# List of MPs elected in the 2001 United Kingdom general election

This is a list of members of Parliament (MPs) elected to the House of Commons at the 2001 general election, held on 7 June. The list is arranged by constituency. New MPs elected since the general election and changes in party allegiance are noted at the bottom of the page.
Notable newcomers to the House of Commons included David Cameron, David Miliband, Boris Johnson, John Thurso, George Osborne, Nigel Dodds, Chris Grayling, Andy Burnham, Adam Price, Alistair Carmichael, Angus Robertson, Chris Bryant, Norman Lamb, and Tom Watson (many of whom would go on to reach senior positions in government and/or their respective parties).
During the 2001–05 Parliament, Michael Martin was the Speaker, Tony Blair served as Prime Minister, and William Hague, Iain Duncan Smith and Michael Howard served as Leader of the Opposition. This Parliament was dissolved on 11 April 2005.

## By nation

* List of MPs for constituencies in Northern Ireland (2001–2005)
* List of MPs for constituencies in Scotland (2001–2005)
* List of MPs for constituencies in Wales (2001–2005)

## Composition

These representative diagrams show the composition of the parties in the 2001 general election.
Note: The Scottish National Party and Plaid Cymru sat together as a party group, while Sinn Féin did not take its seats. This is not the official 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.
| Affiliation | Affiliation | At Election | At dissolution |
| | Labour Party | 412 | 404 |
| | Conservative Party | 166 | 165 |
| | Liberal Democrats | 52 | 51 |
| | Ulster Unionist Party | 6 | 4 |
| | Scottish National Party | 5 | 3 |
| | Democratic Unionist Party | 5 | 6 |
| | Plaid Cymru | 4 | 3 |
| | Sinn Féin | 4 | 5 |
| | Social Democratic and Labour Party | 3 | 2 |
| | Independent | 1 | 1 |
| | Speaker | 1 | 1 |
| Total | Total | 659 | 659 |
| Notional government majority | Notional government majority | 167 | 164 |
| Effective government majority | Effective government majority | 170 | 165 |
The effective government majority was slightly higher because Sinn Féin members did not take up their seats and the speaker does not vote. Speaker Michael Martin technically represented Labour in a notional majority.
A :
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Aberavon | Dr Hywel Francis | Labour | Sir John Morris | Labour |
| Aberdeen Central | Frank Doran | Labour | Frank Doran | Labour |
| Aberdeen North | Malcolm Savidge | Labour | Malcolm Savidge | Labour |
| Aberdeen South | Anne Begg | Labour | Anne Begg | Labour |
| Airdrie and Shotts | Helen Liddell | Labour | Helen Liddell | Labour |
| Aldershot | Gerald Howarth | Conservative | Gerald Howarth | Conservative |
| Aldridge-Brownhills | Richard Shepherd | Conservative | Richard Shepherd | Conservative |
| Altrincham and Sale West | Graham Brady | Conservative | Graham Brady | Conservative |
| Alyn and Deeside | Mark Tami | Labour | Barry Jones | Labour |
| Amber Valley | Judy Mallaber | Labour | Judy Mallaber | Labour |
| Angus | Michael Weir | Scottish National Party | Andrew Welsh | Scottish National Party |
| Argyll and Bute | Alan Reid | Liberal Democrat | Ray Michie | Liberal Democrat |
| Arundel and South Downs | Howard Flight | Conservative | Howard Flight | Conservative |
| Ashfield | Geoff Hoon | Labour | Geoff Hoon | Labour |
| Ashford | Damian Green | Conservative | Damian Green | Conservative |
| Ashton-under-Lyne | David Heyes | Labour | Robert Sheldon | Labour |
| Aylesbury | David Lidington | Conservative | David Lidington | Conservative |
| Ayr | Sandra Osborne | Labour | Sandra Osborne | Labour |
| B |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Banbury | Tony Baldry | Conservative | Tony Baldry | Conservative |
| Banff and Buchan | Alex Salmond | Scottish National Party | Alex Salmond | Scottish National Party |
| Barking | Margaret Hodge | Labour | Margaret Hodge | Labour |
| Barnsley Central | Eric Illsley | Labour | Eric Illsley | Labour |
| Barnsley East and Mexborough | Jeff Ennis | Labour | Jeff Ennis | Labour |
| Barnsley West and Penistone | Michael Clapham | Labour | Michael Clapham | Labour |
| Barrow and Furness | John Hutton | Labour | John Hutton | Labour |
| Basildon | Angela Smith | Labour Co-operative | Angela Smith | Labour Co-operative |
| Basingstoke | Andrew Hunter | Conservative | Andrew Hunter | Conservative |
| Bassetlaw | John Mann | Labour | Joe Ashton | Labour |
| Bath | Don Foster | Liberal Democrat | Don Foster | Liberal Democrat |
| Batley and Spen | Mike Wood | Labour | Mike Wood | Labour |
| Battersea | Martin Linton | Labour | Martin Linton | Labour |
| Beaconsfield | Dominic Grieve | Conservative | Dominic Grieve | Conservative |
| Beckenham | Jacqui Lait | Conservative | Jacqui Lait | Conservative |
| Bedford | Patrick Hall | Labour | Patrick Hall | Labour |
| Belfast East | Peter Robinson | Democratic Unionist | Peter Robinson | Democratic Unionist |
| Belfast North | Nigel Dodds | Democratic Unionist | Cecil Walker | Ulster Unionist |
| Belfast South | The Rev. Martin Smyth | Ulster Unionist | The Rev. Martin Smyth | Ulster Unionist |
| Belfast West | Gerry Adams | Sinn Féin | Gerry Adams | Sinn Féin |
| Berwick-upon-Tweed | Alan James Beith | Liberal Democrat | Alan James Beith | Liberal Democrat |
| Bethnal Green and Bow | Oona King | Labour | Oona King | Labour |
| Beverley and Holderness | James Cran | Conservative | James Cran | Conservative |
| Bexhill and Battle | Gregory Barker | Conservative | Charles Wardle | Independent |
| Bexleyheath and Crayford | Nigel Beard | Labour | Nigel Beard | Labour |
| Billericay | John Baron | Conservative | Teresa Gorman | Conservative |
| Birkenhead | Frank Field | Labour | Frank Field | Labour |
| Birmingham, Edgbaston | Gisela Stuart | Labour | Gisela Stuart | Labour |
| Birmingham, Erdington | Siôn Simon | Labour | Robin Corbett | Labour |
| Birmingham, Hall Green | Steve McCabe | Labour | Stephen McCabe | Labour |
| Birmingham, Hodge Hill | Terry Davis (resigned) | Labour | Terry Davis | Labour |
| Birmingham, Ladywood | Clare Short | Labour | Clare Short | Labour |
| Birmingham, Northfield | Richard Burden | Labour | Richard Burden | Labour |
| Birmingham, Perry Barr | Khalid Mahmood | Labour | Jeff Rooker | Labour |
| Birmingham, Selly Oak | Dr Lynne Jones | Labour | Dr Lynne Jones | Labour |
| Birmingham, Sparkbrook and Small Heath | Roger Godsiff | Labour | Roger Godsiff | Labour |
| Birmingham, Yardley | Estelle Morris | Labour | Estelle Morris | Labour |
| Bishop Auckland | Derek Foster | Labour | Derek Foster | Labour |
| Blaby | Andrew Robathan | Conservative | Andrew Robathan | Conservative |
| Blackburn | Jack Straw | Labour | Jack Straw | Labour |
| Blackpool North and Fleetwood | Joan Humble | Labour | Joan Humble | Labour |
| Blackpool South | Gordon Marsden | Labour | Gordon Marsden | Labour |
| Blaenau Gwent | Llew Smith | Labour | Llew Smith | Labour |
| Blaydon | John McWilliam | Labour | John McWilliam | Labour |
| Blyth Valley | Ronnie Campbell | Labour | Ronnie Campbell | Labour |
| Bognor Regis and Littlehampton | Nick Gibb | Conservative | Nick Gibb | Conservative |
| Bolsover | Dennis Skinner | Labour | Dennis Skinner | Labour |
| Bolton North East | David Crausby | Labour | David Crausby | Labour |
| Bolton South East | Dr Brian Iddon | Labour | Dr Brian Iddon | Labour |
| Bolton West | Ruth Kelly | Labour | Ruth Kelly | Labour |
| Bootle | Joe Benton | Labour | Joe Benton | Labour |
| Boston and Skegness | Mark Simmonds | Conservative | Sir Richard Body | Conservative |
| Bosworth | David Tredinnick | Conservative | David Tredinnick | Conservative |
| Bournemouth East | David Atkinson | Conservative | David Atkinson | Conservative |
| Bournemouth West | Sir John Butterfill | Conservative | Sir John Butterfill | Conservative |
| Bracknell | Andrew MacKay | Conservative | Andrew MacKay | Conservative |
| Bradford North | Terry Rooney | Labour | Terry Rooney | Labour |
| Bradford South | Gerry Sutcliffe | Labour | Gerry Sutcliffe | Labour |
| Bradford West | Marsha Singh | Labour | Marsha Singh | Labour |
| Braintree | Alan Hurst | Labour | Alan Hurst | Labour |
| Brecon and Radnorshire | Roger Williams | Liberal Democrat | Richard Livsey | Liberal Democrat |
| Brent East | Paul Daisley (deceased) | Labour | Ken Livingstone | Independent |
| Brent North | Barry Gardiner | Labour | Barry Gardiner | Labour |
| Brent South | Paul Boateng | Labour | Paul Boateng | Labour |
| Brentford and Isleworth | Ann Keen | Labour | Ann Keen | Labour |
| Brentwood and Ongar | Eric Pickles | Conservative | Eric Pickles | Conservative |
| Bridgend | Win Griffiths | Labour | Win Griffiths | Labour |
| Bridgwater | Ian Liddell-Grainger | Conservative | Rt Hon Tom King | Conservative |
| Brigg and Goole | Ian Cawsey | Labour | Ian Cawsey | Labour |
| Brighton Kemptown | Dr Des Turner | Labour | Dr Des Turner | Labour |
| Brighton Pavilion | David Lepper | Labour Co-operative | David Lepper | Labour Co-operative |
| Bristol East | Jean Corston | Labour | Jean Corston | Labour |
| Bristol North West | Dr Doug Naysmith | Labour Co-operative | Dr Doug Naysmith | Labour Co-operative |
| Bristol South | Dawn Primarolo | Labour | Dawn Primarolo | Labour |
| Bristol West | Valerie Davey | Labour | Valerie Davey | Labour |
| Bromley and Chislehurst | Eric Forth | Conservative | Eric Forth | Conservative |
| Bromsgrove | Julie Kirkbride | Conservative | Julie Kirkbride | Conservative |
| Broxbourne | Marion Roe | Conservative | Marion Roe | Conservative |
| Broxtowe | Dr Nick Palmer | Labour | Dr Nick Palmer | Labour |
| Buckingham | John Bercow | Conservative | John Bercow | Conservative |
| Burnley | Peter Pike | Labour | Peter Pike | Labour |
| Burton | Janet Dean | Labour | Janet Dean | Labour |
| Bury North | David Chaytor | Labour | David Chaytor | Labour |
| Bury South | Ivan Lewis | Labour | Ivan Lewis | Labour |
| Bury St Edmunds | David Ruffley | Conservative | David Ruffley | Conservative |
| C |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Caernarfon | Hywel Williams | Plaid Cymru | Dafydd Wigley | Plaid Cymru |
| Caerphilly | Wayne David | Labour | Ron Davies | Labour |
| Caithness, Sutherland and Easter Ross | John Thurso | Liberal Democrat | Robert Maclennan | Liberal Democrat |
| Calder Valley | Christine McCafferty | Labour | Christine McCafferty | Labour |
| Camberwell and Peckham | Harriet Harman | Labour | Harriet Harman | Labour |
| Cambridge | Anne Campbell | Labour | Anne Campbell | Labour |
| Cannock Chase | Dr Tony Wright | Labour | Tony Wright | Labour |
| Canterbury | Julian Brazier | Conservative | Julian Brazier | Conservative |
| Cardiff Central | Jon Owen Jones | Labour Co-operative | Jon Owen Jones | Labour Co-operative |
| Cardiff North | Julie Morgan | Labour | Julie Morgan | Labour |
| Cardiff South and Penarth | Alun Michael | Labour Co-operative | Alun Michael | Labour Co-operative |
| Cardiff West | Kevin Brennan | Labour | Rhodri Morgan | Labour |
| Carlisle | Eric Martlew | Labour | Eric Martlew | Labour |
| Carmarthen East and Dinefwr | Adam Price | Plaid Cymru | Alan Williams | Labour |
| Carmarthen West and South Pembrokeshire | Nick Ainger | Labour | Nick Ainger | Labour |
| Carrick, Cumnock and Doon Valley | George Foulkes | Labour Co-operative | George Foulkes | Labour Co-operative |
| Carshalton and Wallington | Tom Brake | Liberal Democrat | Tom Brake | Liberal Democrat |
| Castle Point | Bob Spink | Conservative | Christine Butler | Labour |
| Central Fife | John MacDougall | Labour | Henry McLeish | Labour |
| Central Suffolk and North Ipswich | Sir Michael Lord | Conservative | Michael Lord | Conservative |
| Ceredigion | Simon Thomas | Plaid Cymru | Simon Thomas | Plaid Cymru |
| Charnwood | Stephen Dorrell | Conservative | Stephen Dorrell | Conservative |
| Chatham and Aylesford | Jonathan Shaw | Labour | Jonathan Shaw | Labour |
| Cheadle | Patsy Calton | Liberal Democrat | Stephen Day | Conservative |
| Cheltenham | Nigel Jones | Liberal Democrat | Nigel Jones | Liberal Democrat |
| Chesham and Amersham | Cheryl Gillan | Conservative | Cheryl Gillan | Conservative |
| City of Chester | Christine Russell | Labour | Christine Russell | Labour |
| Chesterfield | Paul Holmes | Liberal Democrat | Tony Benn | Labour |
| Chichester | Andrew Tyrie | Conservative | Andrew Tyrie | Conservative |
| Chingford and Woodford Green | Iain Duncan Smith | Conservative | Iain Duncan Smith | Conservative |
| Chipping Barnet | Sir Sydney Chapman | Conservative | Sydney Chapman | Conservative |
| Chorley | Lindsay Hoyle | Labour | Lindsay Hoyle | Labour |
| Christchurch | Christopher Chope | Conservative | Christopher Chope | Conservative |
| Cities of London and Westminster | Mark Field | Conservative | Peter Brooke | Conservative |
| Cleethorpes | Shona McIsaac | Labour | Shona McIsaac | Labour |
| Clwyd South | Martyn Jones | Labour | Martyn Jones | Labour |
| Clwyd West | Gareth Thomas | Labour | Gareth Thomas | Labour |
| Clydebank and Milngavie | Tony Worthington | Labour | Tony Worthington | Labour |
| Clydesdale | Jimmy Hood | Labour | Jimmy Hood | Labour |
| Coatbridge and Chryston | Tom Clarke | Labour | Tom Clarke | Labour |
| Colchester | Bob Russell | Liberal Democrat | Bob Russell | Liberal Democrat |
| Colne Valley | Kali Mountford | Labour | Kali Mountford | Labour |
| Congleton | Ann Winterton | Conservative | Ann Winterton | Conservative |
| Conwy | Betty Williams | Labour | Betty Williams | Labour |
| Copeland | Jack Cunningham | Labour | Jack Cunningham | Labour |
| Corby | Phil Hope | Labour Co-operative | Phil Hope | Labour Co-operative |
| Cotswold | Geoffrey Clifton-Brown | Conservative | Geoffrey-Clifton Brown | Conservative |
| Coventry North East | Bob Ainsworth | Labour | Bob Ainsworth | Labour |
| Coventry North West | Geoffrey Robinson | Labour | Geoffrey Robinson | Labour |
| Coventry South | Jim Cunningham | Labour | Jim Cunningham | Labour |
| Crawley | Laura Moffatt | Labour | Laura Moffatt | Labour |
| Crewe and Nantwich | Gwyneth Dunwoody | Labour | Gwyneth Dunwoody | Labour |
| Crosby | Claire Curtis-Thomas | Labour | Claire Curtis-Thomas | Labour |
| Croydon Central | Geraint Davies | Labour | Geraint Davies | Labour |
| Croydon North | Malcolm Wicks | Labour | Malcolm Wicks | Labour |
| Croydon South | Richard Ottaway | Conservative | Richard Ottaway | Conservative |
| Cumbernauld and Kilsyth | Rosemary McKenna | Labour | Rosemary McKenna | Labour |
| Cunninghame North | Brian Wilson | Labour | Brian Wilson | Labour |
| Cunninghame South | Brian Donohoe | Labour | Brian Donohoe | Labour |
| Cynon Valley | Ann Clwyd | Labour | Ann Clwyd | Labour |
| D |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Dagenham | Jon Cruddas | Labour | Judith Church | Labour |
| Darlington | Alan Milburn | Labour | Alan Milburn | Labour |
| Dartford | Dr Howard Stoate | Labour | Dr Howard Stoate | Labour |
| Daventry | Tim Boswell | Conservative | Tim Boswell | Conservative |
| Delyn | David Hanson | Labour | David Hanson | Labour |
| Denton and Reddish | Andrew Bennett | Labour | Andrew Bennett | Labour |
| Derby North | Bob Laxton | Labour | Bob Laxton | Labour |
| Derby South | Margaret Beckett | Labour | Margaret Beckett | Labour |
| Devizes | Michael Ancram | Conservative | Michael Ancram | Conservative |
| Dewsbury | Ann Taylor | Labour | Ann Taylor | Labour |
| Don Valley | Caroline Flint | Labour | Caroline Flint | Labour |
| Doncaster Central | Rosie Winterton | Labour | Rosie Winterton | Labour |
| Doncaster North | Kevin Hughes | Labour | Kevin Hughes | Labour |
| Dover | Gwyn Prosser | Labour | Gwyn Prosser | Labour |
| Dudley North | Ross Cranston | Labour | Ross Cranston | Labour |
| Dudley South | Ian Pearson | Labour | Ian Pearson | Labour |
| Dulwich and West Norwood | Tessa Jowell | Labour | Tessa Jowell | Labour |
| Dumbarton | John McFall | Labour Co-operative | John McFall | Labour Co-operative |
| Dumfries | Russell Brown | Labour | Russell Brown | Labour |
| Dundee East | Iain Luke | Labour | John McAllion | Labour |
| Dundee West | Ernie Ross | Labour | Ernie Ross | Labour |
| Dunfermline East | Gordon Brown | Labour | Gordon Brown | Labour |
| Dunfermline West | Rachel Squire | Labour | Rachel Squire | Labour |
| City of Durham | Gerry Steinberg | Labour | Gerry Steinberg | Labour |
| E |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Ealing North | Stephen Pound | Labour | Stephen Pound | Labour |
| Ealing Acton and Shepherd's Bush | Clive Soley | Labour | Clive Soley | Labour |
| Ealing Southall | Piara Khabra | Labour | Piara Khabra | Labour |
| Easington | John Cummings | Labour | John Cummings | Labour |
| East Antrim | Roy Beggs | Ulster Unionist | Roy Beggs | Ulster Unionist |
| East Devon | Hugo Swire | Conservative | Peter Emery | Conservative |
| East Ham | Stephen Timms | Labour | Stephen Timms | Labour |
| East Hampshire | Michael Mates | Conservative | Michael Mates | Conservative |
| East Kilbride | Adam Ingram | Labour | Adam Ingram | Labour |
| East Londonderry | Gregory Campbell | Democratic Unionist | William Ross | Ulster Unionist |
| East Lothian | Anne Picking | Labour | John Home Robertson | Labour |
| East Surrey | Peter Ainsworth | Conservative | Peter Ainsworth | Conservative |
| East Worthing and Shoreham | Tim Loughton | Conservative | Tim Loughton | Conservative |
| East Yorkshire | Greg Knight | Conservative | John Townend | Conservative |
| Eastbourne | Nigel Waterson | Conservative | Nigel Waterson | Conservative |
| Eastleigh | David Chidgey | Liberal Democrat | David Chidgey | Liberal Democrat |
| Eastwood | Jim Murphy | Labour | Jim Murphy | Labour |
| Eccles | Ian Stewart | Labour | Ian Stewart | Labour |
| Eddisbury | Stephen O'Brien | Conservative | Stephen O'Brien | Conservative |
| Edinburgh Central | Alistair Darling | Labour | Alistair Darling | Labour |
| Edinburgh East and Musselburgh | Gavin Strang | Labour | Gavin Strang | Labour |
| Edinburgh North and Leith | Mark Lazarowicz | Labour Co-operative | Malcolm Chisholm | Labour |
| Edinburgh South | Nigel Griffiths | Labour | Nigel Griffiths | Labour |
| Edinburgh West | John Barrett | Liberal Democrat | Donald Gorrie | Liberal Democrat |
| Edinburgh Pentlands | Dr Lynda Clark | Labour | Dr Lynda Clark | Labour |
| Edmonton | Andy Love | Labour Co-operative | Andy Love | Labour Co-operative |
| Ellesmere Port and Neston | Andrew Miller | Labour | Andrew Miller | Labour |
| Elmet | Colin Burgon | Labour | Colin Burgon | Labour |
| Eltham | Clive Efford | Labour | Clive Efford | Labour |
| Enfield North | Joan Ryan | Labour | Joan Ryan | Labour |
| Enfield Southgate | Stephen Twigg | Labour | Stephen Twigg | Labour |
| Epping Forest | Eleanor Laing | Conservative | Eleanor Laing | Conservative |
| Epsom and Ewell | Chris Grayling | Conservative | Archie Hamilton | Conservative |
| Erewash | Liz Blackman | Labour | Liz Blackman | Labour |
| Erith and Thamesmead | John Austin | Labour | John Austin | Labour |
| Esher and Walton | Ian Taylor | Conservative | Ian Taylor | Conservative |
| Exeter | Ben Bradshaw | Labour | Ben Bradshaw | Labour |
| F |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Falkirk East | Michael Connarty | Labour | Michael Connarty | Labour |
| Falkirk West | Eric Joyce | Labour | Eric Joyce | Labour |
| Falmouth and Camborne | Candy Atherton | Labour | Candy Atherton | Labour |
| Fareham | Mark Hoban | Conservative | Mark Hoban | Conservative |
| Faversham and Mid Kent | Hugh Robertson | Conservative | Andrew Rowe | Conservative |
| Feltham and Heston | Alan Keen | Labour Co-operative | Alan Keen | Labour Co-operative |
| Fermanagh and South Tyrone | Michelle Gildernew | Sinn Féin | Ken Maginnis | Ulster Unionist |
| Finchley and Golders Green | Dr Rudi Vis | Labour | Dr Rudi Vis | Labour |
| Folkestone and Hythe | Michael Howard | Conservative | Michael Howard | Conservative |
| Forest of Dean | Diana Organ | Labour | Diana Organ | Labour |
| Foyle | John Hume | Social Democratic and Labour | John Hume | Social Democratic and Labour |
| Fylde | Michael Jack | Conservative | Michael Jack | Conservative |
| G |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Gainsborough | Edward Leigh | Conservative | Edward Leigh | Conservative |
| Galloway and Upper Nithsdale | Peter Duncan | Conservative | Alasdair Morgan | Scottish National |
| Gateshead East and Washington West | Joyce Quin | Labour | Joyce Quin | Labour |
| Gedling | Vernon Coaker | Labour | Vernon Coaker | Labour |
| Gillingham | Paul Clark | Labour | Paul Clark | Labour |
| Glasgow, Anniesland | John Robertson | Labour | John Robertson | Labour |
| Glasgow Baillieston | Jimmy Wray | Labour | Jimmy Wray | Labour |
| Glasgow Cathcart | Tom Harris | Labour | John Maxton | Labour |
| Glasgow Govan | Mohammad Sarwar | Labour | Mohammad Sarwar | Labour |
| Glasgow Kelvin | George Galloway | Labour | George Galloway | Labour |
| Glasgow Maryhill | Ann McKechin | Labour | Maria Fyfe | Labour |
| Glasgow Pollok | Ian Davidson | Labour Co-operative | Ian Davidson | Labour Co-operative |
| Glasgow Rutherglen | Thomas McAvoy | Labour Co-operative | Thomas McAvoy | Labour Co-operative |
| Glasgow Shettleston | David Marshall | Labour | David Marshall | Labour |
| Glasgow, Springburn | Michael Martin | None - Speaker | Michael Martin | None - Speaker |
| Gloucester | Parmjit Dhanda | Labour | Tess Kingham | Labour |
| Gordon | Malcolm Bruce | Liberal Democrat | Malcolm Bruce | Liberal Democrat |
| Gosport | Peter Viggers | Conservative | Peter Viggers | Conservative |
| Gower | Martin Caton | Labour | Martin Caton | Labour |
| Grantham and Stamford | Quentin Davies | Conservative | Quentin Davies | Conservative |
| Gravesham | Chris Pond | Labour | Chris Pond | Labour |
| Great Grimsby | Austin Mitchell | Labour | Austin Mitchell | Labour |
| Great Yarmouth | Tony Wright | Labour | Tony Wright | Labour |
| Greenock and Inverclyde | David Cairns | Labour | Norman Godman | Labour |
| Greenwich and Woolwich | Nick Raynsford | Labour | Nick Raynsford | Labour |
| Guildford | Sue Doughty | Liberal Democrat | Nick St Aubyn | Conservative |
| H |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Hackney North and Stoke Newington | Diane Abbott | Labour | Diane Abbott | Labour |
| Hackney South and Shoreditch | Brian Sedgemore | Labour | Brian Sedgemore | Labour |
| Halesowen and Rowley Regis | Sylvia Heal | Labour | Sylvia Heal | Labour |
| Halifax | Alice Mahon | Labour | Alice Mahon | Labour |
| Haltemprice and Howden | David Davis | Conservative | David Davis | Conservative |
| Halton | Derek Twigg | Labour | Derek Twigg | Labour |
| Hamilton North and Bellshill | John Reid | Labour | John Reid | Labour |
| Hamilton South | Bill Tynan | Labour | Bill Tynan | Labour |
| Hammersmith and Fulham | Iain Coleman | Labour | Iain Coleman | Labour |
| Hampstead and Highgate | Glenda Jackson | Labour | Glenda Jackson | Labour |
| Harborough | Edward Garnier | Conservative | Edward Garnier | Conservative |
| Harlow | Bill Rammell | Labour | Bill Rammell | Labour |
| Harrogate and Knaresborough | Phil Willis | Liberal Democrat | Phil Willis | Liberal Democrat |
| Harrow East | Tony McNulty | Labour | Tony McNulty | Labour |
| Harrow West | Gareth Thomas | Labour | Gareth Thomas | Labour |
| Hartlepool | Peter Mandelson (resigned) | Labour | Peter Mandelson | Labour |
| Harwich | Ivan Henderson | Labour | Ivan Henderson | Labour |
| Hastings and Rye | Michael Foster | Labour | Michael Foster | Labour |
| Havant | David Willetts | Conservative | David Willetts | Conservative |
| Hayes and Harlington | John McDonnell | Labour | John McDonnell | Labour |
| Hazel Grove | Andrew Stunell | Liberal Democrat | Andrew Stunell | Liberal Democrat |
| Hemel Hempstead | Tony McWalter | Labour Co-operative | Tony McWalter | Labour Co-operative |
| Hemsworth | Jon Trickett | Labour | Jon Trickett | Labour |
| Hendon | Andrew Dismore | Labour | Andrew Dismore | Labour |
| Henley | Boris Johnson | Conservative | Michael Heseltine | Conservative |
| Hereford | Paul Keetch | Liberal Democrat | Paul Keetch | Liberal Democrat |
| Hertford and Stortford | Mark Prisk | Conservative | Bowen Wells | Conservative |
| Hertsmere | James Clappison | Conservative | James Clappison | Conservative |
| Hexham | Peter Atkinson | Conservative | Peter Atkinson | Conservative |
| Heywood and Middleton | Jim Dobbin | Labour Co-operative | Jim Dobbin | Labour Co-Operative |
| High Peak | Tom Levitt | Labour | Tom Levitt | Labour |
| Hitchin and Harpenden | Peter Lilley | Conservative | Peter Lilley | Conservative |
| Holborn and St Pancras | Frank Dobson | Labour | Frank Dobson | Labour |
| Hornchurch | John Cryer | Labour | John Cryer | Labour |
| Hornsey and Wood Green | Barbara Roche | Labour | Barbara Roche | Labour |
| Horsham | Francis Maude | Conservative | Francis Maude | Conservative |
| Houghton and Washington East | Fraser Kemp | Labour | Fraser Kemp | Labour |
| Hove | Ivor Caplin | Labour | Ivor Caplin | Labour |
| Huddersfield | Barry Sheerman | Labour Co-operative | Barry Sheerman | Labour Co-operative |
| Huntingdon | Jonathan Djanogly | Conservative | Rt Hon John Major | Conservative |
| Hyndburn | Greg Pope | Labour | Greg Pope | Labour |
| I |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Ilford North | Linda Perham | Labour | Linda Perham | Labour |
| Ilford South | Mike Gapes | Labour Co-operative | Mike Gapes | Labour Co-operative |
| Inverness East, Nairn and Lochaber | David Stewart | Labour | David Stewart | Labour |
| Ipswich | Jamie Cann (deceased) | Labour | Jamie Cann | Labour |
| Isle of Wight | Andrew Turner | Conservative | Peter Brand | Liberal Democrat |
| Islington North | Jeremy Corbyn | Labour | Jeremy Corbyn | Labour |
| Islington South and Finsbury | Chris Smith | Labour | Chris Smith | Labour |
| Islwyn | Don Touhig | Labour Co-operative | Don Touhig | Labour Co-operative |
| J |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Jarrow | Stephen Hepburn | Labour | Stephen Hepburn | Labour |
| K |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Keighley | Ann Cryer | Labour | Ann Cryer | Labour |
| Kensington and Chelsea | Michael Portillo | Conservative | Michael Portillo | Conservative |
| Kettering | Phil Sawford | Labour | Phil Sawford | Labour |
| Kilmarnock and Loudoun | Des Browne | Labour | Des Browne | Labour |
| Kingston and Surbiton | Edward Davey | Liberal Democrat | Ed Davey | Liberal Democrat |
| Kingston upon Hull East | John Prescott | Labour | Rt Hon John Prescott | Labour |
| Kingston upon Hull North | Kevin McNamara | Labour | Kevin McNamara | Labour |
| Kingston upon Hull West and Hessle | Alan Johnson | Labour | Alan Johnson | Labour |
| Kingswood | Roger Berry | Labour | Roger Berry | Labour |
| Kirkcaldy | Dr Lewis Moonie | Labour Co-operative | Lewis Moonie | Labour Co-operative |
| Knowsley North and Sefton East | George Howarth | Labour | George Howarth | Labour |
| Knowsley South | Edward O'Hara | Labour | Eddie O'Hara | Labour |
| L |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Lagan Valley | Jeffrey Donaldson | Ulster Unionist | Jeffrey Donaldson | Ulster Unionist |
| Lancaster and Wyre | Hilton Dawson | Labour | Hilton Dawson | Labour |
| Leeds Central | Hilary Benn | Labour | Hilary Benn | Labour |
| Leeds East | George Mudie | Labour | George Mudie | Labour |
| Leeds North East | Fabian Hamilton | Labour | Fabian Hamilton | Labour |
| Leeds North West | Harold Best | Labour | Harold Best | Labour |
| Leeds West | John Battle | Labour | John Battle | Labour |
| Leicester East | Keith Vaz | Labour | Keith Vaz | Labour |
| Leicester South | Jim Marshall (deceased) | Labour | Jim Marshall | Labour |
| Leicester West | Patricia Hewitt | Labour | Patricia Hewitt | Labour |
| Leigh | Andy Burnham | Labour | Lawrence Cunliffe | Labour |
| Leominster | Bill Wiggin | Conservative | Peter Temple-Morris | Labour |
| Lewes | Norman Baker | Liberal Democrat | Norman Baker | Liberal Democrat |
| Lewisham East | Bridget Prentice | Labour | Bridget Prentice | Labour |
| Lewisham West | Jim Dowd | Labour | Jim Dowd | Labour |
| Lewisham Deptford | Joan Ruddock | Labour | Joan Ruddock | Labour |
| Leyton and Wanstead | Harry Cohen | Labour | Harry Cohen | Labour |
| Lichfield | Michael Fabricant | Conservative | Michael Fabricant | Conservative |
| Lincoln | Gillian Merron | Labour | Gillian Merron | Labour |
| Linlithgow | Sir Tam Dalyell | Labour | Tam Dalyell | Labour |
| Liverpool, Garston | Maria Eagle | Labour | Maria Eagle | Labour |
| Liverpool, Riverside | Louise Ellman | Labour Co-operative | Louise Ellman | Labour Co-operative |
| Liverpool, Walton | Peter Kilfoyle | Labour | Peter Kilfoyle | Labour |
| Liverpool, Wavertree | Jane Kennedy | Labour | Jane Kennedy | Labour |
| Liverpool, West Derby | Bob Wareing | Labour | Bob Wareing | Labour |
| Livingston | Robin Cook | Labour | Robin Cook | Labour |
| Llanelli | Denzil Davies | Labour | Denzil Davies | Labour |
| Loughborough | Andy Reed | Labour Co-operative | Andy Reed | Labour Co-operative |
| Louth and Horncastle | Sir Peter Tapsell | Conservative | Sir Peter Tapsell | Conservative |
| Ludlow | Matthew Green | Liberal Democrat | Christopher Gill | Conservative |
| Luton North | Kelvin Hopkins | Labour | Kelvin Hopkins | Labour |
| Luton South | Margaret Moran | Labour | Margaret Moran | Labour |
| M |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Macclesfield | Sir Nicholas Winterton | Conservative | Sir Nicholas Winterton | Conservative |
| Maidenhead | Theresa May | Conservative | Theresa May | Conservative |
| Maidstone and The Weald | Ann Widdecombe | Conservative | Ann Widdecombe | Conservative |
| Makerfield | Ian McCartney | Labour | Ian McCartney | Labour |
| Maldon and East Chelmsford | John Whittingdale | Conservative | John Whittingdale | Conservative |
| Manchester Central | Tony Lloyd | Labour | Tony Lloyd | Labour |
| Manchester, Blackley | Graham Stringer | Labour | Graham Stringer | Labour |
| Manchester, Gorton | Gerald Kaufman | Labour | Gerald Kaufman | Labour |
| Manchester, Withington | Keith Bradley | Labour | Keith Bradley | Labour |
| Mansfield | Alan Meale | Labour | Alan Meale | Labour |
| Medway | Robert Marshall-Andrews | Labour | Robert Marshall-Andrews | Labour |
| Meirionnydd Nant Conwy | Elfyn Llwyd | Plaid Cymru | Elfyn Llwyd | Plaid Cymru |
| Meriden | Caroline Spelman | Conservative | Caroline Spelman | Conservative |
| Merthyr Tydfil and Rhymney | Dai Havard | Labour | Ted Rowlands | Labour |
| Mid Bedfordshire | Jonathan Sayeed | Conservative | Jonathan Sayeed | Conservative |
| Mid Dorset and North Poole | Annette Brooke | Liberal Democrat | Christopher Fraser | Conservative |
| Mid Norfolk | Keith Simpson | Conservative | Keith Simpson | Conservative |
| Mid Sussex | Nicholas Soames | Conservative | Nicholas Soames | Conservative |
| Mid Ulster | Martin McGuinness | Sinn Féin | Martin McGuinness | Sinn Féin |
| Mid Worcestershire | Peter Luff | Conservative | Peter Luff | Conservative |
| Middlesbrough | Sir Stuart Bell | Labour | Sir Stuart Bell | Labour |
| Middlesbrough South and East Cleveland | Dr Ashok Kumar | Labour | Dr Ashok Kumar | Labour |
| Midlothian | David Hamilton | Labour | Eric Clarke | Labour |
| Milton Keynes South West | Dr Phyllis Starkey | Labour | Dr Phyllis Starkey | Labour |
| Mitcham and Morden | Siobhain McDonagh | Labour | Siobhain McDonagh | Labour |
| Mole Valley | Sir Paul Beresford | Conservative | Sir Paul Beresford | Conservative |
| Monmouth | Huw Edwards | Labour | Huw Edwards | Labour |
| Montgomeryshire | Lembit Öpik | Liberal Democrat | Lembit Öpik | Liberal Democrat |
| Moray | Angus Robertson | Scottish National Party | Margaret Ewing | Scottish National Party |
| Morecambe and Lunesdale | Geraldine Smith | Labour | Geraldine Smith | Labour |
| Morley and Rothwell | Colin Challen | Labour | John Gunnell | Labour |
| Motherwell and Wishaw | Frank Roy | Labour | Frank Roy | Labour |
| N |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Neath | Peter Hain | Labour | Peter Hain | Labour |
| New Forest East | Dr Julian Lewis | Conservative | Dr Julian Lewis | Conservative |
| New Forest West | Desmond Swayne | Conservative | Desmond Swayne | Conservative |
| Newark | Patrick Mercer | Conservative | Fiona Jones | Labour |
| Newbury | David Rendel | Liberal Democrat | David Rendel | Liberal Democrat |
| Newcastle upon Tyne Central | Jim Cousins | Labour | Jim Cousins | Labour |
| Newcastle upon Tyne East and Wallsend | Nick Brown | Labour | Nick Brown | Labour |
| Newcastle upon Tyne North | Doug Henderson | Labour | Doug Henderson | Labour |
| Newcastle-under-Lyme | Paul Farrelly | Labour | Llin Golding | Labour |
| Newport East | Alan Howarth | Labour | Alan Howarth | Labour |
| Newport West | Paul Flynn | Labour | Paul Flynn | Labour |
| Newry and Armagh | Seamus Mallon | Social Democratic and Labour | Seamus Mallon | Social Democratic and Labour |
| Normanton | Bill O'Brien | Labour | Bill O'Brien | Labour |
| North Antrim | The Rev. Ian Paisley | Democratic Unionist | The Rev. Ian Paisley | Democratic Unionist |
| North Cornwall | Paul Tyler | Liberal Democrat | Paul Tyler | Liberal Democrat |
| North Devon | Nick Harvey | Liberal Democrat | Nick Harvey | Liberal Democrat |
| North Dorset | Robert Walter | Conservative | Robert Walter | Conservative |
| North Down | Sylvia Hermon | Ulster Unionist | Robert McCartney | UK Unionist |
| North Durham | Kevan Jones | Labour | Giles Radice | Labour |
| North East Bedfordshire | Alistair Burt | Conservative | Sir Nicholas Lyell | Conservative |
| North East Cambridgeshire | Malcolm Moss | Conservative | Malcolm Moss | Conservative |
| North East Derbyshire | Harry Barnes | Labour | Harry Barnes | Labour |
| North East Fife | Sir Menzies Campbell | Liberal Democrat | Sir Menzies Campbell | Liberal Democrat |
| North East Hampshire | James Arbuthnot | Conservative | James Arbuthnot | Conservative |
| North East Hertfordshire | Oliver Heald | Conservative | Oliver Heald | Conservative |
| North East Milton Keynes | Brian White | Labour | Brian White | Labour |
| North Essex | Bernard Jenkin | Conservative | Bernard Jenkin | Conservative |
| North Norfolk | Norman Lamb | Liberal Democrat | David Prior | Conservative |
| North Shropshire | Owen Paterson | Conservative | Owen Paterson | Conservative |
| North Southwark and Bermondsey | Simon Hughes | Liberal Democrat | Simon Hughes | Liberal Democrat |
| North Swindon | Michael Wills | Labour | Michael Wills | Labour |
| North Tayside | Peter Wishart | Scottish National Party | John Swinney | Scottish National Party |
| North Thanet | Roger Gale | Conservative | Roger Gale | Conservative |
| North Tyneside | Stephen Byers | Labour | Stephen Byers | Labour |
| North Warwickshire | Mike O'Brien | Labour | Mike O'Brien | Labour |
| North West Cambridgeshire | Sir Brian Mawhinney | Conservative | Sir Brian Mawhinney | Conservative |
| North West Durham | Hilary Armstrong | Labour | Hilary Armstrong | Labour |
| North West Hampshire | Sir George Young, 6th Baronet | Conservative | Sir George Young, 6th Baronet | Conservative |
| North West Leicestershire | David Taylor | Labour Co-operative | David Taylor | Labour Co-operative |
| North West Norfolk | Henry Bellingham | Conservative | George Turner | Labour |
| North Wiltshire | James Gray | Conservative | James Gray | Conservative |
| Northampton North | Sally Keeble | Labour | Sally Keeble | Labour |
| Northampton South | Tony Clarke | Labour | Tony Clarke | Labour |
| Northavon | Steve Webb | Liberal Democrat | Steve Webb | Liberal Democrat |
| Norwich North | Dr Ian Gibson | Labour | Dr Ian Gibson | Labour |
| Norwich South | Charles Clarke | Labour | Charles Clarke | Labour |
| Nottingham East | John Heppell | Labour | John Heppell | Labour |
| Nottingham North | Graham Allen | Labour | Graham Allen | Labour |
| Nottingham South | Alan Simpson | Labour | Alan Simpson | Labour |
| Nuneaton | Bill Olner | Labour | Bill Olner | Labour |
| O |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Ochil | Martin O'Neill | Labour | Martin O'Neill | Labour |
| Ogmore | Sir Ray Powell | Labour | Sir Ray Powell | Labour |
| Old Bexley and Sidcup | Derek Conway | Conservative | Sir Edward Heath | Conservative |
| Oldham East and Saddleworth | Phil Woolas | Labour | Phil Woolas | Labour |
| Oldham West and Royton | Michael Meacher | Labour | Michael Meacher | Labour |
| Orkney and Shetland | Alistair Carmichael | Liberal Democrat | Jim Wallace | Liberal Democrat |
| Orpington | John Horam | Conservative | John Horam | Conservative |
| Oxford East | Andrew Smith | Labour | Andrew Smith | Labour |
| Oxford West and Abingdon | Dr Evan Harris | Liberal Democrat | Dr Evan Harris | Liberal Democrat |
| P |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Paisley North | Irene Adams | Labour | Irene Adams | Labour |
| Paisley South | Douglas Alexander | Labour | Douglas Alexander | Labour |
| Pendle | Gordon Prentice | Labour | Gordon Prentice | Labour |
| Penrith and The Border | David Maclean | Conservative | David Maclean | Conservative |
| Perth | Annabelle Ewing | Scottish National Party | Roseanna Cunningham | Scottish National Party |
| Peterborough | Helen Clark | Labour | Helen Clark | Labour |
| Plymouth, Devonport | David Jamieson | Labour | David Jamieson | Labour |
| Plymouth, Sutton | Linda Gilroy | Labour Co-operative | Linda Gilroy | Labour Co-operative |
| Pontefract and Castleford | Yvette Cooper | Labour | Yvette Cooper | Labour |
| Pontypridd | Dr Kim Howells | Labour | Dr Kim Howells | Labour |
| Poole | Robert Syms | Conservative | Robert Syms | Conservative |
| Poplar and Canning Town | Jim Fitzpatrick | Labour | Jim Fitzpatrick | Labour |
| Portsmouth North | Syd Rapson | Labour | Syd Rapson | Labour |
| Portsmouth South | Mike Hancock | Liberal Democrat | Mike Hancock | Liberal Democrat |
| Preseli Pembrokeshire | Jackie Lawrence | Labour | Jackie Lawrence | Labour |
| Preston | Mark Hendrick | Labour Co-operative | Mark Hendrick | Labour |
| Pudsey | Paul Truswell | Labour | Paul Truswell | Labour |
| Putney | Tony Colman | Labour | Tony Colman | Labour |
| R |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Rayleigh | Mark Francois | Conservative | Dr Michael Clark | Conservative |
| Reading East | Jane Griffiths | Labour | Jane Griffiths | Labour |
| Reading West | Martin Salter | Labour | Martin Salter | Labour |
| Redcar | Vera Baird | Labour | Dr Mo Mowlam | Labour |
| Redditch | Jacqui Smith | Labour | Jacqui Smith | Labour |
| Regent's Park and Kensington North | Karen Buck | Labour | Karen Buck | Labour |
| Reigate | Crispin Blunt | Conservative | Crispin Blunt | Conservative |
| Rhondda | Chris Bryant | Labour | Allan Rogers | Labour |
| Ribble Valley | Nigel Evans | Conservative | Nigel Evans | Conservative |
| Richmond (Yorks) | William Hague | Conservative | William Hague | Conservative |
| Richmond Park | Dr Jenny Tonge | Liberal Democrat | Dr Jenny Tonge | Liberal Democrat |
| Rochdale | Lorna Fitzsimons | Labour | Lorna Fitzsimmons | Labour |
| Rochford and Southend East | Sir Teddy Taylor | Conservative | Sir Teddy Taylor | Conservative |
| Romford | Andrew Rosindell | Conservative | Eileen Gordon | Labour |
| Romsey | Sandra Gidley | Liberal Democrat | Sandra Gidley | Liberal Democrat |
| Ross, Skye and Inverness West | Charles Kennedy | Liberal Democrat | Charles Kennedy | Liberal Democrat |
| Rossendale and Darwen | Janet Anderson | Labour | Janet Anderson | Labour |
| Rother Valley | Kevin Barron | Labour | Kevin Barron | Labour |
| Rotherham | Dr Denis MacShane | Labour | Dr Denis MacShane | Labour |
| Roxburgh and Berwickshire | Sir Archy Kirkwood | Liberal Democrat | Sir Archy Kirkwood | Liberal Democrat |
| Rugby and Kenilworth | Andy King | Labour | Andy King | Labour |
| Ruislip-Northwood | John Wilkinson | Conservative | John Wilkinson | Conservative |
| Runnymede and Weybridge | Philip Hammond | Conservative | Philip Hammond | Conservative |
| Rushcliffe | Kenneth Clarke | Conservative | Kenneth Clarke | Conservative |
| Rutland and Melton | Alan Duncan | Conservative | Alan Duncan | Conservative |
| Ryedale | John Greenway | Conservative | John Greenway | Conservative |
| S |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Saffron Walden | Sir Alan Haselhurst | Conservative | Sir Alan Haselhurst | Conservative |
| St Albans | Kerry Pollard | Labour | Kerry Pollard | Labour |
| St Helens North | David Watts | Labour | David Watts | Labour |
| St Helens South | Shaun Woodward | Labour | Gerry Bermingham | Labour |
| St Ives | Andrew George | Liberal Democrat | Andrew George | Liberal Democrat |
| Salford | Hazel Blears | Labour | Hazel Blears | Labour |
| Salisbury | Robert Key | Conservative | Robert Key | Conservative |
| Scarborough and Whitby | Lawrie Quinn | Labour | Lawrie Quinn | Labour |
| Scunthorpe | Elliot Morley | Labour | Elliot Morley | Labour |
| Sedgefield | Tony Blair | Labour | Tony Blair | Labour |
| Selby | John Grogan | Labour | John Grogan | Labour |
| Sevenoaks | Michael Fallon | Conservative | Michael Fallon | Conservative |
| Sheffield Central | Richard Caborn | Labour | Richard Caborn | Labour |
| Sheffield Attercliffe | Clive Betts | Labour | Clive Betts | Labour |
| Sheffield Brightside | David Blunkett | Labour | David Blunkett | Labour |
| Sheffield Hallam | Richard Allan | Liberal Democrat | Richard Allan | Liberal Democrat |
| Sheffield Heeley | Meg Munn | Labour Co-operative | Bill Michie | Labour |
| Sheffield Hillsborough | Helen Jackson | Labour | Helen Jackson | Labour |
| Sherwood | Paddy Tipping | Labour | Paddy Tipping | Labour |
| Shipley | Chris Leslie | Labour | Chris Leslie | Labour |
| Shrewsbury and Atcham | Paul Marsden | Labour | Paul Marsden | Labour |
| Sittingbourne and Sheppey | Derek Wyatt | Labour | Derek Wyatt | Labour |
| Skipton and Ripon | David Curry | Conservative | David Curry | Conservative |
| Sleaford and North Hykeham | Douglas Hogg | Conservative | Douglas Hogg | Conservative |
| Slough | Fiona Mactaggart | Labour | Fiona Mactaggart | Labour |
| Solihull | John Taylor | Conservative | John Taylor | Conservative |
| Somerton and Frome | David Heath | Liberal Democrat | David Heath | Liberal Democrat |
| South Antrim | David Burnside | Ulster Unionist | William McCrea | Democratic Unionist |
| South Cambridgeshire | Andrew Lansley | Conservative | Andrew Lansley | Conservative |
| South Derbyshire | Mark Todd | Labour | Mark Todd | Labour |
| South Dorset | Jim Knight | Labour | Ian Bruce | Conservative |
| South Down | Eddie McGrady | Social Democratic and Labour | Eddie McGrady | Social Democratic and Labour |
| South East Cambridgeshire | James Paice | Conservative | James Paice | Conservative |
| South East Cornwall | Colin Breed | Liberal Democrat | Colin Breed | Liberal Democrat |
| South Holland and The Deepings | John Hayes | Conservative | John Hayes | Conservative |
| South Norfolk | Richard Bacon | Conservative | John MacGregor | Conservative |
| South Ribble | David Borrow | Labour | David Borrow | Labour |
| South Shields | David Miliband | Labour | Dr David Clark | Labour |
| South Staffordshire | Sir Patrick Cormack | Conservative | Sir Patrick Cormack | Conservative |
| South Suffolk | Tim Yeo | Conservative | Tim Yeo | Conservative |
| South Swindon | Julia Drown | Labour | Julia Drown | Labour |
| South Thanet | Dr Stephen Ladyman | Labour | Dr Stephen Ladyman | Labour |
| South West Bedfordshire | Andrew Selous | Conservative | Sir David Madel | Conservative |
| South West Devon | Gary Streeter | Conservative | Gary Streeter | Conservative |
| South West Hertfordshire | Richard Page | Conservative | Richard Page | Conservative |
| South West Norfolk | Gillian Shephard | Conservative | Gillian Shephard | Conservative |
| South West Surrey | Virginia Bottomley | Conservative | Virginia Bottomley | Conservative |
| Southampton, Itchen | John Denham | Labour | John Denham | Labour |
| Southampton, Test | Dr Alan Whitehead | Labour | Dr Alan Whitehead | Labour |
| Southend West | David Amess | Conservative | David Amess | Conservative |
| Southport | Dr John Pugh | Liberal Democrat | Ronnie Fearn | Liberal Democrat |
| Spelthorne | David Wilshire | Conservative | David Wilshire | Conservative |
| Stafford | David Kidney | Labour | David Kidney | Labour |
| Staffordshire Moorlands | Charlotte Atkins | Labour | Charlotte Atkins | Labour |
| Stalybridge and Hyde | James Purnell | Labour | Tom Pendry | Labour |
| Stevenage | Barbara Follett | Labour | Barbara Follett | Labour |
| Stirling | Anne McGuire | Labour | Anne McGuire | Labour |
| Stockport | Ann Coffey | Labour | Ann Coffey | Labour |
| Stockton North | Frank Cook | Labour | Frank Cook | Labour |
| Stockton South | Dari Taylor | Labour | Dari Taylor | Labour |
| Stoke-on-Trent Central | Mark Fisher | Labour | Mark Fisher | Labour |
| Stoke-on-Trent North | Joan Walley | Labour | Joan Walley | Labour |
| Stoke-on-Trent South | George Stevenson | Labour | George Stevenson | Labour |
| Stone | William Cash | Conservative | William Cash | Conservative |
| Stourbridge | Debra Shipley | Labour | Debra Shipley | Labour |
| Strangford | Iris Robinson | Democratic Unionist | John Taylor | Ulster Unionist |
| Stratford-on-Avon | John Maples | Conservative | John Maples | Conservative |
| Strathkelvin and Bearsden | John Lyons | Labour | Sam Galbraith | Labour |
| Streatham | Keith Hill | Labour | Keith Hill | Labour |
| Stretford and Urmston | Beverley Hughes | Labour | Beverley Hughes | Labour |
| Stroud | David Drew | Labour Co-operative | David Drew | Labour Co-operative |
| Suffolk Coastal | John Gummer | Conservative | John Gummer | Conservative |
| Sunderland North | Bill Etherington | Labour | Bill Etherington | Labour |
| Sunderland South | Chris Mullin | Labour | Chris Mullin | Labour |
| Surrey Heath | Nick Hawkins | Conservative | Nick Hawkins | Conservative |
| Sutton and Cheam | Paul Burstow | Liberal Democrat | Paul Burstow | Liberal Democrat |
| Sutton Coldfield | Andrew Mitchell | Conservative | Sir Norman Fowler | Conservative |
| Swansea East | Donald Anderson | Labour | Donald Anderson | Labour |
| Swansea West | Alan Williams | Labour | Alan Williams | Labour |
| T |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Tamworth | Brian Jenkins | Labour | Brian Jenkins | Labour |
| Tatton | George Osborne | Conservative | Martin Bell | Independent |
| Taunton | Adrian Flook | Conservative | Jackie Ballard | Liberal Democrat |
| Teignbridge | Richard Younger-Ross | Liberal Democrat | Patrick Nicholls | Conservative |
| Telford | David Wright | Labour | Bruce Grocott | Labour |
| Tewkesbury | Laurence Robertson | Conservative | Laurence Robertson | Conservative |
| Thurrock | Andrew MacKinlay | Labour | Andrew MacKinlay | Labour |
| Tiverton and Honiton | Angela Browning | Conservative | Angela Browning | Conservative |
| Tonbridge and Malling | Sir John Stanley | Conservative | Sir John Stanley | Conservative |
| Tooting | Tom Cox | Labour | Tom Cox | Labour |
| Torbay | Adrian Sanders | Liberal Democrat | Adrian Sanders | Liberal Democrat |
| Torfaen | Paul Murphy | Labour | Paul Murphy | Labour |
| Torridge and West Devon | John Burnett | Liberal Democrat | John Burnett | Liberal Democrat |
| Totnes | Anthony Steen | Conservative | Anthony Steen | Conservative |
| Tottenham | David Lammy | Labour | David Lammy | Labour |
| Truro and St Austell | Matthew Taylor | Liberal Democrat | Matthew Taylor | Liberal Democrat |
| Tunbridge Wells | Archie Norman | Conservative | Archie Norman | Conservative |
| Tweeddale, Ettrick and Lauderdale | Michael Moore | Liberal Democrat | Michael Moore | Liberal Democrat |
| Twickenham | Dr Vincent Cable | Liberal Democrat | Dr Vincent Cable | Liberal Democrat |
| Tyne Bridge | David Clelland | Labour | David Clelland | Labour |
| Tynemouth | Alan Campbell | Labour | Alan Campbell | Labour |
| U |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Upminster | Angela Watkinson | Conservative | Keith Darvill | Labour |
| Upper Bann | David Trimble | Ulster Unionist | David Trimble | Ulster Unionist |
| Uxbridge | John Randall | Conservative | John Randall | Conservative |
| V |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Vale of Clwyd | Chris Ruane | Labour | Chris Ruane | Labour |
| Vale of Glamorgan | John Smith | Labour | John Smith | Vale of Glamorgan |
| Vale of York | Anne McIntosh | Conservative | Anne McIntosh | Conservative |
| Vauxhall | Kate Hoey | Labour | Kate Hoey | Labour |
| W |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Wakefield | David Hinchliffe | Labour | David Hinchliffe | Labour |
| Wallasey | Angela Eagle | Labour | Angela Eagle | Labour |
| Walsall North | David Winnick | Labour | David Winnick | Labour |
| Walsall South | Bruce George | Labour | Bruce George | Labour |
| Walthamstow | Neil Gerrard | Labour | Neil Gerrard | Labour |
| Wansbeck | Denis Murphy | Labour | Denis Murphy | Labour |
| Wansdyke | Dan Norris | Labour | Dan Norris | Labour |
| Wantage | Robert Jackson | Conservative | Robert Jackson | Conservative |
| Warley | John Spellar | Labour | John Spellar | Labour |
| Warrington North | Helen Jones | Labour | Helen Jones | Labour |
| Warrington South | Helen Southworth | Labour | Helen Southworth | Labour |
| Warwick and Leamington | James Plaskitt | Labour | James Plaskitt | Labour |
| Watford | Claire Ward | Labour | Claire Ward | Labour |
| Waveney | Bob Blizzard | Labour | Bob Blizzard | Labour |
| Wealden | Charles Hendry | Conservative | Sir Geoffrey Johnson-Smith | Conservative |
| Weaver Vale | Mike Hall | Labour | Mike Hall | Labour |
| Wellingborough | Paul Stinchcombe | Labour | Paul Stinchcombe | Labour |
| Wells | David Heathcoat-Amory | Conservative | David Heathcoat-Amory | Conservative |
| Welwyn Hatfield | Melanie Johnson | Labour | Melanie Johnson | Labour |
| Wentworth | John Healey | Labour | John Healey | Labour |
| West Aberdeenshire and Kincardine | Sir Robert Smith | Liberal Democrat | Sir Robert Smith | Liberal Democrat |
| West Bromwich East | Tom Watson | Labour | Peter Snape | Labour |
| West Bromwich West | Adrian Bailey | Labour Co-operative | Adrian Bailey | Labour Co-operative |
| West Chelmsford | Simon Burns | Conservative | Simon Burns | Conservative |
| West Derbyshire | Patrick McLoughlin | Conservative | Patrick McLoughlin | Conservative |
| West Dorset | Oliver Letwin | Conservative | Oliver Letwin | Conservative |
| West Ham | Tony Banks | Labour | Tony Banks | Labour |
| West Lancashire | Colin Pickthall | Labour | Colin Pickthall | Labour |
| West Renfrewshire | James Sheridan | Labour | Tommy Graham | Labour |
| West Suffolk | Richard Spring | Conservative | Richard Spring | Conservative |
| West Tyrone | Pat Doherty | Sinn Féin | William Thompson | Ulster Unionist |
| West Worcestershire | Sir Michael Spicer | Conservative | Sir Michael Spicer | Conservative |
| Westbury | Dr Andrew Murrison | Conservative | David Faber | Conservative |
| Western Isles | Calum Macdonald | Labour | Calum Macdonald | Labour |
| Westmorland and Lonsdale | Tim Collins | Conservative | Tim Collins | Conservative |
| Weston-Super-Mare | Brian Cotter | Liberal Democrat | Brian Cotter | Liberal Democrat |
| Wigan | Neil Turner | Labour | Neil Turner | Labour |
| Wimbledon | Roger Casale | Labour | Roger Casale | Labour |
| Winchester | Mark Oaten | Liberal Democrat | Mark Oaten | Liberal Democrat |
| Windsor | Michael Trend | Conservative | Michael Trend | Conservative |
| Wirral South | Ben Chapman | Labour | Ben Chapman | Labour |
| Wirral West | Stephen Hesford | Labour | Stephen Hesford | Labour |
| Witney | David Cameron | Conservative | Shaun Woodward | Conservative |
| Woking | Humfrey Malins | Conservative | Humfrey Malins | Conservative |
| Wokingham | John Redwood | Conservative | John Redwood | Conservative |
| Wolverhampton North East | Ken Purchase | Labour Co-operative | Ken Purchase | Labour Co-operative |
| Wolverhampton South East | Dennis Turner | Labour Co-operative | Dennis Turner | Labour Co-operative |
| Wolverhampton South West | Rob Marris | Labour | Jenny Jones | Labour |
| Woodspring | Dr Liam Fox | Conservative | Dr Liam Fox | Conservative |
| Worcester | Mike Foster | Labour | Mike Foster | Labour |
| Workington | Tony Cunningham | Labour | Dale Campbell-Savours | Labour |
| Worsley | Terry Lewis | Labour | Terry Lewis | Labour |
| Worthing West | Peter Bottomley | Conservative | Peter Bottomley | Conservative |
| The Wrekin | Peter Bradley | Labour | Peter Bradley | Labour |
| Wrexham | Ian Lucas | Labour | Dr John Marek | Labour |
| Wycombe | Paul Goodman | Conservative | Sir Ray Whitney | Conservative |
| Wyre Forest | Dr Richard Taylor | Independent | David Lock | Labour |
| Wythenshawe and Sale East | Paul Goggins | Labour | Paul Goggins | Labour |
| Y |||||
| Constituency | Elected MP | Elected party | Previous MP | Previous party |
| Yeovil | David Laws | Liberal Democrat | Paddy Ashdown | Liberal Democrat |
| Ynys Môn | Albert Owen | Labour | Ieuan Wyn Jones | Plaid Cymru |
| City of York | Hugh Bayley | Labour | Hugh Bayley | Labour |

## By-elections

There were six by-elections in the 2001–2005 Parliament. Each were in seats held by the governing Labour party, four of which were held and two won by the Liberal Democrats. Four by-elections were a result of the death of the incumbent MP.
| By - Election | Date | Incumbent | Party | Winner | Party | Cause |
| Ipswich | 22 November 2001 | Jamie Cann | Labour | Chris Mole | Labour | Death of Incumbent |
| Ogmore | 14 February 2002 | Sir Raymond Powell | Labour | Huw Irranca-Davies | Labour | Death of Incumbent |
| Brent East | 18 September 2003 | Paul Daisley | Labour | Sarah Teather | Liberal Democrats | Death of Incumbent |
| Leicester South | 15 July 2004 | Jim Marshall | Labour | Parmjit Singh Gill | Liberal Democrats | Death of Incumbent |
| Birmingham Hodge Hill | 15 July 2004 | Terry Davis | Labour | Liam Byrne | Labour | Resignation on appointment as Secretary-General of the Council of Europe |
| Hartlepool | 30 September 2004 | Peter Mandelson | Labour | Iain Wright | Labour | Resignation on appointment as European Commissioner |

## Defections, Suspensions and Resignations
### 2001

* Paul Marsden (Shrewsbury and Atcham) - Joined the Liberal Democrats from Labour on 10 December

### 2002

* Andrew Hunter (Basingstoke) - resigned the Conservative whip on 2 October

### 2003

* Martin Smyth (Belfast South), David Burnside (South Antrim), and Jeffrey Donaldson (Lagan Valley) - Resigned the Ulster Unionist whip on 23 June
* George Galloway (Glasgow Kelvin) - Expelled from the Labour Party 23 October

### 2004

* Jeffrey Donaldson (Lagan Valley) - Joined the Democratic Unionist Party on 5 January
* Martin Smyth (Belfast South) and David Burnside (South Antrim) - Resumed taking the Ulster Unionist Whip on 9 January
* George Galloway (Glasgow Kelvin) - Formed RESPECT The Unity Coalition on 25 January
* Ann Winterton (Congleton) - Conservative whip was withdrawn on 25 February and restored on 31 March.
* Andrew Hunter (Basingstoke) - Took the Democratic Unionist Party whip on 10 December

### 2005

* Robert Jackson (Wantage) - Joined the Labour Party from the Conservatives on 15 January
* Jonathan Sayeed (Mid Bedfordshire) - Conservative whip temporarily suspended on 3 February to 7 March; whip permanently suspended later in March
* Howard Flight (Arundel and South Downs) - Conservative whip was withdrawn on 25 March.
* Paul Marsden (Shrewsbury and Atcham) - Resigned from the Liberal Democrats and declared his support for Labour on 5 April.