Mayo (UK Parliament constituency)

Former County constituency
for the House of Commons
1801 (1801)1885 (1885)
Number of members Two
Replaced by East Mayo, North Mayo, South Mayo and West Mayo

Mayo was a parliamentary constituency in Ireland, which returned two Members of Parliament (MPs) to the House of Commons of the Parliament of the United Kingdom from 1801 to 1885.



The constituency was created at the Act of Union 1800, replacing the earlier Mayo constituency in the pre-union Parliament of Ireland. Under the Redistribution of Seats Act 1885 it was divided into four new single-seat constituencies: see East Mayo, North Mayo, South Mayo and West Mayo.


This constituency comprised the whole of County Mayo.

Members of Parliament

Year 1st Member 1st Party 2nd Member 2nd Party
1801, 1 January Denis Browne George Jackson
1802, 22 July Henry Dillon-Lee, later Viscount Dillon
1814, 5 March Dominick Browne, later Baron Oranmore
1818, 4 July James Browne
1826, 24 June George Lucan, Baron Bingham, later Earl of Lucan
1830, 14 August Dominick Browne, later Baron Oranmore
1831, 19 May John Denis Browne
1835, 24 January Sir William Brabazon, Bt.
1836, 6 May Robert Dillon Browne
1840, 16 December Mark Blake
1846, 2 March Joseph Myles McDonnell
1847, 14 August George Henry Moore[1]
1850, 29 July George Gore Ousley Higgins
1857, 10 April Independent Irish Roger Palmer Conservative
1857, 30 December Lord John Browne, later Marquess of Sligo
1865, 19 July Charles Bingham, Lord Bingham, later Earl of Lucan
1868, 23 November George Henry Moore
1870, 12 May George Ekins Browne
1874, 7 Feb[2] Thomas Tighe
1874, 1 June George Ekins Browne John O'Connor Power Home Rule League
1880, 15 April Charles Stewart Parnell[3] Home Rule League
1880, 26 May Isaac Nelson
1882[4] Irish Parliamentary Party
1885 Constituency divided: see East Mayo, North Mayo, South Mayo and West Mayo


The elections in this constituency took place using the first past the post electoral system.[citation needed]

General Election 1880: Mayo
Party Candidate Votes % ±%
Home Rule John O'Connor Power 1,645 N/A N/A
Home Rule Charles Stewart Parnell 1,545 N/A N/A
Home Rule Browne 628 N/A N/A
Home Rule gain from Other Swing N/A


  1. ^ Following the general election in Apr 1857, the election of George Henry Moore was declared void on 14 Jul 1857. The writ was suspended until Dec 1857
  2. ^ Following the general election in Feb 1874, the election of the two sitting members (Browne and Tighe) was declared void on 7 May 1874
  3. ^ Parnell was also returned for both Meath and Cork. He chose to sit for Cork
  4. ^ There was no election in 1882, but in that year the Home Rule League was renamed as the Irish Parliamentary Party


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