UK Parliamentarians
- Lord BethellConservativeMember of the House of LordsPeer since 1967
- Mr Clive BettsLabourMP for Sheffield South EastMP since 1992
- David Gilroy BevanConservativeMP for Birmingham, YardleyMP since 1979
- Lord BewCrossbenchMember of the House of LordsPeer since 2007
- Lord BhatiaNon-affiliatedMember of the House of LordsPeer since 2001
- Lord BhattacharyyaLabourMember of the House of LordsPeer since 2004
- Saqib BhattiConservativeMP for Meriden and Solihull EastMP since 2019
- Baroness BiLabourMember of the House of LordsPeer since 2026
- Lord BicesterOtherMember of the House of LordsPeer since 1968
- Lord BichardCrossbenchMember of the House of LordsPeer since 2010
- Lord BiddulphConservativeMember of the House of LordsPeer since 1988
- Sydney BidwellLabourMP for Ealing, SouthallMP since 1966
- John BiffenConservativeMP for North ShropshireMP since 1961
- Lord BiffenConservativeMember of the House of LordsPeer since 1997
- Lord BiggarConservativeMember of the House of LordsPeer since 2025
- Sir John Biggs-DavisonConservativeMP for Epping ForestMP since 1955
- Lord BilimoriaCrossbenchMember of the House of LordsPeer since 2006
- Baroness BillinghamLabourMember of the House of LordsPeer since 2000
- Ms Polly BillingtonLabourMP for East ThanetMP since 2024
- Lord BilstonLabourMember of the House of LordsPeer since 2005
- The Lord Bingham of CornhillCrossbenchMember of the House of LordsPeer since 1996
- Andrew BinghamConservativeMP for High PeakMP since 2010
- Mr Brian BinleyConservativeMP for Northampton SouthMP since 2005
- Lord BirdCrossbenchMember of the House of LordsPeer since 2015
- Lord BirdwoodConservativeMember of the House of LordsPeer since 1962
- Baroness BirkLabourMember of the House of LordsPeer since 1967
- Lord BirkettCrossbenchMember of the House of LordsPeer since 1962
- The Lord Bishop of BirminghamBishopsMember of the House of LordsPeer since 1994
- The Lord Bishop of BirminghamBishopsMember of the House of LordsPeer since 2010
- The Lord Bishop of BirminghamBishopsMember of the House of LordsPeer since 1984
- Lord BirtCrossbenchMember of the House of LordsPeer since 2000
- Gordon BirtwistleLiberal DemocratMP for BurnleyMP since 2010
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0