UK Parliamentarians
- Lord BagotConservativeMember of the House of LordsPeer since 1979
- Lord BagriConservativeMember of the House of LordsPeer since 1997
- Lord Bailey of PaddingtonConservativeMember of the House of LordsPeer since 2023
- Mr Adrian BaileyLabourMP for West Bromwich WestMP since 2000
- Mr Calvin BaileyLabourMP for Leyton and WansteadMP since 2024
- Olivia BaileyLabourMP for Reading West and Mid BerkshireMP since 2024
- Shaun BaileyConservativeMP for West Bromwich WestMP since 2019
- Siobhan BaillieConservativeMP for StroudMP since 2019
- Lord BaillieuNon-affiliatedMember of the House of LordsPeer since 1973
- Mr William BainLabourMP for Glasgow North EastMP since 2009
- David BainesLabourMP for St Helens NorthMP since 2024
- Vera BairdLabourMP for RedcarMP since 2001
- Lord Baker of DorkingConservativeMember of the House of LordsPeer since 1997
- Alex BakerLabourMP for AldershotMP since 2024
- Duncan BakerConservativeMP for North NorfolkMP since 2019
- Mr Steve BakerConservativeMP for WycombeMP since 2010
- Norman BakerLiberal DemocratMP for LewesMP since 1997
- Richard BakerLabourMP for Glenrothes and Mid FifeMP since 2024
- Sir Nicholas BakerConservativeMP for North DorsetMP since 1979
- Baroness Bakewell of Hardington MandevilleLiberal DemocratMember of the House of LordsPeer since 2013
- Baroness BakewellLabourMember of the House of LordsPeer since 2011
- Sir Tony BaldryConservativeMP for BanburyMP since 1983
- Earl Baldwin of BewdleyCrossbenchMember of the House of LordsPeer since 1977
- Dame Harriett BaldwinConservativeMP for West WorcestershireMP since 2010
- Lord BalfeConservativeMember of the House of LordsPeer since 2013
- Lord Balfour of BurleighCrossbenchMember of the House of LordsPeer since 1967
- Lord Balfour of InchryeCrossbenchMember of the House of LordsPeer since 1988
- Lord Balfour of InchryeNot knownMember of the House of LordsPeer since 1945
- Earl of BalfourConservativeMember of the House of LordsPeer since 1968
- Jackie BallardLiberal DemocratMP for TauntonMP since 1997
- Alex BallingerLabourMP for HalesowenMP since 2024
- Ed BallsLabourMP for Morley and OutwoodMP since 2005
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0