| Constituency | Party of
incumbent before election | Member elected | Profession before election | Birth year |
| Aberconwy | | Labour | | Guto Bebb (C) | Business Development Director of Innovas Wales[2] | 1968 |
| Airdrie and Shotts | | Labour | | Pamela Nash (L) | Parliamentary Assistant to John Reid MP | 1984 |
| Amber Valley | | Labour | | Nigel Mills (C) | Chartered Accountant for PricewaterhouseCoopers | 1974 |
| Ashfield | | Labour | | Gloria De Piero (L) | Newsreader for GMTV | 1972 |
| Banff and Buchan | | SNP | | Eilidh Whiteford (SNP) | Scottish Campaigns Manager for Oxfam | 1969 |
| Barrow and Furness | | Labour | | John Woodcock (L) | Special Advisor to Gordon Brown MP | 1978 |
| Battersea | | Labour | | Jane Ellison (C) | Director of John Lewis Magazine 'Edition' | 1964 |
| Beckenham | | Conservative | | Bob Stewart DSO
(C) | Chief of Policy at Supreme Headquarters Allied Powers Europe, Commander of United Nations forces in Bosnia during Operation Grapple & retired Colonel in the Cheshire Regiment | 1949 |
| Bedford | | Labour | | Richard Fuller (C) | Management Consultant for L.E.K. Consulting | 1962 |
| Belfast East | | DUP | | Naomi Long (APNI) | Member of the Northern Ireland Assembly for Belfast East | 1971 |
| Bethnal Green and Bow | | Respect | | Rushanara Ali (L) | Associate Director of the Young Foundation | 1975 |
| Birmingham, Erdington | | Labour | | Jack Dromey (L) | Deputy General Secretary of Unite | 1948 |
| Birmingham, Ladywood | | Labour | | Shabana Mahmood (L) | Barrister | 1980 |
| Blackpool North and Cleveleys | | Labour | | Paul Maynard (C) | Special Advisor to Dr. Liam Fox MP | 1975 |
| Blaenau Gwent | | BGPV | | Nick Smith (L) | Director of Policy and Partnerships at the Royal College of Speech and Language Therapists | 1960 |
| Bolton South East | | Labour | | Yasmin Qureshi (L) | Barrister | 1963 |
| Bolton West | | Labour | | Julie Hilling (L) | Trade Union Regional Organiser for the Transport Salaried Staffs' Association | 1955 |
| Bournemouth West | | Conservative | | Conor Burns (C) | Associate Director for PLMR[3] | 1972 |
| Bracknell | | Conservative | | Dr. Phillip Lee (C) | Doctor | 1970 |
| Brentford and Isleworth | | Labour | | Mary Macleod (C) | Group Communications Head of Transition at Royal Bank of Scotland & Policy Advisor to The Queen and the Royal Household at Buckingham Palace | 1969 |
| Brigg and Goole | | Labour | | Andrew Percy (C) | Teacher & Councillor for Hull City Council | 1977 |
| Brighton, Kemptown | | Labour | | Simon Kirby (C) | Owner of C-Side[4] & Councillor for East Sussex County Council | 1964 |
| Brighton, Pavilion | | Labour | | Caroline Lucas (G) | Leader of the Green Party of England and Wales | 1960 |
| Bristol North West | | Labour | | Charlotte Leslie (C) | Editor of 'Crossbow' | 1978 |
| Bromsgrove | | Conservative | | Sajid Javid (C) | Head of Deutsche Bank's Asia Global Credit Trading | 1969 |
| Broxtowe | | Labour | | Anna Soubry (C) | Barrister & Newsreader for This Morning | 1956 |
| Burnley | | Labour | | Gordon Birtwistle (LD) | Owner of P&J Engineering Supplies | 1943 |
| Burton | | Labour | | Andrew Griffiths (C) | Chief of Staff to Eric Pickles MP | 1970 |
| Bury North | | Labour | | David Nuttall (C) | Notary Public | 1962 |
| Calder Valley | | Labour | | Craig Whittaker (C) | Retail General Manager for PC World & Councillor for Calderdale Borough Council | 1962 |
| Camborne and Redruth | | Liberal Democrats | | George Eustice (C) | Associate Director of Portland Communications[5] | 1971 |
| Cambridge | | Liberal Democrats | | Dr. Julian Huppert (LD) | Biologist & Councillor for Cambridgeshire County Council | 1978 |
| Cannock Chase | | Labour | | Aidan Burley (C) | Management Consultant for Mouchel & Councillor for Hammersmith and Fulham London Borough Council | 1979 |
| Cardiff North | | Labour | | Jonathan Evans (C) | Former MEP for Wales & former MP for Brecon and Radnorshire | 1950 |
| Carlisle | | Labour | | John Stevenson (C) | Solicitor & Councillor for Carlisle City Council | 1963 |
| Carmarthen East and Dinefwr | | Plaid Cymru | | Jonathan Edwards (PC) | Chief of Staff to Adam Price MP | 1968 |
| Carmarthen West and South Pembrokeshire | | Labour | | Simon Hart (C) | Chief Executive of the Countryside Alliance & retired Captain in the Royal Gloucestershire Hussars | 1963 |
| Castle Point | | Conservative | | Rebecca Harris (C) | Marketing Director of Phillimore & Co. Publishers | 1967 |
| Central Devon | | Conservative | | Mel Stride (C) | Businessman | 1961 |
| Central Suffolk and North Ipswich | | Conservative | | Dr. Daniel Poulter (C) | Doctor | 1978 |
| Chatham and Aylesford | | Labour | | Tracey Crouch (C) | Head of Public Affairs for Aviva | 1975 |
| City of Chester | | Labour | | Stephen Mosley (C) | IT Consultant & Councillor for Chester City Council | 1972 |
| Chesterfield | | Liberal Democrats | | Toby Perkins (L) | Owner of ClubRugby[6] & Councillor for Chesterfield Borough Council | 1970 |
| Chippenham | | Liberal Democrats | | Duncan Hames (LD) | Chartered Accountant for Deloitte | 1977 |
| Cleethorpes | | Labour | | Martin Vickers (C) | Constituency Agent to Edward Leigh MP & Councillor for North East Lincolnshire Council | 1950 |
| Clwyd South | | Labour | | Susan Elan Jones (L) | Charity Fundraiser | 1968 |
| Colne Valley | | Labour | | Jason McCartney (C) | Newsreader for ITV's Calendar News & retired Flight Lieutenant in the Royal Air Force | 1968 |
| Congleton | | Conservative | | Fiona Bruce (C) | Solicitor & Councillor for Warrington Borough Council | 1957 |
| Corby | | Labour | | Louise Bagshawe (C) | Novellist | 1971 |
| Crawley | | Labour | | Henry Smith (C) | Leader of West Sussex County Council | 1969 |
| Croydon Central | | Labour | | Gavin Barwell (C) | Management Consultant & Councillor for Croydon Borough Council | 1972 |
| Cumbernauld, Kilsyth and Kirkintilloch East | | Labour | | Gregg McClymont (L) | Tutor at St Hugh's College, Oxford | 1976 |
| Darlington | | Labour | | Jenny Chapman (L) | Parliamentary Assistant to Alan Milburn MP & Councillor for Darlington Borough Council | 1973 |
| Dartford | | Labour | | Gareth Johnson (C) | Solicitor | 1969 |
| Derby North | | Labour | | Thomas Docherty (L) | Leader of Derby City Council | 1956 |
| Devizes | | Conservative | | Claire Perry (C) | Political Advisor to George Osborne MP | 1964 |
| Dewsbury | | Labour | | Simon Reevell (C) | Barrister | 1966 |
| Dover | | Labour | | Charlie Elphicke (C) | Solicitor | 1971 |
| Dudley South | | Labour | | Chris Kelly (C) | Marketing Director of Keltruck Ltd | 1978 |
| Dunfermline and West Fife | | Labour | | Thomas Docherty (L) | Account Director of Communications Company | 1975 |
| Ealing Central and Acton | | Labour | | Angie Bray (C) | Former London Assembly Member for West Central | 1953 |
| Easington | | Labour | | Grahame Morris (L) | Researcher for John Cummings & Councillor for Easington District Council | 1961 |
| East Hampshire | | Conservative | | Damian Hinds (C) | Barrister | 1969 |
| East Kilbride, Strathaven and Lesmahagow | | Labour | | Michael McCann (L) | Trade Union Official to Public and Commercial Services Union & Councillor for South Lanarkshire Council | 1964 |
| East Lothian | | Labour | | Fiona O'Donnell (L) | Development Officer for the Labour Party | 1960 |
| East Surrey | | Conservative | | Sam Gyimah (C) | Investment Banker for Goldman Sachs & Chairman of the Bow Group | 1976 |
| Eastbourne | | Conservative | | Stephen Lloyd (LD) | Business Development Consultant for Federation of Small Businesses | 1957 |
| Edinburgh South | | Labour | | Ian Murray (L) | Owner of 100 mph Events Ltd & Councillor for Edinburgh City Council | 1976 |
| Elmet and Rothwell | | Labour | | Alec Shelbrooke (C) | Project Manager for the University of Leeds & Councillor for Leeds City Council | 1976 |
| Enfield North | | Labour | | Nick de Bois (C) | Managing Director for Rapier Design Ltd | 1959 |
| Erewash | | Labour | | Jessica Lee (C) | Barrister | 1976 |
| Erith and Thamesmead | | Labour | | Teresa Pearce (L) | Senior Manager for PricewaterhouseCoopers | 1955 |
| Esher and Walton | | Conservative | | Dominic Raab (C) | Barrister for the British Embassy in The Hague & Chief of Staff for David Davis MP & Dominic Grieve MP | 1974 |
| Filton and Bradley Stoke | | Conservative | | Jack Lopresti (C) | Management Consultant & Trooper in the Royal Gloucestershire Hussars | 1969 |
| Finchley and Golders Green | | Conservative | | Mike Freer (C) | Relationship Director for Barclays Bank & Leader of Barnet Borough Council | 1960 |
| Folkestone and Hythe | | Conservative | | Damian Collins (C) | Senior Counsel to Lexington Communications | 1974 |
| Gillingham and Rainham | | Labour | | Rehman Chishti (C) | Political Adviser to Benazir Bhutto, former Prime Minister of Pakistan & Councillor for Medway Council | 1978 |
| Glasgow Central | | Labour | | Anas Sarwar (L) | Dentist | 1983 |
| Glasgow East | | Labour | | Margaret Curran (L) | Member of the Scottish Parliament for Glasgow Baillieston | 1958 |
| Gloucester | | Labour | | Richard Graham (C) | British Trade Commissioner to China & Hong Kong, Consul for Macau & Director of Baring Asset Management | 1958 |
| Gosport | | Conservative | | Caroline Dinenage (C) | Director of Dinenages Ltd | 1971 |
| Grantham and Stamford | | Conservative | | Nicholas Boles (C) | Director of Policy Exchange | 1965 |
| Great Yarmouth | | Labour | | Brandon Lewis (C) | Barrister & Leader of Brentwood Borough Council | 1971 |
| Halesowen and Rowley Regis | | Labour | | James Morris (C) | Owner of a Computer Software company | 1967 |
| Harlow | | Labour | | Robert Halfon (C) | Political Director for Conservative Friends of Israel | 1969 |
| Harrogate and Knaresborough | | Liberal Democrats | | Andrew Jones (C) | Marketing Director for Bettys and Taylors of Harrogate | 1963 |
| Harrow East | | Labour | | Bob Blackman (C) | Former London Assembly Member for Brent and Harrow & Regulatory Compliance Manager for BT Group | 1956 |
| Hastings and Rye | | Labour | | Amber Rudd (C) | Owner of Lawnstone Ltd[7] | 1963 |
| Hendon | | Labour | | Dr. Matthew Offord (C) | Political Analyst for the BBC & Councillor for Barnet Borough Council | 1969 |
| Hereford and South Herefordshire | | Liberal Democrats | | Jesse Norman (C) | Lecturer of Philosophy at University College London and Birkbeck, University of London & Author | 1962 |
| Hexham | | Conservative | | Guy Opperman (C) | Barrister | 1965 |
| High Peak | | Labour | | Andrew Bingham (C) | Businessman & Councillor for High Peak Borough Council | 1962 |
| Houghton and Sunderland South | | Labour | | Bridget Phillipson (L) | Manager for the Wearside Women in Need charity | 1983 |
| Hove | | Labour | | Mike Weatherley (C) | Chartered Accountant | 1957 |
| Ipswich | | Labour | | The Hon. Ben Gummer (C) | Managing Director of Sancroft International | 1978 |
| Islwyn | | Labour | | Chris Evans (L) | Parliamentary Researcher to Don Touhig MP | 1976 |
| Keighley | | Labour | | Kris Hopkins (C) | Leader of Bradford Council & retired Private in the Duke of Wellington's Regiment.[8][9] | 1963 |
| Kilmarnock and Loudoun | | Labour | | Cathy Jamieson (L) | Member of the Scottish Parliament for Carrick, Cumnock and Doon Valley | 1956 |
| Kingston upon Hull East | | Labour | | Karl Turner (L) | Barrister | 1971 |
| Kingswood | | Labour | | Chris Skidmore (C) | Author & Historian | 1981 |
| Lancaster and Fleetwood | | Labour | | Eric Ollerenshaw OBE
(C) | Former London Assembly Member for London Wide | 1950 |
| Leeds West | | Labour | | Rachel Reeves (L) | Economist for HBOS | 1979 |
| Leicester West | | Labour | | Liz Kendall (L) | Director of the Ambulance Services Network | 1971 |
| Lewisham East | | Labour | | Heidi Alexander (L) | Councillor for Lewisham London Borough Council | 1975 |
| Leyton and Wanstead | | Labour | | John Cryer (L) | Former MP for Hornchurch | 1964 |
| Lincoln | | Labour | | Karl McCartney (C) | Businessman & Magistrate | 1968 |
| Liverpool, Walton | | Labour | | Steve Rotheram (L) | Councillor for Liverpool City Council | 1961 |
| Liverpool, Wavertree | | Labour | | Luciana Berger (L) | Charity Worker | 1981 |
| Liverpool, West Derby | | Labour | | Stephen Twigg (L) | Former MP for Enfield Southgate | 1966 |
| Livingston | | Labour | | Graeme Morrice (L) | Leader of West Lothian Council | 1959 |
| Loughborough | | Labour | | Nicky Morgan (C) | Solicitor | 1972 |
| Luton South | | Labour | | Gavin Shuker (L) | Charity Worker | 1981 |
| Macclesfield | | Conservative | | David Rutley (C) | Businessman | 1961 |
| Maidstone and The Weald | | Conservative | | Helen Grant (C) | Solicitor | 1961 |
| Makerfield | | Labour | | Yvonne Fovargue (L) | Chief Executive of St Helens Citizens Advice Bureau | 1956 |
| Meon Valley | | Conservative | | George Hollingbery (C) | Businessman & Councillor for Winchester City Council | 1963 |
| Mid Derbyshire | | Conservative | | Pauline Latham OBE
(C) | Councillor for Derbyshire County Council | 1948 |
| Mid Norfolk | | Conservative | | George Freeman (C) | Biomedical Venture Capitalist | 1967 |
| Middlesbrough South and East Cleveland | | Labour | | Tom Blenkinsop (L) | Trade Union Regional Official for the Community Trade Union | 1980 |
| Milton Keynes South | | Labour | | Iain Stewart (C) | Recruitment Executive | 1972 |
| Montgomeryshire | | Liberal Democrats | | Glyn Davies (C) | Former Welsh Assembly Member for Mid and West Wales | 1944 |
| Morecambe and Lunesdale | | Labour | | David Morris (C) | Hairdresser & Musician | 1966 |
| Newcastle upon Tyne Central | | Labour | | Dr. Chi Onwurah (L) | Head of Telecoms Technology at Ofcom | 1965 |
| Newcastle upon Tyne North | | Labour | | Catherine McKinnell (L) | Solicitor | 1976 |
| Newton Abbot | | Liberal Democrats | | Anne Marie Morris (C) | Businesswoman | 1957 |
| North Antrim | | DUP | | The Hon. Ian Paisley, Jr. (DUP) | Member of the Northern Ireland Assembly for North Antrim | 1966 |
| North East Cambridgeshire | | Conservative | | Stephen Barclay (C) | Solicitor | 1972 |
| North East Somerset | | Conservative | | The Hon. Jacob Rees-Mogg (C) | Businessman | 1969 |
| North Swindon | | Labour | | Justin Tomlinson (C) | Businessman & Councillor for Swindon Borough Council | 1976 |
| North Tyneside | | Labour | | Mary Glindon (L) | Administrative Officer for the Child Support Agency | 1957 |
| North Warwickshire | | Labour | | Dan Byles (C) | Ocean Rower, Polar Adventurer, Guinness World Records holder & retired Major in the Royal Army Medical Corps | 1974 |
| North West Durham | | Labour | | Pat Glass (L) | Assistant Director of Education for Sunderland and Greenwich & Councillor for Lanchester Parish Council | 1957 |
| North West Leicestershire | | Labour | | Andrew Bridgen (C) | Businessman & retired Lieutenant in the Royal Marines | 1964 |
| Northampton North | | Labour | | Michael Ellis (C) | Barrister | 1967 |
| Norwich South | | Labour | | Simon Wright (LD) | Teacher | 1979 |
| Nottingham East | | Labour | | Chris Leslie (L) | Former MP for Shipley | 1972 |
| Nottingham South | | Labour | | Lilian Greenwood (L) | Trade Union Regional Organiser for UNISON | 1966 |
| Nuneaton | | Labour | | Marcus Jones (C) | Leader of Nuneaton and Bedworth Borough Council | 1974 |
| Orpington | | Conservative | | Jo Johnson (C) | Journalist | 1971 |
| Oxford West and Abingdon | | Liberal Democrats | | Nicola Blackwood (C) | Musician | 1979 |
| Pendle | | Labour | | Andrew Stephenson (C) | Insurance Broker | 1981 |
| Penrith and The Border | | Conservative | | Rory Stewart OBE
(C) | Coalition Provisional Authority Deputy Governorate Co-Ordinator in Maysan, Deputy Governorate Co-ordinator in Dhi Qar, Professor of Human Rights at Harvard University, Director of the John F. Kennedy School of Government Carr Center for Human Rights Policy & retired Second Lieutenant in the Black Watch | 1973 |
| Plymouth, Sutton and Devonport | | Labour | | Oliver Colvile (C) | Businessman | 1959 |
| Pontypridd | | Labour | | Owen Smith (L) | Director of UK and Ireland Board of Amgen | 1970 |
| Portsmouth North | | Labour | | Penny Mordaunt (C) | Director of Diabetes UK, Head of Foreign Press for George W. Bush's Presidential Campaign & Lieutenant in the Royal Naval Reserve | 1973 |
| Pudsey | | Labour | | Stuart Andrew (C) | Team Leader for Martin House Hospice & Councillor for Leeds City Council | 1971 |
| Reading West | | Labour | | Alok Sharma (C) | Chartered Accountant | 1967 |
| Redcar | | Labour | | Ian Swales (LD) | Chartered Accountant | 1953 |
| Redditch | | Labour | | Karen Lumley (C) | Company Secretary of RKL Geological Services Ltd | 1964 |
| Richmond Park | | Liberal Democrats | | Zac Goldsmith (C) | Editor of 'The Ecologist' | 1975 |
| Rochdale | | Labour | | Simon Danczuk (L) | Social Researcher | 1966 |
| Rochester and Strood | | Conservative | | Mark Reckless (C) | Solicitor | 1970 |
| Romsey and Southampton North | | Liberal Democrats | | Caroline Nokes (C) | Chief Executive of the National Pony Society & Councillor for Test Valley Borough Council | 1972 |
| Rossendale and Darwen | | Labour | | Jake Berry (C) | Solicitor | 1978 |
| Rugby | | Labour | | Mark Pawsey (C) | Businessman | 1957 |
| Rutherglen and Hamilton West | | Labour | | Tom Greatrex (L) | Policy Advisor to Jim Murphy MP | 1974 |
| Salisbury | | Conservative | | John Glen (C) | Businessman | 1974 |
| Scunthorpe | | Labour | | Nic Dakin (L) | Teacher | 1955 |
| Selby and Ainsty | | Conservative | | Nigel Adams (C) | Businessman | 1966 |
| Sheffield Central | | Labour | | Paul Blomfield (L) | General Manager of the University of Sheffield Union of Students | 1953 |
| Sherwood | | Labour | | Mark Spencer (C) | Dairy Farmer | 1970 |
| Sittingbourne and Sheppey | | Conservative | | Gordon Henderson (C) | Operations Manager | 1948 |
| Skipton and Ripon | | Conservative | | Julian Smith (C) | Businessman | 1971 |
| Sleaford and North Hykeham | | Conservative | | Stephen Phillips (C) | Queen's Counsel | 1970 |
| South Basildon and East Thurrock | | Labour | | Stephen Metcalfe (C) | Businessman & Councillor for Epping Forest District Council | 1966 |
| South Derbyshire | | Labour | | Heather Wheeler (C) | Leader of South Derbyshire’s District Council | 1959 |
| South Dorset | | Labour | | Richard Drax (C) | BBC Journalist & retired Captain in the Coldstream Guards | 1958 |
| South Down | | Social Democratic & Labour Party | | Margaret Ritchie (SDLP) | Member of the Northern Ireland Assembly for South Down | 1958 |
| South East Cornwall | | Liberal Democrats | | Sheryll Murray (C) | Insurance Agent & Councillor for Cornwall County Council | 1956 |
| South Northamptonshire | | Conservative | | Andrea Leadsom (C) | Senior Investment Officer at Invesco Perpetual | 1963 |
| South Ribble | | Labour | | Lorraine Fullbrook (C) | Businesswoman | 1959 |
| South Staffordshire | | Conservative | | Gavin Williamson (C) | Managing Director of Aynsley China | 1976 |
| South Swindon | | Labour | | Robert Buckland (C) | Barrister | 1968 |
| South Thanet | | Labour | | The Hon. Laura Sandys (C) | Head of Communications for the Shopping Hours Reform Council | 1964 |
| South West Norfolk | | Conservative | | Elizabeth Truss (C) | Deputy Director of Reform | 1975 |
| Spelthorne | | Conservative | | Dr. Kwasi Kwarteng (C) | Financial Analyst | 1975 |
| St Austell and Newquay | | Liberal Democrats | | Steve Gilbert (LD) | Public Affairs Consultant | 1976 |
| Stafford | | Labour | | Jeremy Lefroy (C) | Owner of Equity for Africa & Councillor for Newcastle-under-Lyme Borough Council | 1959 |
| Staffordshire Moorlands | | Conservative | | Karen Bradley (C) | Economic Consultant for KPMG | 1970 |
| Stalybridge and Hyde | | Labour | | Jonathan Reynolds (L) | Solicitor | 1980 |
| Stevenage | | Labour | | Stephen McPartland (C) | Director of Membership for British American Business (United States Chamber of Commerce) | 1976 |
| Stockton North | | Labour | | Alex Cunningham (L) | Managing Director of Tees Valley Communicators | 1955 |
| Stockton South | | Labour | | James Wharton (C) | Solicitor | 1984 |
| Stoke-on-Trent Central | | Labour | | The Hon. Dr. Tristram Hunt (L) | Historian & Journalist | 1974 |
| Stourbridge | | Labour | | Margot James (C) | Businesswoman | 1957 |
| Stratford-on-Avon | | Conservative | | Nadhim Zahawi (C) | Chief Executive & Co-founder of YouGov | 1967 |
| Streatham | | Labour | | Chuka Umunna (L) | Solicitor | 1978 |
| Stretford and Urmston | | Labour | | Kate Green OBE
(L) | Chief Executive of the Child Poverty Action Group | 1960 |
| Stroud | | Labour | | Neil Carmichael (C) | Businessman | 1961 |
| Suffolk Coastal | | Conservative | | Dr. Therese Coffey (C) | Property Finance Manager for the BBC | 1971 |
| Sunderland Central | | Labour | | Julie Elliott (L) | Trade Unionist Regional Organiser for GMB | 1963 |
| Swansea West | | Labour | | Geraint Davies (L) | Former MP for Croydon Central | 1960 |
| Tamworth | | Labour | | Christopher Pincher (C) | IT Consultant | 1969 |
| Thurrock | | Labour | | Jackie Doyle-Price (C) | Parliamentary Officer at The City of London & Private Secretary to the Lord Mayor of the City of London | 1969 |
| Tiverton and Honiton | | Conservative | | Neil Parish (C) | Former MEP for South West England | 1956 |
| Totnes | | Conservative | | Sarah Wollaston (C) | Doctor | 1962 |
| Truro and Falmouth | | Liberal Democrats | | Sarah Newton (C) | Director of The International Longevity Centre | 1961 |
| Vale of Glamorgan | | Labour | | Alun Cairns (C) | Member of the Welsh Assembly for South Wales West | 1970 |
| Walsall South | | Labour | | Valerie Vaz (L) | Solicitor | 1954 |
| Walthamstow | | Labour | | Dr. Stella Creasy (L) | Head of Public Affairs for the Scout Association & Councillor for Waltham Forest | 1977 |
| Wansbeck | | Labour | | Ian Lavery (L) | President of the National Union of Mineworkers | 1963 |
| Warrington South | | Labour | | David Mowat (C) | Chartered Accountant | 1957 |
| Warwick and Leamington | | Labour | | Chris White (C) | Businessman & Councillor for Warwick District Council | 1967 |
| Watford | | Labour | | Richard Harrington (C) | Businessman | 1957 |
| Waveney | | Labour | | Peter Aldous (C) | Chartered Surveyor | 1961 |
| Weaver Vale | | Labour | | Graham Evans (C) | Company Director | 1963 |
| Wells | | Conservative | | Tessa Munt (LD) | Personal Assistant | 1959 |
| West Dunbartonshire | | Labour | | Gemma Doyle (L) | Party Researcher for Cathy Craigie MSP | 1981 |
| West Suffolk | | Conservative | | Matthew Hancock (C) | Chief of Staff to George Osborne MP | 1978 |
| West Worcestershire | | Conservative | | Harriett Baldwin (C) | Head of Currency Management for JP Morgan Chase | 1960 |
| Wigan | | Labour | | Lisa Nandy (L) | Senior Policy Adviser for The Children's Society & Councillor for Hammersmith and Fulham Borough Council | 1979 |
| Winchester | | Liberal Democrats | | Steve Brine (C) | Management Consultant | 1974 |
| Wirral South | | Labour | | Alison McGovern (L) | Communications Development Officer for National Rail & Councillor for Southwark Borough Council | 1980 |
| Wirral West | | Labour | | Esther McVey (C) | Businesswoman & TV Presenter | 1967 |
| Witham | | Conservative | | Priti Patel (C) | Corporate Relations Director for Diageo | 1972 |
| Woking | | Conservative | | Jonathan Lord (C) | Director of Saatchi & Saatchi & Councillor for Surrey County Council | 1962 |
| Wolverhampton North East | | Labour | | Emma Reynolds (L) | Public Affairs Consultant | 1977 |
| Wolverhampton South West | | Labour | | Paul Uppal (C) | Barrister | 1967 |
| Worcester | | Labour | | The Hon. Robin Walker (C) | Businessman | 1978 |
| Wycombe | | Conservative | | Steven Baker (C) | Management Consultant & retired Flight Lieutenant in the Royal Air Force | 1971 |
| Wyre Forest | | Health Concern | | Mark Garnier (C) | Investment Banker | 1963 |
| York Outer | | Liberal Democrats | | Julian Sturdy (C) | Farmer | 1971 |
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