UK Parliamentarians
- Lord Anderson of SwanseaLabourMember of the House of LordsPeer since 2005
- Callum AndersonLabourMP for Buckingham and BletchleyMP since 2024
- Fleur AndersonLabourMP for PutneyMP since 2019
- Lee AndersonReform UKMP for AshfieldMP since 2019
- Stuart AndersonConservativeMP for South ShropshireMP since 2019
- Stuart AndrewConservativeMP for DaventryMP since 2010
- Baroness AndrewsLabourMember of the House of LordsPeer since 2000
- Baroness Anelay of St JohnsConservativeMember of the House of LordsPeer since 1996
- Tonia AntoniazziLabourMP for GowerMP since 2017
- Baroness AntrobusLabourMember of the House of LordsPeer since 2026
- Steff AquaroneLiberal DemocratMP for North NorfolkMP since 2024
- Lord Arbuthnot of EdromConservativeMember of the House of LordsPeer since 2015
- Edward ArgarConservativeMP for Melton and SystonMP since 2015
- Baroness Armstrong of Hill TopLabourMember of the House of LordsPeer since 2010
- Dr Scott ArthurLabourMP for Edinburgh South WestMP since 2024
- Jess AsatoLabourMP for LowestoftMP since 2024
- Baroness Ashton of UphollandLabourMember of the House of LordsPeer since 1999
- James AsserLabourMP for West Ham and BecktonMP since 2024
- Jas AthwalLabourMP for Ilford SouthMP since 2024
- Victoria AtkinsConservativeMP for Louth and HorncastleMP since 2015
- Catherine AtkinsonLabourMP for Derby NorthMP since 2024
- Lewis AtkinsonLabourMP for Sunderland CentralMP since 2024
- Lord Austin of DudleyNon-affiliatedMember of the House of LordsPeer since 2020
- Josh BabarindeLiberal DemocratMP for EastbourneMP since 2024
- Lord BabuduLabourMember of the House of LordsPeer since 2026
- Lord BachLabourMember of the House of LordsPeer since 1998
- Gareth BaconConservativeMP for OrpingtonMP since 2019
- Mrs Kemi BadenochConservativeMP for North West EssexMP since 2017
- Lord Bailey of PaddingtonConservativeMember of the House of LordsPeer since 2023
- Mr Calvin BaileyLabourMP for Leyton and WansteadMP since 2024
- Olivia BaileyLabourMP for Reading West and Mid BerkshireMP since 2024
- David BainesLabourMP for St Helens NorthMP since 2024
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0