# List of MPs elected in the 2015 United Kingdom general election

The 2015 general election took place on 7 May 2015 and saw each of Parliament's 650 constituencies return one Member of Parliament (MP) to the House of Commons. Parliament, which consists of the House of Lords and the elected House of Commons, was convened on 27 May at the Palace of Westminster by Queen Elizabeth II. It was dissolved just after midnight on 3 May 2017, being 25 working days ahead of the general election on 8 June 2017. The dissolution was originally scheduled for 2020, but took place almost three years early following a call for a snap election by Conservative Prime Minister Theresa May which received the necessary two-thirds majority in a 522 to 13 vote in the House of Commons on 19 April 2017. It was the shortest Parliament since 1974.
The 2015 general election resulted in a Conservative majority, a massive loss of seats for the Liberal Democrats, and all but three Scottish seats going to the SNP. The UK Independence Party elected their first MP at a general election. The Alliance Party of Northern Ireland and the Respect Party lost their singular seats that they had in the previous Parliament. The Ulster Unionist Party won back representation electing two MPs, having had none in the previous Parliament.
Notable newcomers to enter the House of Commons in this General Election included future Prime Ministers Rishi Sunak and Keir Starmer, as well as the future parliamentary leaders of the Scottish National Party and Plaid Cymru; Ian Blackford and Liz Saville Roberts. Other new MPs included; Chris Philp, Rebecca Long-Bailey, Angela Rayner, Antoinette Sandbach, Mhairi Black, Richard Burgon, Sue Hayman, Joanna Cherry, Oliver Dowden, Andrea Jenkyns, Suella Braverman, Chris Matheson, Amanda Milling, Heidi Allen, Stephen Kinnock, Jess Phillips, Ruth Smeeth, Kelly Tolhurst, Tulip Siddiq, Amanda Solloway, Craig Mackinlay, Alison Thewliss and Clive Lewis.
During the 2015–17 Parliament, John Bercow was the Speaker of the House of Commons, David Cameron and Theresa May served as Prime Minister, and Harriet Harman and Jeremy Corbyn served as Leader of Her Majesty's Most Loyal Opposition.

## House of Commons composition

Below is a graphical representation of the House of Commons showing a comparison of party strengths as it was directly after the 2015 general election. 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.
This table shows the number of MPs in each party:
| Affiliation | Affiliation | Members | Members |
| Affiliation | Affiliation | At 2015 election | At dissolution |
| | Conservative | 330 | 330 |
| | Labour | 232 | 229 |
| | SNP | 56 | 54 |
| | Liberal Democrats | 8 | 9 |
| | DUP | 8 | 8 |
| | Independent | 0 | 4 |
| | Sinn Féin | 4 | 4 |
| | Plaid Cymru | 3 | 3 |
| | SDLP | 3 | 3 |
| | UUP | 2 | 2 |
| | Green | 1 | 1 |
| | Ind. Unionist | 1 | 1 |
| | Speaker | 1 | 1 |
| | UKIP | 1 | 0 |
| Vacant seats | Vacant seats | 0 | 1 |
| Total | Total | 650 | 650 |
| Government majority | Government majority | 16 | 17 |

### Notes

* See here for a full list of changes during the fifty-sixth Parliament.
* In addition to the parties listed in the table above, the Co-operative Party was also represented in the House of Commons by Labour MPs sitting with the Labour Co-operative designation. The number of these MPs was 24 after the general election, and was 28 at dissolution.
* The actual government majority is calculated as Conservative MPs less all other parties. This calculation excludes the Speaker, Deputy Speakers (two Labour and one Conservative) and Sinn Féin (who follow a policy of abstentionism).

## List of MPs elected in the general election

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.
| Constituency | Party of incumbent before election | Member returned (2015) | Notes |
| Aberavon | Labour | The Hon. Stephen Kinnock (L) | Seat held, incumbent Hywel Francis stood down |
| Aberconwy | Conservative | Guto Bebb (C) | Seat held |
| Aberdeen North | Labour | Kirsty Blackman (SNP) | Seat gain, incumbent Frank Doran stood down |
| Aberdeen South | Labour | Callum McCaig (SNP) | Seat gain, defeated incumbent Dame Anne Begg |
| Airdrie and Shotts | Labour | Neil Gray (SNP) | Seat gain, defeated incumbent Pamela Nash |
| Aldershot | Conservative | Sir Gerald Howarth (C) | Seat held |
| Aldridge-Brownhills | Conservative | Wendy Morton (C) | Seat held, incumbent Sir Richard Shepherd stood down |
| Altrincham and Sale West | Conservative | Graham Brady (C) | Seat held |
| Alyn and Deeside | Labour | Mark Tami (L) | Seat held |
| Amber Valley | Conservative | Nigel Mills (C) | Seat held |
| Angus | SNP | Mike Weir (SNP) | Seat held |
| Arfon | Plaid Cymru | Hywel Williams (PC) | Seat held |
| Argyll and Bute | Liberal Democrats | Brendan O'Hara (SNP) | Seat gain, defeated incumbent Alan Reid |
| Arundel and South Downs | Conservative | Nick Herbert (C) | Seat held |
| Ashfield | Labour | Gloria De Piero (L) | Seat held |
| Ashford | Conservative | Damian Green (C) | Seat held |
| Ashton-under-Lyne | Labour | Angela Rayner (L) | Seat held, incumbent David Heyes stood down |
| Aylesbury | Conservative | David Lidington (C) | Seat held |
| Ayr, Carrick and Cumnock | Labour | Corri Wilson (SNP) | Seat gain, defeated incumbent Sandra Osborne |
| Banbury | Conservative | The Hon. Victoria Prentis (C) | Seat held, incumbent Sir Tony Baldry stood down |
| Banff and Buchan | SNP | Eilidh Whiteford (SNP) | Seat held |
| Barking | Labour | Margaret, Lady Hodge (L) | Seat held |
| Barnsley Central | Labour | Dan Jarvis (L) | Seat held |
| Barnsley East | Labour | Michael Dugher (L) | Seat held |
| Barrow and Furness | Labour Co-operative | John Woodcock (L Co-op) | Seat held |
| Basildon and Billericay | Conservative | John Baron (C) | Seat held |
| Basingstoke | Conservative | Maria Miller (C) | Seat held |
| Bassetlaw | Labour | John Mann (L) | Seat held |
| Bath | Liberal Democrats | Ben Howlett (C) | Seat gain, incumbent Don Foster stood down |
| Batley and Spen | Labour | Jo Cox (L) | Seat held, incumbent Mike Wood stood down |
| Battersea | Conservative | Jane Ellison (C) | Seat held |
| Beaconsfield | Conservative | Dominic Grieve (C) | Seat held |
| Beckenham | Conservative | Bob Stewart (C) | Seat held |
| Bedford | Conservative | Richard Fuller (C) | Seat held |
| Belfast East | Alliance | Gavin Robinson (DUP) | Seat gain, defeated incumbent Naomi Long |
| Belfast North | DUP | Nigel Dodds (DUP) | Seat held |
| Belfast South | SDLP | Alasdair McDonnell (SDLP) | Seat held |
| Belfast West | Sinn Féin | Paul Maskey (SF) | Seat held |
| Bermondsey and Old Southwark | Liberal Democrats | Neil Coyle (L) | Seat gain, defeated incumbent Simon Hughes |
| Berwick-upon-Tweed | Liberal Democrats | Anne-Marie Trevelyan (C) | Seat gain, incumbent Sir Alan Beith stood down |
| Berwickshire, Roxburgh and Selkirk | Liberal Democrats | Calum Kerr (SNP) | Seat gain, defeated incumbent Michael Moore |
| Bethnal Green and Bow | Labour | Rushanara Ali (L) | Seat held |
| Beverley and Holderness | Conservative | Graham Stuart (C) | Seat held |
| Bexhill and Battle | Conservative | Huw Merriman (C) | Seat held, incumbent Gregory Barker stood down |
| Bexleyheath and Crayford | Conservative | David Evennett (C) | Seat held |
| Birkenhead | Labour | Frank Field (L) | Seat held |
| Birmingham, Edgbaston | Labour | Gisela Stuart (L) | Seat held |
| Birmingham, Erdington | Labour | Jack Dromey (L) | Seat held |
| Birmingham, Hall Green | Labour | Roger Godsiff (L) | Seat held |
| Birmingham, Hodge Hill | Labour | Liam Byrne (L) | Seat held |
| Birmingham, Ladywood | Labour | Shabana Mahmood (L) | Seat held |
| Birmingham, Northfield | Labour | Richard Burden (L) | Seat held |
| Birmingham, Perry Barr | Labour | Khalid Mahmood (L) | Seat held |
| Birmingham, Selly Oak | Labour | Steve McCabe (L) | Seat held |
| Birmingham, Yardley | Liberal Democrats | Jess Phillips (L) | Seat gain, defeated incumbent John Hemming |
| Bishop Auckland | Labour | Helen Goodman (L) | Seat held |
| Blackburn | Independent | Kate Hollern (L) | Seat held, incumbent Jack Straw stood down |
| Blackley and Broughton | Labour | Graham Stringer (L) | Seat held |
| Blackpool North and Cleveleys | Conservative | Paul Maynard (C) | Seat held |
| Blackpool South | Labour | Gordon Marsden (L) | Seat held |
| Blaenau Gwent | Labour | Nick Smith (L) | Seat held |
| Blaydon | Labour | David Anderson (L) | Seat held |
| Blyth Valley | Labour | Ronnie Campbell (L) | Seat held |
| Bognor Regis and Littlehampton | Conservative | Nick Gibb (C) | Seat held |
| Bolsover | Labour | Dennis Skinner (L) | Seat held |
| Bolton North East | Labour | David Crausby (L) | Seat held |
| Bolton South East | Labour | Yasmin Qureshi (L) | Seat held |
| Bolton West | Labour | Chris Green (C) | Seat gain, defeated incumbent Julie Hilling |
| Bootle | Labour | Peter Dowd (L) | Seat held, incumbent Joe Benton stood down |
| Boston and Skegness | Conservative | Matt Warman (C) | Seat held, incumbent Mark Simmonds stood down |
| Bosworth | Conservative | David Tredinnick (C) | Seat held |
| Bournemouth East | Conservative | Tobias Ellwood (C) | Seat held |
| Bournemouth West | Conservative | Conor Burns (C) | Seat held |
| Bracknell | Conservative | Phillip Lee (C) | Seat held |
| Bradford East | Liberal Democrats | Imran Hussain (L) | Seat gain, defeated incumbent David Ward |
| Bradford South | Labour | Judith Cummins (L) | Seat held, incumbent Gerry Sutcliffe stood down |
| Bradford West | Respect | Naz Shah (L) | Seat gain, defeated incumbent George Galloway |
| Braintree | Conservative | James Cleverly (C) | Seat held, incumbent Brooks Newmark stood down |
| Brecon and Radnorshire | Liberal Democrats | Christopher Davies (C) | Seat gain, defeated incumbent Roger Hugh Williams |
| Brent Central | Liberal Democrats | Dawn Butler (L) | Seat gain, incumbent Sarah Teather stood down |
| Brent North | Labour | Barry Gardiner (L) | Seat held |
| Brentford and Isleworth | Conservative | Ruth Cadbury (L) | Seat gain, defeated incumbent Mary Macleod |
| Brentwood and Ongar | Conservative | Sir Eric Pickles (C) | Seat held |
| Bridgend | Labour | Madeleine Moon (L) | Seat held |
| Bridgwater and West Somerset | Conservative | Ian Liddell-Grainger (C) | Seat held |
| Brigg and Goole | Conservative | Andrew Percy (C) | Seat held |
| Brighton Kemptown | Conservative | Simon Kirby (C) | Seat held |
| Brighton Pavilion | Green Party | Caroline Lucas (Green) | Seat held |
| Bristol East | Labour | Kerry McCarthy (L) | Seat held |
| Bristol North West | Conservative | Charlotte Leslie (C) | Seat held |
| Bristol South | Labour | Karin Smyth (L) | Seat held, incumbent Dame Dawn Primarolo stood down |
| Bristol West | Liberal Democrats | Thangam Debbonaire (L) | Seat gain, defeated incumbent Stephen Williams |
| Broadland | Conservative | Keith Simpson (C) | Seat held |
| Bromley and Chislehurst | Conservative | Bob Neill (C) | Seat held |
| Bromsgrove | Conservative | Sajid Javid (C) | Seat held |
| Broxbourne | Conservative | Charles Walker (C) | Seat held |
| Broxtowe | Conservative | Anna Soubry (C) | Seat held |
| Buckingham | The Speaker seeking re-election | John Bercow (Speaker) | Seat held |
| Burnley | Liberal Democrats | Julie Cooper (L) | Seat gain, defeated incumbent Gordon Birtwistle |
| Burton | Conservative | Andrew Griffiths (C) | Seat held |
| Bury North | Conservative | David Nuttall (C) | Seat held |
| Bury South | Labour | Ivan Lewis (L) | Seat held |
| Bury St Edmunds | Conservative | Jo Churchill (C) | Seat held, incumbent David Ruffley stood down |
| Caerphilly | Labour | Wayne David (L) | Seat held |
| Caithness, Sutherland and Easter Ross | Liberal Democrats | Paul Monaghan (SNP) | Seat gain, defeated incumbent Viscount Thurso |
| Calder Valley | Conservative | Craig Whittaker (C) | Seat held |
| Camberwell and Peckham | Labour | Harriet Harman (L) | Seat held |
| Camborne and Redruth | Conservative | George Eustice (C) | Seat held |
| Cambridge | Liberal Democrats | Daniel Zeichner (L) | Seat gain, defeated incumbent Julian Huppert |
| Cannock Chase | Conservative | Amanda Milling (C) | Seat held, incumbent Aidan Burley stood down |
| Canterbury | Conservative | Julian Brazier (C) | Seat held |
| Cardiff Central | Liberal Democrats | Jo Stevens (L) | Seat gain, defeated incumbent Jenny Willott |
| Cardiff North | Conservative | Craig Williams (C) | Seat held, incumbent Jonathan Evans stood down |
| Cardiff South and Penarth | Labour Co-operative | Stephen Doughty (L Co-op) | Seat held |
| Cardiff West | Labour | Kevin Brennan (L) | Seat held |
| Carlisle | Conservative | John Stevenson (C) | Seat held |
| Carmarthen East and Dinefwr | Plaid Cymru | Jonathan Edwards (PC) | Seat held |
| Carmarthen West and South Pembrokeshire | Conservative | Simon Hart (C) | Seat held |
| Carshalton and Wallington | Liberal Democrats | Tom Brake (LD) | Seat held |
| Castle Point | Conservative | Rebecca Harris (C) | Seat held |
| Central Ayrshire | Labour | Philippa Whitford (SNP) | Seat gain, defeated incumbent Brian Donohoe |
| Central Devon | Conservative | Mel Stride (C) | Seat held |
| Central Suffolk and North Ipswich | Conservative | Daniel Poulter (C) | Seat held |
| Ceredigion | Liberal Democrats | Mark Williams (LD) | Seat held |
| Charnwood | Conservative | Edward Argar (C) | Seat held, incumbent Stephen Dorrell stood down |
| Chatham and Aylesford | Conservative | Tracey Crouch (C) | Seat held |
| Cheadle | Liberal Democrats | Mary Robinson (C) | Seat gain, defeated incumbent Mark Hunter |
| Chelmsford | Conservative | Sir Simon Burns (C) | Seat held |
| Chelsea and Fulham | Conservative | Greg Hands (C) | Seat held |
| Cheltenham | Liberal Democrats | Alex Chalk (C) | Seat gain, defeated incumbent Martin Horwood |
| Chesham and Amersham | Conservative | Cheryl Gillan (C) | Seat held |
| Chesterfield | Labour | Toby Perkins (L) | Seat held |
| Chichester | Conservative | Andrew Tyrie (C) | Seat held |
| Chingford and Woodford Green | Conservative | Iain Duncan Smith (C) | Seat held |
| Chippenham | Liberal Democrats | Michelle Donelan (C) | Seat gain, defeated incumbent Duncan Hames |
| Chipping Barnet | Conservative | Theresa Villiers (C) | Seat held |
| Chorley | Labour | Lindsay Hoyle (L) | Seat held |
| Christchurch | Conservative | Christopher Chope (C) | Seat held |
| Cities of London and Westminster | Conservative | Mark Field (C) | Seat held |
| City of Chester | Conservative | Chris Matheson (L) | Seat gain, defeated incumbent Stephen Mosley |
| Clacton | UKIP | Douglas Carswell (UKIP) | Seat held |
| Cleethorpes | Conservative | Martin Vickers (C) | Seat held |
| Clwyd South | Labour | Susan Elan Jones (L) | Seat held |
| Clwyd West | Conservative | David Jones (C) | Seat held |
| Coatbridge, Chryston and Bellshill | Labour | Phil Boswell (SNP) | Seat gain, defeated incumbent Tom Clarke |
| Colchester | Liberal Democrats | Will Quince (C) | Seat gain, defeated incumbent Sir Bob Russell |
| Colne Valley | Conservative | Jason McCartney (C) | Seat held |
| Congleton | Conservative | Fiona Bruce (C) | Seat held |
| Copeland | Labour | Jamie Reed (L) | Seat held |
| Corby | Labour Co-operative | Tom Pursglove (C) | Seat gain, defeated incumbent Andy Sawford |
| The Cotswolds | Conservative | Geoffrey Clifton-Brown (C) | Seat held |
| Coventry North East | Labour | Colleen Fletcher (L) | Seat held, incumbent Bob Ainsworth stood down |
| Coventry North West | Labour | Geoffrey Robinson (L) | Seat held |
| Coventry South | Labour | Jim Cunningham (L) | Seat held |
| Crawley | Conservative | Henry Smith (C) | Seat held |
| Crewe and Nantwich | Conservative | Edward Timpson (C) | Seat held |
| Croydon Central | Conservative | Gavin Barwell (C) | Seat held |
| Croydon North | Labour Co-operative | Steve Reed (L Co-op) | Seat held |
| Croydon South | Conservative | Chris Philp (C) | Seat held, incumbent Sir Richard Ottaway stood down |
| Cumbernauld, Kilsyth and Kirkintilloch East | Labour | Stuart McDonald (SNP) | Seat gain, defeated incumbent Gregg McClymont |
| Cynon Valley | Labour | Ann Clwyd (L) | Seat held |
| Dagenham and Rainham | Labour | Jon Cruddas (L) | Seat held |
| Darlington | Labour | Jenny Chapman (L) | Seat held |
| Dartford | Conservative | Gareth Johnson (C) | Seat held |
| Daventry | Conservative | Chris Heaton-Harris (C) | Seat held |
| Delyn | Labour | David Hanson (L) | Seat held |
| Denton and Reddish | Labour | Andrew Gwynne (L) | Seat held |
| Derby North | Labour | Amanda Solloway (C) | Seat gain, defeated incumbent Chris Williamson |
| Derby South | Labour | Dame Margaret Beckett (L) | Seat held |
| Derbyshire Dales | Conservative | Patrick McLoughlin (C) | Seat held |
| Devizes | Conservative | Claire Perry (C) | Seat held |
| Dewsbury | Conservative | Paula Sherriff (L) | Seat gain, defeated incumbent Simon Reevell |
| Don Valley | Labour | Caroline Flint (L) | Seat held |
| Doncaster Central | Labour | Rosie Winterton (L) | Seat held |
| Doncaster North | Labour | Ed Miliband (L) | Seat held |
| Dover | Conservative | Charlie Elphicke (C) | Seat held |
| Dudley North | Labour | Ian Austin (L) | Seat held |
| Dudley South | Conservative | Mike Wood (C) | Seat held, incumbent Chris Kelly stood down |
| Dulwich and West Norwood | Labour | Helen Hayes (L) | Seat held, incumbent Dame Tessa Jowell stood down |
| Dumfries and Galloway | Labour | Richard Arkless (SNP) | Seat gain, defeated incumbent Russell Brown |
| Dumfriesshire, Clydesdale and Tweeddale | Conservative | David Mundell (C) | Seat held |
| Dundee East | SNP | Stewart Hosie (SNP) | Seat held |
| Dundee West | Labour | Chris Law (SNP) | Seat gain, incumbent Jim McGovern stood down |
| Dunfermline and West Fife | Labour | Douglas Chapman (SNP) | Seat gain, defeated incumbent Thomas Docherty |
| City of Durham | Labour | Roberta Blackman-Woods (L) | Seat held |
| Dwyfor Meirionnydd | Plaid Cymru | Liz Saville-Roberts (PC) | Seat held, incumbent Elfyn Llwyd stood down |
| Ealing Central and Acton | Conservative | Rupa Huq (L) | Seat gain, defeated incumbent Angie Bray |
| Ealing North | Labour | Stephen Pound (L) | Seat held |
| Ealing Southall | Labour | Virendra Sharma (L) | Seat held |
| Easington | Labour | Grahame Morris (L) | Seat held |
| East Antrim | DUP | Sammy Wilson (DUP) | Seat held |
| East Devon | Conservative | Hugo Swire (C) | Seat held |
| East Dunbartonshire | Liberal Democrats | John Nicolson (SNP) | Seat gain, defeated incumbent Jo Swinson |
| East Ham | Labour | Stephen Timms (L) | Seat held |
| East Hampshire | Conservative | Damian Hinds (C) | Seat held |
| East Kilbride, Strathaven and Lesmahagow | Labour | Lisa Cameron (SNP) | Seat gain, defeated incumbent Michael McCann |
| East Londonderry | DUP | Gregory Campbell (DUP) | Seat held |
| East Lothian | Labour | George Kerevan (SNP) | Seat gain, defeated incumbent Fiona O'Donnell |
| East Renfrewshire | Labour | Kirsten Oswald (SNP) | Seat gain, defeated incumbent Jim Murphy |
| East Surrey | Conservative | Sam Gyimah (C) | Seat held |
| East Worthing and Shoreham | Conservative | Tim Loughton (C) | Seat held |
| East Yorkshire | Conservative | Sir Greg Knight (C) | Seat held |
| Eastbourne | Liberal Democrats | Caroline Ansell (C) | Seat gain, defeated incumbent Stephen Lloyd |
| Eastleigh | Liberal Democrats | Mims Davies (C) | Seat gain, defeated incumbent Mike Thornton |
| Eddisbury | Conservative | Antoinette Sandbach (C) | Seat held, incumbent Stephen O'Brien stood down |
| Edinburgh East | Labour | Tommy Sheppard (SNP) | Seat gain, defeated incumbent Sheila Gilmore |
| Edinburgh North and Leith | Labour Co-operative | Deidre Brock (SNP) | Seat gain, defeated incumbent Mark Lazarowicz |
| Edinburgh South | Labour | Ian Murray (L) | Seat held |
| Edinburgh South West | Labour | Joanna Cherry (SNP) | Seat gain, incumbent Alistair Darling stood down |
| Edinburgh West | Liberal Democrats | Michelle Thomson (SNP) | Seat gain, defeated incumbent Michael Crockart |
| Edmonton | Labour Co-operative | Kate Osamor (L Co-op) | Seat held, incumbent Andy Love stood down |
| Ellesmere Port and Neston | Labour | Justin Madders (L) | Seat held, incumbent Andrew Miller stood down |
| Elmet and Rothwell | Conservative | Alec Shelbrooke (C) | Seat held |
| Eltham | Labour | Clive Efford (L) | Seat held |
| Enfield North | Conservative | Joan Ryan (L) | Seat gain, defeated incumbent Nick de Bois |
| Enfield Southgate | Conservative | David Burrowes (C) | Seat held |
| Epping Forest | Conservative | Eleanor Laing (C) | Seat held |
| Epsom and Ewell | Conservative | Chris Grayling (C) | Seat held |
| Erewash | Conservative | Maggie Throup (C) | Seat held, incumbent Jessica Lee stood down |
| Erith and Thamesmead | Labour | Teresa Pearce (L) | Seat held |
| Esher and Walton | Conservative | Dominic Raab (C) | Seat held |
| Exeter | Labour | Ben Bradshaw (L) | Seat held |
| Falkirk | Independent | John McNally (SNP) | Seat gain, incumbent Eric Joyce (originally a Labour MP) stood down |
| Fareham | Conservative | Suella Fernandes (C) | Seat held, incumbent Mark Hoban stood down |
| Faversham and Mid Kent | Conservative | Helen Whately (C) | Seat held, incumbent Sir Hugh Robertson stood down |
| Feltham and Heston | Labour Co-operative | Seema Malhotra (L Co-op) | Seat held |
| Fermanagh and South Tyrone | Sinn Féin | Tom Elliott (UUP) | Seat gain, defeated incumbent Michelle Gildernew |
| Filton and Bradley Stoke | Conservative | Jack Lopresti (C) | Seat held |
| Finchley and Golders Green | Conservative | Mike Freer (C) | Seat held |
| Folkestone and Hythe | Conservative | Damian Collins (C) | Seat held |
| Forest of Dean | Conservative | Mark Harper (C) | Seat held |
| Foyle | SDLP | Mark Durkan (SDLP) | Seat held |
| Fylde | Conservative | Mark Menzies (C) | Seat held |
| Gainsborough | Conservative | Sir Edward Leigh (C) | Seat held |
| Garston and Halewood | Labour | Maria Eagle (L) | Seat held |
| Gateshead | Labour | Ian Mearns (L) | Seat held |
| Gedling | Labour | Vernon Coaker (L) | Seat held |
| Gillingham and Rainham | Conservative | Rehman Chishti (C) | Seat held |
| Glasgow Central | Labour | Alison Thewliss (SNP) | Seat gain, defeated incumbent Anas Sarwar |
| Glasgow East | Labour | Natalie McGarry (SNP) | Seat gain, defeated incumbent Margaret Curran |
| Glasgow North | Labour | Patrick Grady (SNP) | Seat gain, defeated incumbent Ann McKechin |
| Glasgow North East | Labour | Anne McLaughlin (SNP) | Seat gain, defeated incumbent Willie Bain |
| Glasgow North West | Labour | Carol Monaghan (SNP) | Seat gain, defeated incumbent John Robertson |
| Glasgow South | Labour | Stewart McDonald (SNP) | Seat gain, defeated incumbent Tom Harris |
| Glasgow South West | Labour Co-operative | Chris Stephens (SNP) | Seat gain, defeated incumbent Ian Davidson |
| Glenrothes | Labour | Peter Grant (SNP) | Seat gain, incumbent Lindsay Roy stood down |
| Gloucester | Conservative | Richard Graham (C) | Seat held |
| Gordon | Liberal Democrats | Alex Salmond (SNP) | Seat gain, incumbent Sir Malcolm Bruce stood down |
| Gosport | Conservative | Caroline Dinenage (C) | Seat held |
| Gower | Labour | Byron Davies (C) | Seat gain, incumbent Martin Caton stood down |
| Grantham and Stamford | Conservative | Nicholas Boles (C) | Seat held |
| Gravesham | Conservative | Adam Holloway (C) | Seat held |
| Great Grimsby | Labour | Melanie Onn (L) | Seat held, incumbent Austin Mitchell stood down |
| Great Yarmouth | Conservative | Brandon Lewis (C) | Seat held |
| Greenwich and Woolwich | Labour | Matthew Pennycook (L) | Seat held, incumbent Nick Raynsford stood down |
| Guildford | Conservative | Anne Milton (C) | Seat held |
| Hackney North and Stoke Newington | Labour | Diane Abbott (L) | Seat held |
| Hackney South and Shoreditch | Labour Co-operative | Meg Hillier (L Co-op) | Seat held |
| Halesowen and Rowley Regis | Conservative | James Morris (C) | Seat held |
| Halifax | Labour Co-operative | Holly Lynch (L) | Seat held, incumbent Linda Riordan stood down |
| Haltemprice and Howden | Conservative | David Davis (C) | Seat held |
| Halton | Labour | Derek Twigg (L) | Seat held |
| Hammersmith | Labour | Andy Slaughter (L) | Seat held |
| Hampstead and Kilburn | Labour | Tulip Siddiq (L) | Seat held, incumbent Glenda Jackson stood down |
| Harborough | Conservative | Sir Edward Garnier (C) | Seat held |
| Harlow | Conservative | Robert Halfon (C) | Seat held |
| Harrogate and Knaresborough | Conservative | Andrew Jones (C) | Seat held |
| Harrow East | Conservative | Bob Blackman (C) | Seat held |
| Harrow West | Labour Co-operative | Gareth Thomas (L Co-op) | Seat held |
| Hartlepool | Labour | Iain Wright (L) | Seat held |
| Harwich and North Essex | Conservative | The Hon. Bernard Jenkin (C) | Seat held |
| Hastings and Rye | Conservative | Amber Rudd (C) | Seat held |
| Havant | Conservative | Alan Mak (C) | Seat held, incumbent David Willetts stood down |
| Hayes and Harlington | Labour | John McDonnell (L) | Seat held |
| Hazel Grove | Liberal Democrats | William Wragg (C) | Seat gain, incumbent Sir Andrew Stunell stood down |
| Hemel Hempstead | Conservative | Mike Penning (C) | Seat held |
| Hemsworth | Labour | Jon Trickett (L) | Seat held |
| Hendon | Conservative | Matthew Offord (C) | Seat held |
| Henley | Conservative | John Howell (C) | Seat held |
| Hereford and South Herefordshire | Conservative | Jesse Norman (C) | Seat held |
| Hertford and Stortford | Conservative | Mark Prisk (C) | Seat held |
| Hertsmere | Conservative | Oliver Dowden (C) | Seat held, incumbent James Clappison stood down |
| Hexham | Conservative | Guy Opperman (C) | Seat held |
| Heywood and Middleton | Labour | Liz McInnes (L) | Seat held |
| High Peak | Conservative | Andrew Bingham (C) | Seat held |
| Hitchin and Harpenden | Conservative | Peter Lilley (C) | Seat held |
| Holborn and St Pancras | Labour | Keir Starmer (L) | Seat held, incumbent Frank Dobson stood down |
| Hornchurch and Upminster | Conservative | Dame Angela Watkinson (C) | Seat held |
| Hornsey and Wood Green | Liberal Democrats | Catherine West (L) | Seat gain, defeated incumbent Lynne Featherstone |
| Horsham | Conservative | Jeremy Quin (C) | Seat held, incumbent Francis Maude stood down |
| Houghton and Sunderland South | Labour | Bridget Phillipson (L) | Seat held |
| Hove | Conservative | Peter Kyle (L) | Seat gain, incumbent Mike Weatherley stood down |
| Huddersfield | Labour Co-operative | Barry Sheerman (L Co-op) | Seat held |
| Huntingdon | Conservative | Jonathan Djanogly (C) | Seat held |
| Hyndburn | Labour | Graham Jones (L) | Seat held |
| Ilford North | Conservative | Wes Streeting (L) | Seat gain, defeated incumbent Lee Scott |
| Ilford South | Labour Co-operative | Mike Gapes (L Co-op) | Seat held |
| Inverclyde | Labour | Ronnie Cowan (SNP) | Seat gain, defeated incumbent Iain McKenzie |
| Inverness, Nairn, Badenoch and Strathspey | Liberal Democrats | Drew Hendry (SNP) | Seat gain, defeated incumbent Danny Alexander |
| Ipswich | Conservative | The Hon. Ben Gummer (C) | Seat held |
| Isle of Wight | Conservative | Andrew Turner (C) | Seat held |
| Islington North | Labour | Jeremy Corbyn (L) | Seat held |
| Islington South and Finsbury | Labour | Emily Thornberry (L) | Seat held |
| Islwyn | Labour Co-operative | Chris Evans (L Co-op) | Seat held |
| Jarrow | Labour | Stephen Hepburn (L) | Seat held |
| Keighley | Conservative | Kris Hopkins (C) | Seat held |
| Kenilworth and Southam | Conservative | Jeremy Wright (C) | Seat held |
| Kensington | Independent | Victoria, Lady Borwick (C) | Seat held, incumbent Sir Malcolm Rifkind stood down |
| Kettering | Conservative | Philip Hollobone (C) | Seat held |
| Kilmarnock and Loudoun | Labour Co-operative | Alan Brown (SNP) | Seat gain, defeated incumbent Cathy Jamieson |
| Kingston and Surbiton | Liberal Democrats | James Berry (C) | Seat gain, defeated incumbent Ed Davey |
| Kingston upon Hull East | Labour | Karl Turner (L) | Seat held |
| Kingston upon Hull North | Labour | Diana Johnson (L) | Seat held |
| Kingston upon Hull West and Hessle | Labour | Alan Johnson (L) | Seat held |
| Kingswood | Conservative | Chris Skidmore (C) | Seat held |
| Kirkcaldy and Cowdenbeath | Labour | Roger Mullin (SNP) | Seat gain, incumbent Gordon Brown stood down |
| Knowsley | Labour | George Howarth (L) | Seat held |
| Lagan Valley | DUP | Jeffrey Donaldson (DUP) | Seat held |
| Lanark and Hamilton East | Labour | Angela Crawley (SNP) | Seat gain, defeated incumbent Jimmy Hood |
| Lancaster and Fleetwood | Conservative | Cat Smith (L) | Seat gain, defeated incumbent Eric Ollerenshaw |
| Leeds Central | Labour | Hilary Benn (L) | Seat held |
| Leeds East | Labour | Richard Burgon (L) | Seat held, incumbent George Mudie stood down |
| Leeds North East | Labour | Fabian Hamilton (L) | Seat held |
| Leeds North West | Liberal Democrats | Greg Mulholland (LD) | Seat held |
| Leeds West | Labour | Rachel Reeves (L) | Seat held |
| Leicester East | Labour | Keith Vaz (L) | Seat held |
| Leicester South | Labour Co-operative | Jon Ashworth (L Co-op) | Seat held |
| Leicester West | Labour | Liz Kendall (L) | Seat held |
| Leigh | Labour | Andy Burnham (L) | Seat held |
| Lewes | Liberal Democrats | Maria Caulfield (C) | Seat gain, defeated incumbent Norman Baker |
| Lewisham East | Labour | Heidi Alexander (L) | Seat held |
| Lewisham West and Penge | Labour | Jim Dowd (L) | Seat held |
| Lewisham Deptford | Labour | Vicky Foxcroft (L) | Seat held, incumbent Dame Joan Ruddock stood down |
| Leyton and Wanstead | Labour | John Cryer (L) | Seat held |
| Lichfield | Conservative | Michael Fabricant (C) | Seat held |
| Lincoln | Conservative | Karl McCartney (C) | Seat held |
| Linlithgow and East Falkirk | Labour | Martyn Day (SNP) | Seat gain, defeated incumbent Michael Connarty |
| Liverpool Riverside | Labour Co-operative | Louise Ellman (L Co-op) | Seat held |
| Liverpool Walton | Labour | Steve Rotheram (L) | Seat held |
| Liverpool Wavertree | Labour Co-operative | Luciana Berger (L Co-op) | Seat held |
| Liverpool West Derby | Labour Co-operative | Stephen Twigg (L Co-op) | Seat held |
| Livingston | Labour | Hannah Bardell (SNP) | Seat gain, defeated incumbent Graeme Morrice |
| Llanelli | Labour | Nia Griffith (L) | Seat held |
| Loughborough | Conservative | Nicky Morgan (C) | Seat held |
| Louth and Horncastle | Conservative | Victoria Atkins (C) | Seat held, incumbent Sir Peter Tapsell stood down |
| Ludlow | Conservative | Philip Dunne (C) | Seat held |
| Luton North | Labour | Kelvin Hopkins (L) | Seat held |
| Luton South | Labour Co-operative | Gavin Shuker (L Co-op) | Seat held |
| Macclesfield | Conservative | David Rutley (C) | Seat held |
| Maidenhead | Conservative | Theresa May (C) | Seat held |
| Maidstone and The Weald | Conservative | Helen Grant (C) | Seat held |
| Makerfield | Labour | Yvonne Fovargue (L) | Seat held |
| Maldon | Conservative | John Whittingdale (C) | Seat held |
| Manchester Central | Labour Co-operative | Lucy Powell (L Co-op) | Seat held |
| Manchester, Gorton | Labour | Sir Gerald Kaufman (L) | Seat held |
| Manchester Withington | Liberal Democrats | Jeff Smith (L) | Seat gain, defeated incumbent John Leech |
| Mansfield | Labour | Sir Alan Meale (L) | Seat held |
| Meon Valley | Conservative | George Hollingbery (C) | Seat held |
| Meriden | Conservative | Caroline Spelman (C) | Seat held |
| Merthyr Tydfil and Rhymney | Labour | Gerald Jones (L) | Seat held, incumbent Dai Havard stood down |
| Mid Bedfordshire | Conservative | Nadine Dorries (C) | Seat held |
| Mid Derbyshire | Conservative | Pauline Latham (C) | Seat held |
| Mid Dorset and North Poole | Liberal Democrats | Michael Tomlinson (C) | Seat gain, incumbent Annette Brooke stood down |
| Mid Norfolk | Conservative | George Freeman (C) | Seat held |
| Mid Sussex | Conservative | Sir Nicholas Soames (C) | Seat held |
| Mid Ulster | Sinn Féin | Francie Molloy (SF) | Seat held |
| Mid Worcestershire | Conservative | Nigel Huddleston (C) | Seat held, incumbent Sir Peter Luff stood down |
| Middlesbrough | Labour | Andy McDonald (L) | Seat held |
| Middlesbrough South and East Cleveland | Labour | Tom Blenkinsop (L) | Seat held |
| Midlothian | Labour | Owen Thompson (SNP) | Seat gain, incumbent David Hamilton stood down |
| Milton Keynes North | Conservative | Mark Lancaster (C) | Seat held |
| Milton Keynes South | Conservative | Iain Stewart (C) | Seat held |
| Mitcham and Morden | Labour | Siobhain McDonagh (L) | Seat held |
| Mole Valley | Conservative | Sir Paul Beresford (C) | Seat held |
| Monmouth | Conservative | David Davies (C) | Seat held |
| Montgomeryshire | Conservative | Glyn Davies (C) | Seat held |
| Moray | SNP | Angus Robertson (SNP) | Seat held |
| Morecambe and Lunesdale | Conservative | David Morris (C) | Seat held |
| Morley and Outwood | Labour Co-operative | Andrea Jenkyns (C) | Seat gain, defeated incumbent Ed Balls |
| Motherwell and Wishaw | Labour | Marion Fellows (SNP) | Seat gain, defeated incumbent Frank Roy |
| Na h-Eileanan an Iar (Western Isles) | SNP | Angus MacNeil (SNP) | Seat held |
| Neath | Labour | Christina Rees (L) | Seat held, incumbent Peter Hain stood down |
| New Forest East | Conservative | Julian Lewis (C) | Seat held |
| New Forest West | Conservative | Desmond Swayne (C) | Seat held |
| Newark | Conservative | Robert Jenrick (C) | Seat held |
| Newbury | Conservative | Richard Benyon (C) | Seat held |
| Newcastle upon Tyne Central | Labour | Chinyelu Onwurah (L) | Seat held |
| Newcastle upon Tyne East | Labour | Nick Brown (L) | Seat held |
| Newcastle upon Tyne North | Labour | Catherine McKinnell (L) | Seat held |
| Newcastle-under-Lyme | Labour | Paul Farrelly (L) | Seat held |
| Newport East | Labour | Jessica Morden (L) | Seat held |
| Newport West | Labour | Paul Flynn (L) | Seat held |
| Newry and Armagh | Sinn Féin | Mickey Brady (SF) | Seat held, incumbent Conor Murphy stood down |
| Newton Abbot | Conservative | Anne Marie Morris (C) | Seat held |
| Normanton, Pontefract and Castleford | Labour | Yvette Cooper (L) | Seat held |
| North Antrim | DUP | The Hon. Ian Paisley, Jr. (DUP) | Seat held |
| North Ayrshire and Arran | Labour | Patricia Gibson (SNP) | Seat gain, defeated incumbent Katy Clark |
| North Cornwall | Liberal Democrats | Scott Mann (C) | Seat gain, defeated incumbent Dan Rogerson |
| North Devon | Liberal Democrats | Peter Heaton-Jones (C) | Seat gain, defeated incumbent Sir Nick Harvey |
| North Dorset | Conservative | Simon Hoare (C) | Seat held, incumbent Robert Walter stood down |
| North Down | Independent Unionist | Sylvia, Lady Hermon (Ind) | Seat held |
| North Durham | Labour | Kevan Jones (L) | Seat held |
| North East Bedfordshire | Conservative | Alistair Burt (C) | Seat held |
| North East Cambridgeshire | Conservative | Steve Barclay (C) | Seat held |
| North East Derbyshire | Labour | Natascha Engel (L) | Seat held |
| North East Fife | Liberal Democrats | Stephen Gethins (SNP) | Seat gain, incumbent Sir Menzies Campbell stood down |
| North East Hampshire | Conservative | Ranil Jayawardena (C) | Seat held, incumbent James Arbuthnot stood down |
| North East Hertfordshire | Conservative | Sir Oliver Heald (C) | Seat held |
| North East Somerset | Conservative | The Hon. Jacob Rees-Mogg (C) | Seat held |
| North Herefordshire | Conservative | Bill Wiggin (C) | Seat held |
| North Norfolk | Liberal Democrats | Norman Lamb (LD) | Seat held |
| North Shropshire | Conservative | Owen Paterson (C) | Seat held |
| North Somerset | Conservative | Liam Fox (C) | Seat held |
| North Swindon | Conservative | Justin Tomlinson (C) | Seat held |
| North Thanet | Conservative | Sir Roger Gale (C) | Seat held |
| North Tyneside | Labour | Mary Glindon (L) | Seat held |
| North Warwickshire | Conservative | Craig Tracey (C) | Seat held, incumbent Dan Byles stood down |
| North West Cambridgeshire | Conservative | Shailesh Vara (C) | Seat held |
| North West Durham | Labour | Pat Glass (L) | Seat held |
| North West Hampshire | Conservative | Kit Malthouse (C) | Seat held, incumbent Sir George Young, Bt stood down |
| North West Leicestershire | Conservative | Andrew Bridgen (C) | Seat held |
| North West Norfolk | Conservative | Henry Bellingham (C) | Seat held |
| North Wiltshire | Conservative | James Gray (C) | Seat held |
| Northampton North | Conservative | Michael Ellis (C) | Seat held |
| Northampton South | Conservative | David Mackintosh (C) | Seat held, incumbent Brian Binley stood down |
| Norwich North | Conservative | Chloe Smith (C) | Seat held |
| Norwich South | Liberal Democrats | Clive Lewis (L) | Seat gain, defeated incumbent Simon Wright |
| Nottingham East | Labour Co-operative | Chris Leslie (L Co-op) | Seat held |
| Nottingham North | Labour | Graham Allen (L) | Seat held |
| Nottingham South | Labour | Lilian Greenwood (L) | Seat held |
| Nuneaton | Conservative | Marcus Jones (C) | Seat held |
| Ochil and South Perthshire | Labour | Tasmina Ahmed-Sheikh (SNP) | Seat gain, defeated incumbent Gordon Banks |
| Ogmore | Labour | Huw Irranca-Davies (L) | Seat held |
| Old Bexley and Sidcup | Conservative | James Brokenshire (C) | Seat held |
| Oldham East and Saddleworth | Labour | Debbie Abrahams (L) | Seat held |
| Oldham West and Royton | Labour | Michael Meacher (L) | Seat held |
| Orkney and Shetland | Liberal Democrats | Alistair Carmichael (LD) | Seat held |
| Orpington | Conservative | Jo Johnson (C) | Seat held |
| Oxford East | Labour | Andrew Smith (L) | Seat held |
| Oxford West and Abingdon | Conservative | Nicola Blackwood (C) | Seat held |
| Paisley and Renfrewshire North | Labour | Gavin Newlands (SNP) | Seat gain, defeated incumbent Jim Sheridan |
| Paisley and Renfrewshire South | Labour | Mhairi Black (SNP) | Seat gain, defeated incumbent Douglas Alexander |
| Pendle | Conservative | Andrew Stephenson (C) | Seat held |
| Penistone and Stocksbridge | Labour | Angela Smith (L) | Seat held |
| Penrith and The Border | Conservative | Rory Stewart (C) | Seat held |
| Perth and North Perthshire | SNP | Pete Wishart (SNP) | Seat held |
| Peterborough | Conservative | Stewart Jackson (C) | Seat held |
| Plymouth, Moor View | Labour | Johnny Mercer (C) | Seat gain, defeated incumbent Alison Seabeck |
| Plymouth, Sutton and Devonport | Conservative | Oliver Colvile (C) | Seat held |
| Pontypridd | Labour | Owen Smith (L) | Seat held |
| Poole | Conservative | Robert Syms (C) | Seat held |
| Poplar and Limehouse | Labour | Jim Fitzpatrick (L) | Seat held |
| Portsmouth North | Conservative | Penny Mordaunt (C) | Seat held |
| Portsmouth South | Independent | Flick Drummond (C) | Seat gain, defeated incumbent Mike Hancock (originally a Liberal Democrat MP) |
| Preseli Pembrokeshire | Conservative | Stephen Crabb (C) | Seat held |
| Preston | Labour Co-operative | Mark Hendrick (L Co-op) | Seat held |
| Pudsey | Conservative | Stuart Andrew (C) | Seat held |
| Putney | Conservative | Justine Greening (C) | Seat held |
| Rayleigh and Wickford | Conservative | Mark Francois (C) | Seat held |
| Reading East | Conservative | Rob Wilson (C) | Seat held |
| Reading West | Conservative | Alok Sharma (C) | Seat held |
| Redcar | Liberal Democrats | Anna Turley (L Co-op) | Seat gain, incumbent Ian Swales stood down |
| Redditch | Conservative | Karen Lumley (C) | Seat held |
| Reigate | Conservative | Crispin Blunt (C) | Seat held |
| Rhondda | Labour | Chris Bryant (L) | Seat held |
| Ribble Valley | Conservative | Nigel Evans (C) | Seat held |
| Richmond (Yorks) | Conservative | Rishi Sunak (C) | Seat held, incumbent William Hague stood down |
| Richmond Park | Conservative | Zac Goldsmith (C) | Seat held |
| Rochdale | Labour | Simon Danczuk (L) | Seat held |
| Rochester and Strood | UKIP | Kelly Tolhurst (C) | Seat gain, defeated incumbent Mark Reckless |
| Rochford and Southend East | Conservative | James Duddridge (C) | Seat held |
| Romford | Conservative | Andrew Rosindell (C) | Seat held |
| Romsey and Southampton North | Conservative | Caroline Nokes (C) | Seat held |
| Ross, Skye and Lochaber | Liberal Democrats | Ian Blackford (SNP) | Seat gain, defeated incumbent Charles Kennedy |
| Rossendale and Darwen | Conservative | Jake Berry (C) | Seat held |
| Rother Valley | Labour | Sir Kevin Barron (L) | Seat held |
| Rotherham | Labour | Sarah Champion (L) | Seat held |
| Rugby | Conservative | Mark Pawsey (C) | Seat held |
| Ruislip, Northwood and Pinner | Conservative | The Hon. Nick Hurd (C) | Seat held |
| Runnymede and Weybridge | Conservative | Philip Hammond (C) | Seat held |
| Rushcliffe | Conservative | Kenneth Clarke (C) | Seat held |
| Rutherglen and Hamilton West | Labour Co-operative | Margaret Ferrier (SNP) | Seat gain, defeated incumbent Tom Greatrex |
| Rutland and Melton | Conservative | Sir Alan Duncan (C) | Seat held |
| Saffron Walden | Conservative | Sir Alan Haselhurst (C) | Seat held |
| Salford and Eccles | Labour | Rebecca Long-Bailey (L) | Seat held, incumbent Hazel Blears stood down |
| Salisbury | Conservative | John Glen (C) | Seat held |
| Scarborough and Whitby | Conservative | Robert Goodwill (C) | Seat held |
| Scunthorpe | Labour | Nic Dakin (L) | Seat held |
| Sedgefield | Labour | Phil Wilson (L) | Seat held |
| Sefton Central | Labour | Bill Esterson (L) | Seat held |
| Selby and Ainsty | Conservative | Nigel Adams (C) | Seat held |
| Sevenoaks | Conservative | Michael Fallon (C) | Seat held |
| Sheffield Central | Labour | Paul Blomfield (L) | Seat held |
| Sheffield South East | Labour | Clive Betts (L) | Seat held |
| Sheffield Brightside and Hillsborough | Labour | Harry Harpham (L) | Seat held, incumbent David Blunkett stood down |
| Sheffield Hallam | Liberal Democrats | Nick Clegg (LD) | Seat held |
| Sheffield Heeley | Labour Co-operative | Louise Haigh (L) | Seat held, incumbent Meg Munn stood down |
| Sherwood | Conservative | Mark Spencer (C) | Seat held |
| Shipley | Conservative | Philip Davies (C) | Seat held |
| Shrewsbury and Atcham | Conservative | Daniel Kawczynski (C) | Seat held |
| Sittingbourne and Sheppey | Conservative | Gordon Henderson (C) | Seat held |
| Skipton and Ripon | Conservative | Julian Smith (C) | Seat held |
| Sleaford and North Hykeham | Conservative | Stephen Phillips (C) | Seat held |
| Slough | Labour | Fiona Mactaggart (L) | Seat held |
| Solihull | Liberal Democrats | Julian Knight (C) | Seat gain, defeated incumbent Lorely Burt |
| Somerton and Frome | Liberal Democrats | David Warburton (C) | Seat gain, incumbent David Heath stood down |
| South Antrim | DUP | Danny Kinahan (UUP) | Seat gain, defeated incumbent William McCrea |
| South Basildon and East Thurrock | Conservative | Stephen Metcalfe (C) | Seat held |
| South Cambridgeshire | Conservative | Heidi Allen (C) | Seat held, incumbent Andrew Lansley stood down |
| South Derbyshire | Conservative | Heather Wheeler (C) | Seat held |
| South Dorset | Conservative | Richard Drax (C) | Seat held |
| South Down | SDLP | Margaret Ritchie (SDLP) | Seat held |
| South East Cambridgeshire | Conservative | Lucy Frazer (C) | Seat held, incumbent Sir James Paice stood down |
| South East Cornwall | Conservative | Sheryll Murray (C) | Seat held |
| South Holland and The Deepings | Conservative | John Hayes (C) | Seat held |
| South Leicestershire | Conservative | Alberto Costa (C) | Seat held, incumbent Andrew Robathan stood down |
| South Norfolk | Conservative | Richard Bacon (C) | Seat held |
| South Northamptonshire | Conservative | Andrea Leadsom (C) | Seat held |
| South Ribble | Conservative | Seema Kennedy (C) | Seat held, incumbent Lorraine Fullbrook stood down |
| South Shields | Labour | Emma Lewell-Buck (L) | Seat held |
| South Staffordshire | Conservative | Gavin Williamson (C) | Seat held |
| South Suffolk | Conservative | James Cartlidge (C) | Seat held, incumbent Tim Yeo stood down |
| South Swindon | Conservative | Robert Buckland (C) | Seat held |
| South Thanet | Conservative | Craig Mackinlay (C) | Seat held, incumbent Laura Sandys stood down |
| South West Bedfordshire | Conservative | Andrew Selous (C) | Seat held |
| South West Devon | Conservative | Gary Streeter (C) | Seat held |
| South West Hertfordshire | Conservative | David Gauke (C) | Seat held |
| South West Norfolk | Conservative | Liz Truss (C) | Seat held |
| South West Surrey | Conservative | Jeremy Hunt (C) | Seat held |
| South West Wiltshire | Conservative | Andrew Murrison (C) | Seat held |
| Southampton Itchen | Labour | Royston Smith (C) | Seat gain, incumbent John Denham stood down |
| Southampton Test | Labour | Alan Whitehead (L) | Seat held |
| Southend West | Conservative | Sir David Amess (C) | Seat held |
| Southport | Liberal Democrats | John Pugh (LD) | Seat held |
| Spelthorne | Conservative | Kwasi Kwarteng (C) | Seat held |
| St Albans | Conservative | Anne Main (C) | Seat held |
| St Austell and Newquay | Liberal Democrats | Steve Double (C) | Seat gain, defeated incumbent Steve Gilbert |
| St Helens North | Labour | Conor McGinn (L) | Seat held, incumbent David Watts stood down |
| St Helens South and Whiston | Labour | Marie Rimmer (L) | Seat held, incumbent Shaun Woodward stood down |
| St Ives | Liberal Democrats | Derek Thomas (C) | Seat gain, defeated incumbent Andrew George |
| Stafford | Conservative | Jeremy Lefroy (C) | Seat held |
| Staffordshire Moorlands | Conservative | Karen Bradley (C) | Seat held |
| Stalybridge and Hyde | Labour Co-operative | Jonathan Reynolds (L Co-op) | Seat held |
| Stevenage | Conservative | Stephen McPartland (C) | Seat held |
| Stirling | Labour | Steven Paterson (SNP) | Seat gain, incumbent Dame Anne McGuire stood down |
| Stockport | Labour | Ann Coffey (L) | Seat held |
| Stockton North | Labour | Alex Cunningham (L) | Seat held |
| Stockton South | Conservative | James Wharton (C) | Seat held |
| Stoke-on-Trent Central | Labour | The Hon. Tristram Hunt (L) | Seat held |
| Stoke-on-Trent North | Labour | Ruth Smeeth (L) | Seat held, incumbent Joan Walley stood down |
| Stoke-on-Trent South | Labour | Rob Flello (L) | Seat held |
| Stone | Conservative | Sir Bill Cash (C) | Seat held |
| Stourbridge | Conservative | Margot James (C) | Seat held |
| Strangford | DUP | Jim Shannon (DUP) | Seat held |
| Stratford-on-Avon | Conservative | Nadhim Zahawi (C) | Seat held |
| Streatham | Labour | Chuka Umunna (L) | Seat held |
| Stretford and Urmston | Labour | Kate Green (L) | Seat held |
| Stroud | Conservative | Neil Carmichael (C) | Seat held |
| Suffolk Coastal | Conservative | Therese Coffey (C) | Seat held |
| Sunderland Central | Labour | Julie Elliott (L) | Seat held |
| Surrey Heath | Conservative | Michael Gove (C) | Seat held |
| Sutton and Cheam | Liberal Democrats | Paul Scully (C) | Seat gain, defeated incumbent Paul Burstow |
| Sutton Coldfield | Conservative | Andrew Mitchell (C) | Seat held |
| Swansea East | Labour | Carolyn Harris (L) | Seat held, incumbent Siân James stood down |
| Swansea West | Labour Co-operative | Geraint Davies (L Co-op) | Seat held |
| Tamworth | Conservative | Christopher Pincher (C) | Seat held |
| Tatton | Conservative | George Osborne (C) | Seat held |
| Taunton Deane | Liberal Democrats | Rebecca Pow (C) | Seat gain, incumbent Jeremy Browne stood down |
| Telford | Labour | Lucy Allan (C) | Seat gain, defeated incumbent David Wright |
| Tewkesbury | Conservative | Laurence Robertson (C) | Seat held |
| Thirsk and Malton | Conservative | Kevin Hollinrake (C) | Seat held, incumbent Anne McIntosh stood down |
| Thornbury and Yate | Liberal Democrats | Luke Hall (C) | Seat gain, defeated incumbent Steve Webb |
| Thurrock | Conservative | Jackie Doyle-Price (C) | Seat held |
| Tiverton and Honiton | Conservative | Neil Parish (C) | Seat held |
| Tonbridge and Malling | Conservative | Tom Tugendhat (C) | Seat held, incumbent Sir John Stanley stood down |
| Tooting | Labour | Sadiq Khan (L) | Seat held |
| Torbay | Liberal Democrats | Kevin Foster (C) | Seat gain, defeated incumbent Adrian Sanders |
| Torfaen | Labour | Nick Thomas-Symonds (L) | Seat held, incumbent Paul Murphy stood down. |
| Torridge and West Devon | Conservative | Geoffrey Cox (C) | Seat held |
| Totnes | Conservative | Sarah Wollaston (C) | Seat held |
| Tottenham | Labour | David Lammy (L) | Seat held |
| Truro and Falmouth | Conservative | Sarah Newton (C) | Seat held |
| Tunbridge Wells | Conservative | Greg Clark (C) | Seat held |
| Twickenham | Liberal Democrats | Tania Mathias (C) | Seat gain, defeated incumbent Vince Cable |
| Tynemouth | Labour | Alan Campbell (L) | Seat held |
| Upper Bann | DUP | David Simpson (DUP) | Seat held |
| Uxbridge and South Ruislip | Conservative | Boris Johnson (C) | Seat held, incumbent Sir John Randall stood down |
| Vale of Clwyd | Labour | James Davies (C) | Seat gain, defeated incumbent Chris Ruane |
| Vale of Glamorgan | Conservative | Alun Cairns (C) | Seat held |
| Vauxhall | Labour | Kate Hoey (L) | Seat held |
| Wakefield | Labour | Mary Creagh (L) | Seat held |
| Wallasey | Labour | Angela Eagle (L) | Seat held |
| Walsall North | Labour | David Winnick (L) | Seat held |
| Walsall South | Labour | Valerie Vaz (L) | Seat held |
| Walthamstow | Labour Co-operative | Stella Creasy (L Co-op) | Seat held |
| Wansbeck | Labour | Ian Lavery (L) | Seat held |
| Wantage | Conservative | The Hon. Ed Vaizey (C) | Seat held |
| Warley | Labour | John Spellar (L) | Seat held |
| Warrington North | Labour | Helen Jones (L) | Seat held |
| Warrington South | Conservative | David Mowat (C) | Seat held |
| Warwick and Leamington | Conservative | Chris White (C) | Seat held |
| Washington and Sunderland West | Labour | Sharon Hodgson (L) | Seat held |
| Watford | Conservative | Richard Harrington (C) | Seat held |
| Waveney | Conservative | Peter Aldous (C) | Seat held |
| Wealden | Conservative | Nus Ghani (C) | Seat held, incumbent Charles Hendry stood down |
| Weaver Vale | Conservative | Graham Evans (C) | Seat held |
| Wellingborough | Conservative | Peter Bone (C) | Seat held |
| Wells | Liberal Democrats | James Heappey (C) | Seat gain, defeated incumbent Tessa Munt |
| Welwyn Hatfield | Conservative | Grant Shapps (C) | Seat held |
| Wentworth and Dearne | Labour | John Healey (L) | Seat held |
| West Aberdeenshire and Kincardine | Liberal Democrats | Stuart Donaldson (SNP) | Seat gain, defeated incumbent Sir Robert Smith, Bt |
| West Bromwich East | Labour | Tom Watson (L) | Seat held |
| West Bromwich West | Labour Co-operative | Adrian Bailey (L Co-op) | Seat held |
| West Dorset | Conservative | Oliver Letwin (C) | Seat held |
| West Dunbartonshire | Labour Co-operative | Martin Docherty (SNP) | Seat gain, defeated incumbent Gemma Doyle |
| West Ham | Labour | Lyn Brown (L) | Seat held |
| West Lancashire | Labour | Rosie Cooper (L) | Seat held |
| West Suffolk | Conservative | Matthew Hancock (C) | Seat held |
| West Tyrone | Sinn Féin | Pat Doherty (SF) | Seat held |
| West Worcestershire | Conservative | Harriett Baldwin (C) | Seat held |
| Westminster North | Labour | Karen Buck (L) | Seat held |
| Westmorland and Lonsdale | Liberal Democrats | Tim Farron (LD) | Seat held |
| Weston-super-Mare | Conservative | John Penrose (C) | Seat held |
| Wigan | Labour | Lisa Nandy (L) | Seat held |
| Wimbledon | Conservative | Stephen Hammond (C) | Seat held |
| Winchester | Conservative | Steve Brine (C) | Seat held |
| Windsor | Conservative | Adam Afriyie (C) | Seat held |
| Wirral South | Labour | Alison McGovern (L) | Seat held |
| Wirral West | Conservative | Margaret Greenwood (L) | Seat gain, defeated incumbent Esther McVey |
| Witham | Conservative | Priti Patel (C) | Seat held |
| Witney | Conservative | David Cameron (C) | Seat held |
| Woking | Conservative | Jonathan Lord (C) | Seat held |
| Wokingham | Conservative | John Redwood (C) | Seat held |
| Wolverhampton North East | Labour | Emma Reynolds (L) | Seat held |
| Wolverhampton South East | Labour | Pat McFadden (L) | Seat held |
| Wolverhampton South West | Conservative | Rob Marris (L) | Seat gain, defeated incumbent Paul Uppal |
| Worcester | Conservative | The Hon. Robin Walker (C) | Seat held |
| Workington | Labour | Sue Hayman (L) | Seat held, incumbent Sir Tony Cunningham stood down |
| Worsley and Eccles South | Labour | Barbara Keeley (L) | Seat held |
| Worthing West | Conservative | Sir Peter Bottomley (C) | Seat held |
| The Wrekin | Conservative | Mark Pritchard (C) | Seat held |
| Wrexham | Labour | Ian Lucas (L) | Seat held |
| Wycombe | Conservative | Steve Baker (C) | Seat held |
| Wyre and Preston North | Conservative | Ben Wallace (C) | Seat held |
| Wyre Forest | Conservative | Mark Garnier (C) | Seat held |
| Wythenshawe and Sale East | Labour | Mike Kane (L) | Seat held |
| Yeovil | Liberal Democrats | Marcus Fysh (C) | Seat gain, defeated incumbent David Laws |
| Ynys Môn (Anglesey) | Labour | Albert Owen (L) | Seat held |
| York Central | Labour | Rachael Maskell (L Co-op) | Seat held, incumbent Sir Hugh Bayley stood down |
| York Outer | Conservative | Julian Sturdy (C) | Seat held |

### Notes

* 1 2 3 4 The incumbents for these seats were originally members of political parties before either being suspended or resigning from their respective parties and subsequently sitting as independents for the remainder of the Parliament.

## Changes and by-elections

After the general election, changes can occur in the composition of the House of Commons. This happens as a result of the election of Deputy Speakers, by-elections, defections, suspensions or removal of whip.
After the swearing in of MPs and the elections of the Speaker and the Deputy Speakers, the initial government majority was calculated to be sixteen.
Technically, MPs cannot resign. However, they can effectively do so by requesting to be appointed as the Crown Steward and Bailiff of the Manor of Northstead or the Crown Steward and Bailiff of the three Chiltern Hundreds of Stoke, Desborough and Burnham, which vacates their seat.
The net outcome of all changes over the course of the Parliament had resulted in two fewer Labour MPs, two fewer SNP MPs, one more Liberal Democrat MP and three more independent MPs.

### Deputy Speakers

In accordance with a decision taken by the House of Commons on the final day of its sitting in the previous Parliament, the Speaker appointed two members to serve as Temporary Deputy Speakers until the Deputy Speakers had been elected. Directly after the 2015 State Opening of Parliament, the Speaker nominated Sir Roger Gale (Conservative, North Thanet) and George Howarth (Labour, Knowsley) for these positions.
The election of Deputy Speakers took place on 3 June 2015.
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.
| Name | Party | Constituency | Office |
| Lindsay Hoyle | Labour | Chorley | Chairman of Ways and Means |
| Eleanor Laing | Conservative | Epping Forest | First Deputy Chairman of Ways and Means |
| Natascha Engel | Labour | North East Derbyshire | Second Deputy Chairman of Ways and Means |

### By-elections

By-elections are held for seats that become vacant.
| # | Constituency | Incumbent | Incumbent | Incumbent | Incumbent | Incumbent | Date of by-election | Winner | Winner | Winner | By-election |
| # | Constituency | Name | Party | Party | Date seat vacated | Cause of vacation | Date of by-election | Name | Party | Party | | By-election |
| 1 | Oldham West and Royton | Michael Meacher | | Labour | 21 October 2015 | Death | 3 December 2015 | Jim McMahon | | Labour Co-op | Details |
| 2 | Sheffield Brightside and Hillsborough | Harry Harpham | | Labour | 4 February 2016 | Death | 5 May 2016 | Gill Furniss | | Labour | Details |
| 3 | Ogmore | Huw Irranca-Davies | | Labour | 23 March 2016 | Resignation | 5 May 2016 | Chris Elmore | | Labour | Details |
| 4 | Tooting | Sadiq Khan | | Labour | 9 May 2016 | Resignation | 16 June 2016 | Rosena Allin-Khan | | Labour | Details |
| 5 | Batley and Spen | Jo Cox | | Labour | 16 June 2016 | Assassination | 20 October 2016 | Tracy Brabin | | Labour Co-op | Details |
| 6 | Witney | David Cameron | | Conservative | 12 September 2016 | Resignation | 20 October 2016 | Robert Courts | | Conservative | Details |
| 7 | Richmond Park | Zac Goldsmith | | Conservative | 25 October 2016 | Resignation | 1 December 2016 | Sarah Olney | | Liberal Democrats | Details |
| 8 | Sleaford and North Hykeham | Stephen Phillips | | Conservative | 4 November 2016 | Resignation | 8 December 2016 | Caroline Johnson | | Conservative | Details |
| 9 | Copeland | Jamie Reed | | Labour | 23 January 2017 | Resignation | 23 February 2017 | Trudy Harrison | | Conservative | Details |
| 10 | Stoke-on-Trent Central | Tristram Hunt | | Labour | 23 January 2017 | Resignation | 23 February 2017 | Gareth Snell | | Labour Co-op | Details |
A by-election was planned to be held in the seat of Manchester Gorton following the death of Sir Gerald Kaufman on 26 February 2017. Following the announcement on 18 April 2017 of a snap general election by Theresa May, it was confirmed that the Cabinet Office would intervene to cancel the by-election, leaving the seat vacant until the general election on 8 June 2017.

### Defections, suspensions and removal of whip

In some situations, the label under which MPs sit in the House of Commons can change. When this happens, MPs often become independents.
| Name | Date | From | From | To | To | Constituency | Reason |
| Michelle Thomson | 29 September 2015 | | SNP | | Independent | Edinburgh West | Resigned the SNP whip after her business became the subject of a police investigation into alleged irregularities regarding property deals. |
| Natalie McGarry | 24 November 2015 | | SNP | | Independent | Glasgow East | Resigned the SNP whip after police investigation over financial discrepancies within Women for Independence, an organisation of which she is a founder. |
| Simon Danczuk | 31 December 2015 | | Labour | | Independent | Rochdale | Suspended from Labour after allegations of "inappropriate behaviour" with a 17-year-old girl. |
| Naz Shah | 27 April 2016 | | Labour | | Independent | Bradford West | Suspended from Labour, pending investigation into social media comments which she made, including proposing the relocation of Israel to North America. |
| Naz Shah | 5 July 2016 | | Independent | | Labour | Bradford West | Reinstated. |
| Christina Rees | June 2016 | | Labour | | Labour Co-op | Neath | Invited by the Co-operative Party NEC to join the Labour and Co-operative Parliamentary Group. |
| Justin Tomlinson | 11 October 2016 | | Conservative | Suspended | Suspended | North Swindon | Suspended from the House of Commons after leaking a confidential report to a Wonga.com employee. |
| Justin Tomlinson | 12 October 2016 | Suspended | Suspended | | Conservative | North Swindon | Reinstated. |
| Douglas Carswell | 25 March 2017 | | UKIP | | Independent | Clacton | Resigned from UKIP to focus on local issues as the UK was "certain to leave the EU". |

## Progression of government majority and party totals

The government voting total is the total number of Conservative MPs, minus the Conservative Deputy Speaker. The opposition voting total is the total number of other MPs, minus the Speaker, the two Labour Deputy Speakers, and all Sinn Féin MPs. The majority is the difference between the former and the latter.
| Date | Event | Cons. | Working majority | Labour | SNP | Lib Dem | DUP | Sinn F | PC | SDLP | UUP | Green | UKIP | Ind. | Spkr | Vacant |
| 27 May 2015 | Opening of Parliament | 330 | 16 | 232 | 56 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | 0 |
| 29 September 2015 | Thomson suspended from SNP | 330 | 16 | 232 | 55 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 2 | 1 | 0 |
| 21 October 2015 | Meacher (Lab), dies | 330 | 17 | 231 | 55 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 2 | 1 | 1 |
| 24 November 2015 | McGarry suspended from SNP | 330 | 17 | 231 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 3 | 1 | 1 |
| 3 December 2015 | McMahon (Lab), elected in Oldham West and Royton | 330 | 16 | 232 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 3 | 1 | 0 |
| 31 December 2015 | Danczuk (Lab), has whip suspended | 330 | 16 | 231 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 0 |
| 2016 |||||||||||||||||
| 4 February 2016 | Harpham (Lab), dies | 330 | 17 | 230 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 1 |
| 23 March 2016 | Irranca-Davies (Lab),resigns . | 330 | 18 | 229 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 2 |
| 27 April 2016 | Shah (Lab), has whip suspended | 330 | 18 | 228 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 5 | 1 | 2 |
| 5 May 2016 | Lab wins Brightside & Ogmore by-elections | 330 | 16 | 230 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 5 | 1 | 0 |
| 9 May 2016 | Khan (Lab), resigns | 330 | 17 | 229 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 5 | 1 | 1 |
| 16 June 2016 | Lab wins Tooting by-election. | 330 | 17 | 229 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 5 | 1 | 1 |
| 16 June 2016 | Cox (Lab) killed. | 330 | 17 | | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | | 1 | 1 |
| 5 July 2016 | Shah re-admitted to Labour | 330 | 17 | 230 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 1 |
| 12 September 2016 | Cameron (Con), resigns | 329 | 16 | 230 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 2 |
| 20 October 2016 | Lab wins Batley, Con win Witney by-elections | 330 | 16 | 231 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 0 |
| 25 October 2016 | Goldsmith (Con) resigns | 329 | 15 | 231 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 1 |
| 4 November 2016 | Phillips (Con), resigns | 328 | 14 | 231 | 54 | 8 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 2 |
| 1 December 2016 | Olney (Lib Dem) wins Richmond Park by-election | 328 | 13 | 231 | 54 | 9 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 1 |
| 8 December 2016 | Johnson (Con) wins Sleaford by-election | 329 | 14 | 231 | 54 | 9 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 0 |
| 2017 |||||||||||||||||
| 23 January 2017 | Reed (Lab, Copeland) and Hunt (Lab, Stoke-on-Trent Central) resign. | 329 | 16 | 229 | 54 | 9 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 2 |
| 23 February 2017 | Lab wins Stoke, Con win Copeland by-elections | 330 | 16 | 230 | 54 | 9 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 0 |
| 26 February 2017 | Kaufman (Lab, Manchester Gorton) dies | 330 | 17 | 229 | 54 | 9 | 8 | 4 | 3 | 3 | 2 | 1 | 1 | 4 | 1 | 1 |
| 25 March 2017 | Carswell resigns from UKIP | 330 | 17 | 229 | 54 | 9 | 8 | 4 | 3 | 3 | 2 | 1 | 0 | 5 | 1 | 1 |