UK Parliamentarians
- Lord Black of BrentwoodConservativeMember of the House of LordsPeer since 2010
- Baroness Black of StromeCrossbenchMember of the House of LordsPeer since 2021
- Baroness BlackstoneLabourMember of the House of LordsPeer since 1987
- Lord BlackwaterConservativeMember of the House of LordsPeer since 2026
- Lord BlackwellConservativeMember of the House of LordsPeer since 1997
- Baroness Blackwood of North OxfordConservativeMember of the House of LordsPeer since 2019
- Baroness Blake of LeedsLabourMember of the House of LordsPeer since 2021
- Lord BlencathraConservativeMember of the House of LordsPeer since 2011
- Baroness Bloomfield of Hinton WaldristConservativeMember of the House of LordsPeer since 2016
- Baroness BlowerLabourMember of the House of LordsPeer since 2019
- Lord BlunkettLabourMember of the House of LordsPeer since 2015
- Lord BoatengLabourMember of the House of LordsPeer since 2010
- Baroness Bonham-Carter of YarnburyLiberal DemocratMember of the House of LordsPeer since 2004
- Lord BoothConservativeMember of the House of LordsPeer since 2024
- Lord Booth-SmithConservativeMember of the House of LordsPeer since 2024
- Lord BothamCrossbenchMember of the House of LordsPeer since 2020
- Baroness Bottomley of NettlestoneConservativeMember of the House of LordsPeer since 2005
- Lord Bourne of AberystwythConservativeMember of the House of LordsPeer since 2013
- Baroness BoustedLabourMember of the House of LordsPeer since 2025
- Baroness Bowles of BerkhamstedLiberal DemocratMember of the House of LordsPeer since 2015
- Lord BownessCrossbenchMember of the House of LordsPeer since 1996
- Baroness BoycottCrossbenchMember of the House of LordsPeer since 2018
- Lord Boyd of DuncansbyCrossbenchMember of the House of LordsPeer since 2006
- Lord BradleyLabourMember of the House of LordsPeer since 2006
- Lord BradshawLiberal DemocratMember of the House of LordsPeer since 1999
- Lord Brady of AltrinchamConservativeMember of the House of LordsPeer since 2024
- Baroness BradyConservativeMember of the House of LordsPeer since 2014
- Baroness Bray of ColnConservativeMember of the House of LordsPeer since 2022
- Lord Brennan of CantonLabourMember of the House of LordsPeer since 2025
- Lord BrennanNon-affiliatedMember of the House of LordsPeer since 2000
- Lord Bridges of HeadleyConservativeMember of the House of LordsPeer since 2015
- Baroness BrintonLiberal DemocratMember of the House of LordsPeer since 2011
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0