View source for Sandbox/UK/17

{{Infobox election
| election_name = 2017 United Kingdom general election
| country = United Kingdom
| type = parliamentary
| ongoing = no
| previous_election = 2015 United Kingdom general election
| previous_year = 2015
| election_date = 8 June 2017
| next_election = 2022 United Kingdom general election
| next_year = 2022
| previous_mps = List of MPs elected in the 2015 United Kingdom general election
| next_mps = 
| elected_mps = List of MPs elected in the 2017 United Kingdom general election
| seats_for_election = All {{wp|Constituencies of the Parliament of the United Kingdom|650 seats}} in the {{wp|House of Commons of the United Kingdom|House of Commons}}
| majority_seats = 326{{refn|group=n|name=realmajority|Given that Sinn Féin MPs {{wp|Abstentionism#Sinn Féin|do not take their seats}} and the Speaker and deputies do not vote, the number of MPs needed for a majority is, in practice, slightly lower. Sinn Féin won 7 seats, meaning a practical majority requires at least 320 MPs.}}
| opinion_polls = Opinion polling for the 2019 United Kingdom general election
| turnout = 32,204,184<br>68.8% ({{increase}} 2.4 {{wp|Percentage point|pp}})<ref>{{cite web |title=General Election 2017: full results and analysis |url=http://researchbriefings.parliament.uk/ResearchBriefing/Summary/CBP-7979#fullreport |website=UK Parliament |edition=second |date=29 January 2019 |access-date=6 April 2022 |archive-date=16 November 2019 |archive-url=https://web.archive.org/web/20191116202815/https://researchbriefings.parliament.uk/ResearchBriefing/Summary/CBP-7979#fullreport |url-status=live }}</ref>
| registered = 46,836,533
<!-- Conservative -->| image1 = {{CSS image crop|Image =Theresa May election infobox.jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader1 = {{wp|Theresa May}}
| party1 = Conservative Party (UK)
| leader_since1 = {{wp|2016 Conservative Party leadership election|11 July 2016}}
| leaders_seat1 = {{wp|Maidenhead (UK Parliament constituency)|Maidenhead}}
| last_election1 = 330 seats, 36.9%
| seats1 = '''431'''
| seat_change1 = {{increase}} 101
| popular_vote1 = '''15,232,579'''
| percentage1 = '''47.3%'''
| swing1 = {{increase}} 10.5 {{wp|Percentage point|pp}}
<!-- Labour -->| image2 = {{CSS image crop|Image =Jeremy Corbyn election infobox 2.jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader2 = {{wp|Jeremy Corbyn}}
| leader_since2 = {{wp|2015 Labour Party leadership election (UK)|12 September 2015}}
| party2 = Labour Party (UK)
| leaders_seat2 = {{wp|Islington North}}
| last_election2 = 232 seats, 30.4%
| seats2 = 127
| seat_change2 = {{decrease}} 105 <!--comparison is with last election -->
| popular_vote2 = 9,693,459
| percentage2 = 30.1%
| swing2 = {{decrease}} 0.3 {{wp|Percentage point|pp}}
<!-- Lib Dem -->| image3 = {{CSS image crop|Image =Official portrait of Tim Farron MP crop 4.jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader3 = {{wp|Tim Farron}}
| leader_since3 = {{wp|2015 Liberal Democrats leadership election|16 July 2015}}
| party3 = Liberal Democrats (UK)
| leaders_seat3 = {{wp|Westmorland and Lonsdale (UK Parliament constituency)|Westmorland<br />and&nbsp;Lonsdale}}
| popular_vote3 = 3,993,318
| percentage3 = 12.4%
| swing3 = {{increase}} 4.5 {{wp|Percentage point|pp}}
| last_election3 = 8 seats, 7.9%
| seats3 = 40
| seat_change3 = {{increase}} 32<!-- comparison is with last election -->
<!-- SNP -->| image4 = {{CSS image crop|Image =Nicola Sturgeon election infobox 3.jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader4 = {{wp|Nicola Sturgeon}}
| leader_since4 = {{wp|2014 Scottish National Party leadership election|14 November 2014}}
| party4 = Scottish National Party
| leaders_seat4 = ''Did not stand''{{refn|group=n|name=sturgeonseat|Nicola Sturgeon sits as an {{wp|Member of the Scottish Parliament|MSP}} in the {{wp|Scottish Parliament}} for {{wp|Glasgow Southside}}. Before the election, the SNP delegation to the House of Commons was led by {{wp|Angus Robertson}}, MP for {{wp|Moray (UK Parliament constituency)|Moray}}, who lost his seat. {{wp|Ian Blackford}}, MP for {{wp|Ross, Skye and Lochaber (UK Parliament constituency)|Ross, Skye and Lochaber}}, succeeded him.}}
| last_election4 = 56 seats, 4.7%
| seats4 = 32
| seat_change4 = {{decrease}} 24<!-- comparison is with last election -->
| popular_vote4 = 977,568
| percentage4 = 3.0%
| swing4 = {{decrease}} 1.7 {{wp|Percentage point|pp}}

<!-- DUP -->| image5 = {{CSS image crop|Image =Arlene Foster election infobox.jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader5 = {{wp|Arlene Foster}}
| leader_since5 = 17 December 2015
| party5 = {{wp|Democratic Unionist Party|DUP}}
| leaders_seat5 = ''Did not stand''{{refn|group=n|name=fosterseat|Arlene Foster sat as an {{wp|Member of the Northern Ireland Assembly|MLA}} in the {{wp|Northern Ireland Assembly}} for {{wp|Fermanagh and South Tyrone (Assembly constituency)|Fermanagh and South Tyrone}} prior to the collapse of the Assembly. The party's leader in the Commons was {{wp|Nigel Dodds}}, the MP for {{wp|Belfast North (UK Parliament constituency)|Belfast North}}.}}
| popular_vote5 = 292,316
| percentage5 = 0.9%
| swing5 = {{increase}} 0.3 {{wp|Percentage point|pp}}
| last_election5 = 8 seats, 0.6%
| seats5 = 10
| seat_change5 = {{increase}} 2
<!-- Sinn Féin -->| image6 = {{CSS image crop|Image =Gerry Adams election infobox.jpg|bSize = 120|cWidth = 120|cHeight = 160|oTop = 0|oLeft = 0}}
| leader6 = {{wp|Gerry Adams}}
| leader_since6 = 13 November 1983
| party6 = {{wp|Sinn Féin}}
| leaders_seat6 = ''Did not stand''{{refn|group=n|name=adamsseat|Gerry Adams sat as a {{wp|Teachta Dála|TD}} in {{wp|Dáil Éireann}} (lower house of the {{wp|Oireachtas|Irish Parliament}}) for {{wp|Louth (Dáil constituency)|Louth}}.}}
| popular_vote6 = 238,915
| percentage6 = 0.7%
| swing6 = {{increase}} 0.1 {{wp|Percentage point|pp}}
| last_election6 = 4 seats, 0.6%
| seats6 = 7{{refn|group=n|name=SFseats|Sinn Féin MPs abstain from taking their seats in the {{wp|British House of Commons}}.}}
| seat_change6 = {{increase}} 3
| map_image = File:2017UKElectionMap.svg
| map_size = 425px
| map_caption = A map of UK parliamentary constituencies, with each winner's constituency, percentage of victory.
| map2_image = UK House of Commons 2017-06-26.svg
| map2_size = 360px
| map2_caption = Composition of the {{wp|House of Commons of the United Kingdom|House of Commons}} after the election
| title = {{wp|Prime Minister of the United Kingdom|Prime Minister}}
| posttitle = Prime Minister after election
| before_election = {{wp|Theresa May}}
| before_party = Conservative Party (UK)
| after_election = {{wp|Theresa May}}
| after_party = Conservative Party (UK)
}}