| Jenny | UNGLESS | David | Maclean | None. |
| Caroline | USHER | David | Heathcoat-Amory | None. |
| Kitty | USSHER | Adam | Ingram | Chief Economist, Britain in Europe Campaign Ltd (cross-party pro-European organisation); Member, London Borough of Lambeth. |
| Susan | UTTING | Edward | O'Hara | None. |
| Jordi | VAQUER FANES | Rachel | Squire | None. |
| Deborah | VAUGHAN | Diane | Abbott | None. |
| Valerie | VAZ | Keith | Vaz | None. |
| Valerie | VENESS | Jeremy | Corbyn | None. |
| Miranda | VILLIERS | Hugo | Swire | None. |
| Peter | VINES | John | Gummer | None. |
| Margaret | VOYSEY PAUN | Helen | Brinton | None. |
| Gabrielle | WALKER | Helen | Southworth | Consultant, New Scientist. |
| Timothy | WALKER | Dr Jack | Cunningham | Public Affairs Manager, Turner Broadcasting System Europe Ltd. |
| Vivian | WALKER | Humfrey | Malins | None. |
| Emily | WALLER | Matthew | Taylor | None. |
| Charlotte | WALLIS | Kenneth | Clarke | None. |
| Lynda | WALTHO | Sylvia | Heal | None. |
| Anita | WARD | Siôn | Simon | Councillor, Birmingham City Council. |
| Katherine | WARD | Andrew | Dismore | None. |
| Susan | WARD | Damian | Green | None. |
| Christine | WATSON | Tim | Yeo | None. |
| Peter | WATSON | Brian | Sedgemore | Occasional administrative and research work for the Labour Party. |
| Sarah | WATSON | Dominic | Grieve | None. |
| Christopher | WATT | Linda | Gilroy | None. |
| Michael | WATTS | Michael | Meacher | Self-employed management and training consultant (clients include Peugeot Cars and Taylor Woodrow Property Co). |
| Judith | WAXMAN | Stephen | Twigg | None. |
| Philippa | WAY | David | Cameron | None. |
| Helen | WEATHERSTON | William | Hague | None. |
| Rachael | WEBB | Austin | Mitchell | None. |
| Emma | WEGODA | Stephen | O'Brien | None. |
| Ian | WELLE-SKITT | Ian | Pearson | None. |
| Anthony | WELLS | William | Hague | None. |
| Bowen | WELLS | Cheryl | Gillan | Adviser on international development. |
| Anna | WERRIN | Charles | Kennedy | None. |
| Catherine | WEST | David | Lammy | None. |
| Margaret | WEST | Keith | Simpson | Secretary to Rt Hon The Earl Ferrers; Secretary to the Lord Shaw of Northstead. |
| Sheridan | WESTLAKE | Archie | Norman | Research Officer, Conservative Central Office. |
| Cleone | WESTWOOD | Win | Griffiths | Councillor, Bridgend Borough Council. |
| Clare | WHELAN | Peter | Luff | National Organiser, Tory Reform Group (a political pressure group); Councillor, London Borough of Lambeth. |
| Andrew | WHITBY-COLLINS | James | Gray | None. |
| Barry | WHITE | David | Trimble | None. |
| Ceri | WHITE | Jacqui | Smith | None. |
| Jennifer | WHYTE | Anthony | Steen | None. |
| Nathan | WIDDER | Roger | Casale | None. |
| James | WILD | David | Heathcoat-Amory | Research Officer, Conservative Central Office. |
| Christopher | WILKINS | Oliver | Heald | Research Officer, Conservative Central Office. |
| Andrew | WILLIAMS | Edward | Leigh | None. |
| Carol | WILLIAMS | David | Hanson | None. |
| Dafydd | WILLIAMS | David | Jamieson | None. |
| Karen | WILLIAMS | Simon | Thomas | None. |
| Lynda | WILLIAMS | Don | Touhig | None. |
| Matthew | WILLIAMS | David | Tredinnick | None. |
| Raymond | WILLIAMS | Betty | Williams | None. |
| Robin | WILLIAMS | Alan | Williams | None. |
| Sarah | WILLIAMS | Stephen | Timms | Benefit: Bursary/scholarship received from CARE (Christian Action Research and Education), a registered charity, as an intern on their graduate training scheme. |
| Simon | WILLIAMS | David | Drew | English Tutor, University College London. |
| Stephen | WILLIAMS | Liz | Blackman | Organiser/Agent for Arlene McCarthy, MEP. |
| Trefor | WILLIAMS | Ernie | Ross | Chief Executive, Westminster Foundation for Democracy (non-departmental public body sponsored by the FCO). |
| Vaughan | WILLIAMS | Dr Desmond | Turner | None. |
| David | WILLIAMSON | James | Gray | Benefit: Bursary/scholarship received from CARE (Christian Action Research and Education), a registered charity, as an intern on their graduate training scheme. |
| Charles | WILLIS | Phil | Woolas | Parliamentary Officer, Association of Town Centre Management. |
| Richard | WILLMETT | Sir Patrick | Cormack | None. |
| Eve | WILLMOTT | Judy | Mallaber | None. |
| Sam | WILLMOTT | Judy | Mallaber | None. |
| Simon | WILMOT | Norman | Baker | None. |
| Elizabeth | WILSON | Margaret | Beckett | None. |
| Lee | WILSON | Andrew | Bennett | None. |
| Peter | WILSON | Lindsay | Hoyle | None. |
| Peter | WILSON | Anne | McIntosh | None. |
| Vivienne | WINDLE | Kerry | Pollard | None. |
| Glenys | WINGATE | Sir Peter | Tapsell | None. |
| Robert | WINGFIELD | Bob | Laxton | Researcher/political liaison for Communications Workers Union (a trade union). |
| Annie | WINSBURY | Peter | Viggers | None. |
| Sarah | WINTERTON | Ann | Winterton | None. |
| Carole | WISE | Bob | Ainsworth | None. |
| Elizabeth | WITHERS | Neil | Gerrard | None. |
| Wilfred | WONG | Roger | Gale | Researcher and Parliamentary Officer, Jubilee Campaign (a human rights organisation). Frequent overseas visits are made on behalf of Jubilee Campaign and are paid for by that organisation. |
| Shona | WOODFINE | Phil | Woolas | None. |
| Brian | WOODS | Mike | Wood | None. |
| Karen | WOODS | Marion | Roe | None. |
| Paul | WOOLLEY | Jeffrey | Donaldson | Public Policy Officer, Christian Action Research and Education. |
| Joan | WORKER | Stephen | Twigg | None. |
| Carol | WRIGHT | Paddy | Tipping | None. |
| David | WRIGHT | Dr Nick | Palmer | Consultant geologist. |
| Eileen | WRIGHT | Patrick | McLoughlin | Secretary to Matthew Parris, Parliamentary Sketchwriter for The Times. |
| Helga | WRIGHT | David | Willetts | Secretary, Havant Business Forum. |
| Janet | WRIGHT | Dr Jenny | Tonge | None. |
| Simon | WRIGHT | Laura | Moffatt | None. |
| Victoria | WYATT | Margaret | Beckett | None. |
| Julie | WYMER | Jane | Griffiths | None. |
| Anna | YALLOP | Derek | Wyatt | None. |
| Edward | YOUNG | Nick | Gibb | None. |
| Matthew | YOUNG | Dr Alan | Whitehead | None. |
| Marilyn | ZOHA | Joan | Ryan | None. |
| Rosemary | ZONNEVELD | James | Arbuthnot | None. |
