««« 1864 1863 1862 1861 1860	1865 in Ireland	»»» 1866 1867 1868 1869 1870
Decades: 1840s • 1850s • 1860s • 1870s • 1880s Centuries: 17th • 18th • 19th • 20th • 21st See also: 1865 in the United Kingdom Other events of 1865 List of years in Ireland

Events

• Work begins on the building of the Albert Memorial Clock, Belfast, as a memorial to Queen Victoria's late Prince Consort, Prince Albert.

Births

• 6 February - Andrew Claude de la Cherois Crommelin, astronomer (d.1939).
• 16 March - Patsy Donovan, Major League Baseball player and manager (d.1953).
• 17 March - Patrick Joseph Sullivan, mayor of Casper, Wyoming and Republican member of the United States Senate from Wyoming (d.1935).
• 20 April - James Macmahon, civil servant and businessman, Under-Secretary for Ireland from 1918 to 1922 (d.1954).
• 4 May - Charles A. Callis, member of the Quorum of the Twelve Apostles of The Church of Jesus Christ of Latter-day Saints (d.1947).
• 7 May - John MacBride, nationalist, rebel and Easter Rising leader, executed (d.1916).
• 8 May - Charles FitzClarence, soldier, recipient of the Victoria Cross for gallantry in 1899 near Mafeking, South Africa, killed in action (d.1914).
• 13 June - William Butler Yeats, poet and dramatist (d.1939).
• 18 June - Henry Allan, painter (d.1912).
• 15 July - Alfred Harmsworth, 1st Viscount Northcliffe, newspaper and publishing magnate (d.1922)
• 16 October - Frederick Lambart, 10th Earl of Cavan, British Army commander in World War I, later Chief of the Imperial General Staff and Field Marshal (d.1946).
• 12 November - Herbert Trench, poet (d.1923).

Full date unknown

• Thomas Kent, nationalist and rebel, executed following a gunfight with the RIC (d.1916).
• Alice Milligan, nationalist and poet (d.1953).
• Dermod O'Brien, painter (d.1945).
• Grace Rhys, novelist (d.1929).
• Robert Henry Woods, Irish Unionist MP (d.1938).

Deaths

• 1 April - John Cuffe, 3rd Earl of Desart, Conservative politician. (b.1818).
• 23 May - Benjamin Holmes, businessman and politician in Quebec (b.1794).
• 14 July - Nathaniel Burslem, soldier, recipient of the Victoria Cross for gallantry in 1860 at the Taku Forts, China (b.1838).
• 31 August - John Farrell, soldier and recipient of the Victoria Cross for gallantry at the 1854 Charge of the Light Brigade (b.1826).
• 2 September - William Rowan Hamilton, mathematician, physicist, and astronomer (b.1805).

Full date unknown

• Jones Quain, anatomist (b.1796).