The fifty-seventh Parliament of the United Kingdom is the legislature of the United Kingdom following the 2017 general election of Members of Parliament (MPs) to the House of Commons. The Parliament, which consists of the House of Lords and the elected House of Commons, was convened at the Palace of Westminster by Queen Elizabeth II on 21 June 2017. Each of Parliament's 650 constituencies returns one MP to the House of Commons.

Below are graphical representations of the House of Commons showing party strengths directly after the 2017 general election, and currently. This is not a seating plan of the House of Commons, which has five rows of benches on each side, with the government party to the right of the Speaker and opposition parties to the left, but with room for only around two-thirds of MPs to sit at any one time.

26 June 2017

Current (see image description page for date)

This table shows the number of MPs in each party:

The following table is a list of MPs elected, ordered by constituency. Names of incumbents are listed where they stood for re-election; for details of defeated new candidates and the incumbent who stood down in those cases see individual constituency articles.

The Speaker nominated Sir David Amess (Conservative, Southend West) and George Howarth (Labour, Knowsley) to serve as Temporary Deputy Speakers until the Deputy Speakers had been elected.

The election of Deputy Speakers took place on 28 June 2017.

Although Deputy Speakers do not resign from their parties, they cease to vote (except to break ties) and they do not participate in party-political activity until the next election.

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