The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body of the United Kingdom, and may also legislate for the Crown Dependencies and the British Overseas Territories. It meets at the Palace of Westminster in London. Parliament possesses legislative supremacy and thereby holds ultimate power over all other political bodies in the United Kingdom and the Overseas Territories. While Parliament is bicameral, it has three parts: the sovereign, the House of Lords, and the House of Commons. The three parts acting together to legislate may be described as the King-in-Parliament. The Crown normally acts on the advice of the prime minister, and the powers of the House of Lords are limited to only delaying legislation.
The United Kingdom is a constitutional monarchy which, by legislation and convention, operates as a unitary parliamentary democracy. A hereditary monarch, currently King Charles III, serves as head of state while the Prime Minister of the United Kingdom, currently Sir Keir Starmer since 2024, serves as the elected head of government.
The 2004 European Parliament election was held between 10 and 13 June 2004 in the 25 member states of the European Union, using varying election days according to local custom. The European Parliamental parties could not be voted for, but elected national parties aggregated in European Parliamental parties after the elections.
The 1935 United Kingdom general election was held on Thursday 14 November. It resulted in a second landslide victory for the three-party National Government, which was led by Stanley Baldwin of the Conservative Party after the resignation of Ramsay MacDonald due to ill health earlier in the year. It is the most recent British general election to have seen any party or alliance of parties win a majority of the popular vote.
The 1931 United Kingdom general election was held on Tuesday, 27 October 1931. It saw a landslide election victory for the National Government, a three-party coalition which had been formed two months previously after the collapse of the second Labour government. Journalist Ivor Bulmer-Thomas described the result as "the most astonishing in the history of the British party system".
The 1940 Rochdale by-election was a by-election held for the British House of Commons constituency of Rochdale in Lancashire on 20 July 1940.
The 1936 Combined Scottish Universities by-election was a by-election held from 27 to 31 January 1936 for the Combined Scottish Universities, a university constituency of the British House of Commons.
The 1937 Holland with Boston by-election was a parliamentary by-election held on 24 June 1937 for the British House of Commons constituency of Holland with Boston.
The 1945 Caernarvon Boroughs by-election was a parliamentary by-election held on 26 April 1945 for the British House of Commons constituency of Caernarvon Boroughs.
The 1941 Berwick-upon-Tweed by-election was a parliamentary by-election held on 18 August 1941 for the British House of Commons constituency of Berwick-upon-Tweed.
Mangala Nath Moonesinghe was a Sri Lankan lawyer, politician and diplomat. He served as a Member of Parliament for Bulathsinhala electorate between 1965 and 1977, and the Kalutara electorate between 1989 and 1994. He was Sri Lankan High Commissioner to India from 1995 to 2000 and to the United Kingdom from 2000 to 2002.
The list of by-elections in the United Kingdom is divided chronologically by parliament:
