The Northern Ireland general election, 1921 was held on 24 May 1921. It was the first election to the Parliament of Northern Ireland. Ulster Unionist Party members won a two-thirds majority of votes cast and more than three-quarter of the seats in the assembly. Sinn Féin in particular was shocked at the scale of the Unionist victory, having spent considerable resources on the campaign, and had expected to win between 1/3 and 1/2 of the seats. The election was conducted using the single transferable vote system.
Elections in Northern Ireland are held on a regular basis to local councils, the Northern Ireland Assembly, the Parliament of the United Kingdom, and to the European Parliament.
There were two elections in Ireland on 24 May 1921, as a result of the Government of Ireland Act 1920 to establish the House of Commons of Northern Ireland and the House of Commons of Southern Ireland. A resolution of Dáil Éireann on 10 May 1921 held that these elections were to be regarded as elections to Dáil Éireann and that all those returned at these elections be regarded as members of Dáil Éireann. According to this theory of Irish republicanism, these elections provided the membership of the Second Dáil. The Second Dáil lasted 388 days.
The Galloway by-election, 1925 was a by-election held for the British House of Commons constituency of Galloway in Scotland on 17 November 1925. The by-election was won by the Unionist Party candidate Sidney Streatfeild.
Belfast Windsor was a constituency of the Parliament of Northern Ireland.
Enniskillen was a constituency of the Parliament of Northern Ireland.
Belfast Woodvale was a constituency of the Parliament of Northern Ireland.
Belfast Shankill was a constituency of the Parliament of Northern Ireland.
North Londonderry was a county constituency comprising the southern part of County Londonderry. It was created in 1929, when the House of Commons Act 1929 introduced first-past-the-post elections throughout Northern Ireland. It was created in 1929 as one of five single-member constituencies replacing the former five-member Londonderry constituency. The constituency survived unchanged, returning one member of Parliament until the Parliament of Northern Ireland was temporarily suspended in 1972, and then formally abolished in 1973.
Belfast Duncairn was a constituency of the Parliament of Northern Ireland.
Edmund Francis Vesey Knox was an Irish nationalist politician. Initially a member of the Irish Parliamentary Party, he sided with the Anti-Parnellite majority when the party split in 1891.
East Down was a constituency of the Parliament of Northern Ireland.
The Orkney and Shetland by-election, 1921 was a parliamentary by-election held for the British House of Commons constituency of Orkney and Shetland on 17 May 1921.
The East Dorset by-election, 1921 was a parliamentary by-election held for the House of Commons constituency of East Dorset on 16 April 1921.
The Lewisham West by-election, 1921 was a by-election held on 13 September 1921 for the British House of Commons constituency of Lewisham West.
The Hythe by-election was a Parliamentary by-election. It returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom, elected by the first past the post voting system.
The West Derbyshire by-election, 1891 was a parliamentary by-election held for the House of Commons constituency of West Derbyshire on 2 June 1891.
The West Derbyshire by-election, 1900 was a parliamentary by-election held for the House of Commons of the United Kingdom constituency of West Derbyshire on 11 December 1900.
The Mid Armagh by-election of 1921 was held on 23 June 1921. The by-election was held due to the death of the incumbent Ulster Unionist MP, James Rolston Lonsdale. It was won unopposed by the UUP candidate Henry Bruce Armstrong.
The North Fermanagh by-election of 1916 was held on 27 October 1916. The by-election was held due to the resignation of the incumbent Irish Unionist MP, Godfrey Fetherstonhaugh. It was won by the Irish Unionist candidate Edward Archdale who was unopposed due to a War-time electoral pact.
