| Bacon, Richard Norfolk South | C |
| Bagshawe, Louise Corby | C |
| Bailey, Adrian West Bromwich West | Lab |
| Bain, Willie Glasgow North East | Lab |
| Baker, Norman Lewes | LD |
| Baker, Steven Wycombe | C |
| Baldry, Tony Banbury | C |
| Baldwin, Harriett Worcestershire West | C |
| Balls, Ed Morley & Outwood | Lab |
| Banks, Gordon Ochil & Perthshire South | Lab |
| Barclay, Stephen Cambridgeshire North East | C |
| Barker, Greg Bexhill & Battle | C |
| Baron, John Basildon & Billericay | C |
| Barron, Kevin Rother Valley | Lab |
| Barwell, Gavin Croydon Central | C |
| Bayley, Hugh York Central | Lab |
| Bebb, Guto Aberconwy | C |
| Beckett, Margaret Derby South | Lab |
| Begg, Anne Aberdeen South | Lab |
| Beith, Sir Alan Berwick-upon-Tweed | LD |
| Bell, Sir Stuart Middlesbrough | Lab |
| Bellingham, Henry Norfolk North West | C |
| Benn, Hilary Leeds Central | Lab |
| Benton, Joe Bootle | Lab |
| Benyon, Richard Newbury | C |
| Bercow, John Buckingham | Speaker |
| Beresford, Sir Paul Mole Valley | C |
| Berger, Luciana Liverpool Wavertree | Lab |
| Berry, Jake Rossendale & Darwen | C |
| Betts, Clive Sheffield South East | Lab |
| Bingham, Andrew High Peak | C |
| Binley, Brian Northampton South | C |
| Birtwistle, Gordon Burnley | LD |
| Blackman, Bob Harrow East | C |
| Blackman-Woods, Roberta Durham, City of | Lab |
| Blackwood, Nicola Oxford West & Abingdon | C |
| Blears, Hazel Salford & Eccles | Lab |
| Blenkinsop, Tom Middlesbrough South | |
| & Cleveland East | Lab |
| Blomfield, Paul Sheffield Central | Lab |
| Blunkett, David Sheffield Brightside & Hillsborough | Lab |
| Blunt, Crispin Reigate | C |
| Boles, Nicholas Grantham & Stamford | C |
| Bone, Peter Wellingborough | C |
| Bottomley, Peter Worthing West | C |
| Bradley, Karen Staffordshire Moorlands | C |
| Bradshaw, Ben Exeter | Lab |
| Brady, Graham Altrincham & Sale West | C |
| Brake, Tom Carshalton & Wallington | LD |
| Bray, Angie Ealing Central & Acton | C |
| Brazier, Julian Canterbury | C |
| Brennan, Kevin Cardiff West | Lab |
| Bridgen, Andrew Leicestershire North West | C |
| Brine, Steve Winchester | C |
| Brokenshire, James Old Bexley & Sidcup | C |
| Brooke, Annette Dorset Mid & Poole North | LD |
| Brown, Russell Dumfries & Galloway | Lab |
| Brown, Gordon Kirkcaldy & Cowdenbeath | Lab |
| Brown, Nicholas Newcastle upon Tyne East | Lab |
| Brown, Lyn West Ham | Lab |
| Browne, Jeremy Taunton Deane | LD |
| Bruce, Fiona Congleton | C |
| Bruce, Malcolm Gordon | LD |
| Bryant, Chris Rhondda | Lab |
| Buck, Karen Westminster North | Lab |
| Buckland, Robert Swindon South | C |
| Burden, Richard Birmingham Northfield | Lab |
| Burley, Aidan Cannock Chase | C |
| Burnham, Andy Leigh | Lab |
| Burns, Conor Bournemouth West | C |
| Burns, Simon Chelmsford | C |
| Burrowes, David Enfield Southgate | C |
| Burstow, Paul Sutton & Cheam | LD |
| Burt, Alistair Bedfordshire North East | C |
| Burt, Lorely Solihull | LD |
| Byles, Dan Warwickshire North | C |
| Byrne, Liam Birmingham Hodge Hill | Lab |
