UK Parliamentarians
- Lord BleaseLabourMember of the House of LordsPeer since 1978
- Viscount BledisloeCrossbenchMember of the House of LordsPeer since 1979
- Lord BlencathraConservativeMember of the House of LordsPeer since 2011
- Tom BlenkinsopLabourMP for Middlesbrough South and East ClevelandMP since 2010
- Mr Bob BlizzardLabourMP for WaveneyMP since 1997
- Paul BlomfieldLabourMP for Sheffield CentralMP since 2010
- Baroness BloodLabourMember of the House of LordsPeer since 1999
- Baroness Bloomfield of Hinton WaldristConservativeMember of the House of LordsPeer since 2016
- Chris BlooreLabourMP for RedditchMP since 2024
- Baroness BlowerLabourMember of the House of LordsPeer since 2019
- Mrs Elsie BlundellLabourMP for Heywood and Middleton NorthMP since 2024
- Lord BlunkettLabourMember of the House of LordsPeer since 2015
- Crispin BluntIndependentMP for ReigateMP since 1997
- Lord Blyth of RowingtonConservativeMember of the House of LordsPeer since 1995
- Lord BlythCrossbenchMember of the House of LordsPeer since 1977
- Lord BlytonLabourMember of the House of LordsPeer since 1964
- Lord BoardmanConservativeMember of the House of LordsPeer since 1980
- Lord BoatengLabourMember of the House of LordsPeer since 2010
- Sir Richard BodyConservativeMP for Boston and SkegnessMP since 1966
- Nick BolesIndependentMP for Grantham and StamfordMP since 2010
- Viscount Bolingbroke and St. JohnNon-affiliatedMember of the House of LordsPeer since 1974
- Lord BoltonOtherMember of the House of LordsPeer since 1963
- Kevin BonaviaLabourMP for StevenageMP since 2024
- Mr Peter BoneIndependentMP for WellingboroughMP since 2005
- Baroness Bonham-Carter of YarnburyLiberal DemocratMember of the House of LordsPeer since 2004
- Lord Bonham-CarterLiberal DemocratMember of the House of LordsPeer since 1986
- Steven BonnarScottish National PartyMP for Coatbridge, Chryston and BellshillMP since 2019
- Sir Nicholas BonsorConservativeMP for UpminsterMP since 1979
- Sarah BoolConservativeMP for South NorthamptonshireMP since 2024
- Albert BoothLabourMP for Barrow-in-FurnessMP since 1966
- Hartley BoothConservativeMP for FinchleyMP since 1992
- Lord BoothConservativeMember of the House of LordsPeer since 2024
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0