| Walker, Charles Broxbourne | C |
| Walker, Robin Worcester | C |
| Wallace, Ben Wyre & Preston North | C |
| Walley, Joan Stoke-on-Trent North | Lab |
| Walter, Bob Dorset North | C |
| Ward, David Bradford East | LD |
| Watkinson, Angela Hornchurch & Upminster | C |
| Watson, Tom West Bromwich East | Lab |
| Watts, Dave St Helens North | Lab |
| Weatherley, Mike Hove | C |
| Webb, Steve Thornbury & Yate | LD |
| Weir, Mike Angus | SNP |
| Wharton, James Stockton South | C |
| Wheeler, Heather Derbyshire South | C |
| White, Chris Warwick & Leamington | C |
| Whiteford, Eilidh Banff & Buchan | SNP |
| Whitehead, Alan Southampton Test | Lab |
| Whittaker, Craig Calder Valley | C |
| Whittingdale, John Maldon | C |
| Wicks, Malcolm Croydon North | Lab |
| Wiggin, Bill Herefordshire North | C |
| Willetts, David Havant | C |
| Williams, Hywel Arfon | PC |
| Williams, Roger Brecon & Radnorshire | LD |
| Williams, Stephen Bristol West | LD |
| Williams, Mark Ceredigion | LD |
| Williamson, Chris Derby North | Lab |
| Williamson, Gavin Staffordshire South | C |
| Willott, Jenny Cardiff Central | LD |
| Wilson, Sammy Antrim East | DUP |
| Wilson, Rob Reading East | C |
| Wilson, Phil Sedgefield | Lab |
| Winnick, David Walsall North | Lab |
| Winterton, Rosie Doncaster Central | Lab |
| Wishart, Pete Perth & Perthshire North | SNP |
| Wollaston, Dr Sarah Totnes | C |
| Wood, Mike Batley & Spen | Lab |
| Woodcock, John Barrow & Furness | Lab |
| Woodward, Shaun St Helens South & Whiston | Lab |
| Woolas, Phil Oldham East & Saddleworth | Lab |
| Wright, Iain Hartlepool | Lab |
| Wright, Jeremy Kenilworth & Southam | C |
| Wright, Simon Norwich South | LD |
| Wright, David Telford | Lab |
