See also: 1910 in Ireland, other events of 1911, 1912 in Ireland and the list of 'years in Ireland'.

Events

• January 5 - Protestant church leaders condemn the Ne Temere Papal decree on mixed marriages.
• February 11 - Ireland beats England by one try to nil at the first rugby international of the season at Lansdowne Road.
• May 31 - The RMS Titanic's hull is launched at the Harland & Wolff shipyard in Belfast. It was the largest steamship afloat.
• June 22 - As King George V is crowned in London a Sinn Féin meeting at the Customs House in Dublin condemns Irish participation in the coronation ceremonies.
• July 8 - King George V and Queen Mary officially open the College of Science in Merrion Square, Dublin.
• August 9 - A statue of Charles Stewart Parnell is hoisted onto its pedesatl in Sackville Street.
• August 17 - Dublin County Council votes in favour of using Greenwich Mean Time. The councillors hear that Irish time, being 25 minutes behind Greenwich, is a great handicap for trade.
• August 18 - The Parliament Act removes the House of Lords's power regarding budgets and restricts their power over other bills to a two-year suspensive veto. This Act could make Home Rule a possibility in the future.
• September 23 - 70,000 unionists and Orangemen march from Belfast to Craigavon House to protest against Home Rule.
• October 1 - A monument to Charles Stewart Parnell is unveiled in Upper Sackville Street.

Arts and literature

Sports

Births

• February 12 - Cearbhall Ó Dálaigh, fifth President of Ireland.
• May 17 - Maureen O'Sullivan, actress.
• October 5 - Brian O'Nolan, satirist and humourist.

Deaths