1851 in Ireland

← 1850 1849 1848 1847 1846 1851 in Ireland → 1852 1853 1854 1855 1856
Centuries:	17th 18th 19th 20th 21st
Decades:	1830s 1840s 1850s 1860s 1870s
See also:	1851 in the United Kingdom Other events of 1851 List of years in Ireland

Events from the year 1851 in Ireland.

Events

• 30 March - The United Kingdom Census shows that, as part of the legacy of the Great Famine, the population of Ireland has fallen to 6,575,000 – a drop of 1,600,000 in ten years. This is the first census to note use of the Irish language.
• 1 August - Midland Great Western Railway extended from Mullingar to Galway.
• 7 August - Poor Relief (Ireland) Act provides for the establishment of dispensaries.
• Construction of MacNeill's Egyptian Arch, a railway bridge near Newry on the Dublin-Belfast railway line is completed.

Sport

Legacy of the Great Famine

Births

• 8 January - William McDonnell, 6th Earl of Antrim, peer (died 1918).
• 14 March - Paddy Ryan, boxer (died 1900).
• 21 March - Henry Prittie, 4th Baron Dunalley, peer and Lord Lieutenant of County Tipperary 1905-1922 (died 1927).
• 4 April - James Campbell, 1st Baron Glenavy, lawyer, Lord Chancellor of Ireland, first Chairman of Seanad Éireann (died 1931).
• 22 May - William Moxley, representative from Illinois' 6th congressional district (died 1938).
• 4 September - John Dillon, land reform agitator, Irish Home Rule activist, nationalist politician, MP and last leader of the Irish Parliamentary Party (died 1927).

Full date unknown

• George Noble Plunkett, nationalist, politician, museum curator (died 1948).
• Ted Sullivan, Major League Baseball player and manager (died 1929).

Deaths

• 23 May - Richard Lalor Sheil, politician, writer and orator (born 1791).
• 1 September - Anne Devlin, Irish republican and housekeeper to Robert Emmet (born 1780).