• 16 January – Three lion cubs reared by an Irish red setter went on view at Dublin Zoo.
• 17 January – The different sections of the Nationalist Party met in the Dublin Mansion House's Oak Room to promote national unity.
• 6 February – The Irish National League and Irish National Federation re-united within the Irish Parliamentary Party, with John Redmond elected as compromise chairman.
• 28 February – Unofficial figures showed that the Royal Dublin Fusiliers suffered the most in the Second Boer War.
• 12 March – The 45th Company of the Imperial Yeomanry left Dublin for service in South Africa.
• 17 March – In celebration of Saint Patrick's Day, the Lord Lieutenant (Earl Cadogan), accompanied by his staff, reviewed a military display in the yard of Dublin Castle, followed by dinner and a ball in Saint Patrick's Hall that evening.
• 1 April – The Irish Guards regiment of the British Army was formed by order of Queen Victoria to honour the Irish troops fighting in the Boer War for the British Empire.^[1][2]

• 4 April – Queen Victoria arrived at Kingstown and travelled to Dublin where she was greeted by the Lord Mayor and members of the corporation.
• 7 April – 52,000 children greeted Queen Victoria at the Phoenix Park in Dublin.
• 23 April – At a meeting in Loughrea, County Galway, Douglas Hyde complained of the rapid anglicisation of the country and the loss of the Irish language.
• 11 May – Edward Carson became Solicitor General for England and Wales and was knighted.^[3]
• 13 May – The rift in the Irish Parliamentary Party was healed as John Dillon and John Redmond shared a platform for the first time in ten years.
• 5 July – The British War Office issued a list of Irish prisoners of the Boers from the 1st Battalion Royal Irish Fusiliers. It named 473 men from eight companies.
• 31 December – Ceremonies all over the country marked the closing of the 19th century and the dawning of the 20th.^{[citation needed]}
• Richard J. Ussher and Robert Warren published The Birds of Ireland in London.^[4]

• The Irish Literary Theatre staged three plays at the Gaiety Theatre, Dublin with an English company: Edward Martyn's Maeve; Alice Milligan's The Last Feast of the Fianna; and George Moore's satirical The Bending of the Bough: a comedy in five acts (an adaptation of his cousin Martyn's The Tale of a Town).
• 'Moira O'Neill' published Songs of the Glens of Antrim.

Football edit

• International

  24 February Wales 2–0 Ireland (in Llandudno)^[5]

  3 March Ireland 0–2 Scotland (in Belfast)^[5]

  17 March Ireland 0–2 England (in Dublin: the first International match played here)^[5]

  Irish League

  Winners: Belfast Celtic

  Irish Cup

  Winners: Cliftonville 2–1 Bohemians

• Derry Celtic is founded and joins the Irish Football League.

• 10 January – Harry Kernoff, artist (died 1974)
• 19 January – Frank Devlin, badminton player (died 1988)
• January – Michael Donnellan, founder of the Clann na Talmhan party and Teachta Dála (TD) (died 1964)
• 4 February – Robert Edgeworth-Johnstone, chemical engineer (died 1994 in France)
• 16 February – John Stewart Collis, writer and pioneer ecologist (died 1984) and his twin Robert Collis, physician and writer (died 1975)
• 22 February – Seán Ó Faoláin, short story writer (died 1991)
• 27 February – James Ennis, cricketer (died 1976)
• 1 March – Nano Reid, painter (died 1981)
• 6 March – Mark Deering, Fine Gael party TD (died 1972)
• 25 May – John Hunt, expert on mediaeval art (died 1976)
• 10 July – Paul Vincent Carroll, dramatist (died 1968)
• 17 July – Paddy Smith, Fianna Fáil party TD and longest-serving member of Dáil Éireann (54 years) (died 1982)
• 22 July – Michael Davern, Fianna Fáil TD for Tipperary South 1948–1965 (died 1973)
• 20 August – Seosamh Mac Grianna, writer (died 1990)
• 26 August – Eudie Coughlan, Cork hurler (died 1987)
• 30 August – Martin King, Galway hurler (died 1969)
• 2 October – Hubert Butler, writer and historian (died 1991)
• 18 October – Sarah Makem, traditional singer (died 1983)
• 23 October
  • Paddy Ahern, Cork hurler (died 1971)
  • Hubert Butler, scholar, essayist and humanitarian (died 1991)
• 27 October – Peter Kerley, radiologist (died 1979)
• October – Frank Ryan, tenor (died 1965)
• 2 November – William Norton, Labour party leader, TD and Cabinet minister (died 1963)
• 19 November – Pamela Hinkson, writer (died 1982)
• 4 December – Tom Farquharson, association football player (died 1970)
• 23 December – Noel Purcell, actor (died 1985)^[6]
• Full date unknown – John Doherty, fiddle player (died 1980)

• 19 January – William Larminie, poet and folklorist (born 1849)
• 23 January – Abraham Boulger, soldier, recipient of the Victoria Cross for gallantry in 1857 at Lucknow, India (born 1835)
• 23 January – James Pearson, soldier, recipient of the Victoria Cross for gallantry in 1858 at Jhansi, India (born 1822)
• 7 March – Thomas Preston, scientist (born 1860)
• 16 March – Frederick William Burton, painter (born 1816)
• 22 March – Thomas Murphy, recipient of the Victoria Cross for bravery at sea in saving life in a storm off the Andaman Islands in 1867 (born 1839)
• 26 April – John Hawkins Hagarty, lawyer, teacher and judge in Canada (born 1816)
• 2 July – Thomas Farrell, sculptor (born 1827)
• 12 November – Marcus Daly, businessman in America (born 1841)
• 30 November – Oscar Wilde, playwright, novelist and poet, died in France (born 1854)^[7]
• 14 December – Paddy Ryan, boxer (born 1851)
• Full date unknown – Thomas Workman, entomologist and arachnologist (born 1843)

• 1900 in Scotland
• 1900 in Wales