First-past-the-post in the context of "National Assembly of Pakistan"

The Parliament of the United Kingdom currently has 650 parliamentary constituencies across the constituent countries (England, Scotland, Wales, and Northern Ireland), each electing a single member of parliament (MP) to the House of Commons by the plurality (first-past-the-post) voting system, ordinarily every five years. Voting last took place in all 650 of those constituencies at the United Kingdom general election on 4 July 2024.

The number of seats rose from 646 to 650 at the 2010 general election after proposals made by the boundary commissions for England, Wales, and Northern Ireland (the Fifth Periodic Review of Westminster constituencies) were adopted through statutory instruments. Constituencies in Scotland remained unchanged, as the Boundary Commission for Scotland had completed a review just before the 2005 general election, which had resulted in a reduction of 13 seats.

The two-round system (TRS or 2RS), sometimes called ballotage, top-two runoff, or two-round plurality, is a single-winner electoral system which aims to elect a member who has support of the majority of voters. The two-round system involves two rounds of choose-one voting, where the voter marks a single favorite candidate in each round. The two candidates with the most votes in the first round move on to a second election (a second round of voting). The two-round system is in the family of plurality voting systems that also includes single-round plurality (FPP). Like instant-runoff (ranked-choice) voting and first past the post, it elects one winner.

The two-round system first emerged in France and has since become the most common single-winner electoral system worldwide. Despite this, runoff-based rules like the two-round system and RCV have faced criticism from social choice theorists as a result of their susceptibility to center squeeze (a kind of spoiler effect favoring extremists) and the no-show paradox. This has led to the rise of electoral reform movements which seek to replace the two-round system with other systems like rated voting, particularly in France.

There are five types of elections in the United Kingdom: elections to the House of Commons of the United Kingdom (commonly called 'general elections' when all seats are contested), elections to devolved parliaments and assemblies, local elections, mayoral elections, and Police and Crime Commissioner elections. Within each of those categories, there may also be by-elections. Elections are held on Election Day, which is conventionally a Thursday, and under the provisions of the Dissolution and Calling of Parliament Act 2022 the timing of general elections can be held at the discretion of the prime minister during any five-year period. All other types of elections are held after fixed periods, though early elections to the devolved assemblies and parliaments can occur in certain situations. The five electoral systems used are: the single member plurality system (first-past-the-post), the multi-member plurality, the single transferable vote, the additional member system, and the supplementary vote.

Elections are administered locally: in each lower-tier local authority, the polling procedure is operated by the returning officer or acting returning officer, and the compiling and maintenance of the electoral roll by the electoral registration officer (except in Northern Ireland, where the Electoral Office for Northern Ireland assumes both responsibilities). The Electoral Commission sets standards for and issues guidelines to returning officers and electoral registration officers, and is responsible for nationwide electoral administration (such as the registration of political parties and directing the administration of national referendums).

In the United Kingdom under the premiership of William Gladstone, the Representation of the People Act 1884 (48 & 49 Vict. c. 3), also known informally as the Third Reform Act, and the Redistribution Act of the following year were laws which further extended the suffrage in the UK after the Derby government's Reform Act 1867. Taken together, these measures extended the same voting qualifications as existed in the towns to the countryside, more than doubling the electorate in the counties, and essentially established the modern one member constituency as the normal pattern for parliamentary representation.

The bill was introduced by Gladstone on 28 February 1884. The Conservative-dominated House of Lords rejected the bill on 17 July but then passed it. It gained royal assent on 6 December of that year.

The Representation of the People Act 1918 (7 & 8 Geo. 5. c. 64) was an act of Parliament passed to reform the electoral system in Great Britain and Ireland. It is sometimes known as the Fourth Reform Act. The act extended the franchise in parliamentary elections, also known as the right to vote, to men aged over 21, whether or not they owned property, and to women aged over 30 who resided in the constituency whilst occupying land or premises with a rateable value above £5, or whose husbands did. At the same time, it extended the local government franchise to include women aged over 30 on the same terms as men. It came into effect at the 1918 general election.

As a result of the act, the male electorate was extended by 5.2 million to 12.9 million. The female electorate was 8.5 million. The act also created new electoral arrangements, including making residence in a specific constituency the basis of the right to vote and institutionalising the first-past-the-post method of election.

The Lok Sabha, also known as the House of the People, is the lower house of the bicameral Parliament of India, where the upper house is Rajya Sabha. Members of the Lok Sabha are elected by an adult universal suffrage and a first-past-the-post system to represent their respective constituencies, and they hold their seats for five years or until the body is dissolved by the president of India on the advice of the union council of ministers. The house meets in the Lok Sabha chamber of the Parliament House in New Delhi.

The maximum membership of the house as allotted by the Constitution of India is 552 before the abolition of Anglo-Indian seats, currently it is 550. As of 2025, the house has 543 elected members. Between 1952 and 2020, two additional members of the Anglo-Indian community were nominated by the president of India on the advice of the Indian government, and the practice was abolished in January 2020 by the 104th amendment to the Indian constitution. The new parliament has a maximum seating capacity for 888 members in Lok Sabha.

Witney is a county constituency in Oxfordshire represented in the House of Commons of the Parliament of the United Kingdom. It elects one Member of Parliament by the first-past-the-post system of election, and was created for the 1983 general election.

Historically a safe Conservative Party seat for the most part of its existence, it has been represented since 2024 by Charles Maynard of the Liberal Democrats. From 2001 to 2016, the constituency was represented by David Cameron, who was the prime minister from 2010 until his resignation in 2016, and the Leader of the Conservative Party (2005–2016).