UK Parliamentarians
- Lord BeithLiberal DemocratMember of the House of LordsPeer since 2015
- Torsten BellLabourMP for Swansea WestMP since 2024
- Lord BellamyConservativeMember of the House of LordsPeer since 2022
- Lord BellinghamConservativeMember of the House of LordsPeer since 2020
- Baroness BenjaminLiberal DemocratMember of the House of LordsPeer since 2010
- Hilary BennLabourMP for Leeds SouthMP since 1999
- Baroness Bennett of Manor CastleGreen PartyMember of the House of LordsPeer since 2019
- Alison BennettLiberal DemocratMP for Mid SussexMP since 2024
- Lord BenyonCrossbenchMember of the House of LordsPeer since 2021
- Baroness BergerLabourMember of the House of LordsPeer since 2025
- Lord Berkeley of KnightonCrossbenchMember of the House of LordsPeer since 2013
- Lord BerkeleyLabourMember of the House of LordsPeer since 2000
- Baroness BerridgeConservativeMember of the House of LordsPeer since 2011
- Siân BerryGreen PartyMP for Brighton PavilionMP since 2024
- Baroness BertinConservativeMember of the House of LordsPeer since 2016
- Lord BestCrossbenchMember of the House of LordsPeer since 2001
- Mr Clive BettsLabourMP for Sheffield South EastMP since 1992
- Lord BewCrossbenchMember of the House of LordsPeer since 2007
- Saqib BhattiConservativeMP for Meriden and Solihull EastMP since 2019
- Baroness BiLabourMember of the House of LordsPeer since 2026
- Lord BichardCrossbenchMember of the House of LordsPeer since 2010
- Lord BiggarConservativeMember of the House of LordsPeer since 2025
- 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 BirdCrossbenchMember of the House of LordsPeer since 2015
- Lord BirtCrossbenchMember of the House of LordsPeer since 2000
- Matt BishopLabourMP for Forest of DeanMP since 2024
- Lord Black of BrentwoodConservativeMember of the House of LordsPeer since 2010
- Baroness Black of StromeCrossbenchMember of the House of LordsPeer since 2021
- Bob BlackmanConservativeMP for Harrow EastMP since 2010
- Kirsty BlackmanScottish National PartyMP for Aberdeen NorthMP since 2015
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0