Socialist Republican Party, the Social Democratic Federation and Socialist Party of Great Britain.

  Deaths

• 7 February – John O'Mahony, a founder of the Irish Republican Brotherhood.
• 11 June - Samuel Kelly, coal merchant
• 1 October – David Moriarty, Roman Catholic Bishop of Kerry.