UK Parliamentarians
- Kevin McKennaLabourMP for Sittingbourne and SheppeyMP since 2024
- Catherine McKinnellLabourMP for Newcastle upon Tyne NorthMP since 2010
- Lord McLoughlinConservativeMember of the House of LordsPeer since 2020
- Jim McMahonLabourMP for Oldham West, Chadderton and RoytonMP since 2015
- Anna McMorrinLabourMP for Cardiff NorthMP since 2017
- James McMurdockIndependentMP for South Basildon and East ThurrockMP since 2024
- Frank McNallyLabourMP for Coatbridge and BellshillMP since 2024
- Lord McNallyLiberal DemocratMember of the House of LordsPeer since 1995
- Kirsty McNeillLabourMP for MidlothianMP since 2024
- Lord McNicol of West KilbrideLabourMember of the House of LordsPeer since 2018
- Esther McVeyConservativeMP for TattonMP since 2017
- Llinos MediPlaid CymruMP for Ynys MônMP since 2024
- Lord MendelsohnLabourMember of the House of LordsPeer since 2013
- Lord MendozaConservativeMember of the House of LordsPeer since 2020
- Baroness MerronLabourMember of the House of LordsPeer since 2021
- Baroness MeyerConservativeMember of the House of LordsPeer since 2018
- Anneliese MidgleyLabourMP for KnowsleyMP since 2024
- Ed MilibandLabourMP for Doncaster NorthMP since 2005
- Baroness Miller of Chilthorne DomerLiberal DemocratMember of the House of LordsPeer since 1998
- Calum MillerLiberal DemocratMP for Bicester and WoodstockMP since 2024
- John MilneLiberal DemocratMP for HorshamMP since 2024
- Ms Julie MinnsLabourMP for CarlisleMP since 2024
- Navendu MishraLabourMP for StockportMP since 2019
- Lord MitchellLabourMember of the House of LordsPeer since 2000
- Sir Andrew MitchellConservativeMP for Sutton ColdfieldMP since 2001
- Baroness MobarikConservativeMember of the House of LordsPeer since 2014
- Abtisam MohamedLabourMP for Sheffield CentralMP since 2024
- Iqbal MohamedIndependentMP for Dewsbury and BatleyMP since 2024
- Lord Mohammed of TinsleyLiberal DemocratMember of the House of LordsPeer since 2025
- Mr Gagan MohindraConservativeMP for South West HertfordshireMP since 2019
- Baroness Monckton of Dallington ForestConservativeMember of the House of LordsPeer since 2024
- Baroness MoneNon-affiliatedMember of the House of LordsPeer since 2015
Source: parliament.uk · 1,424 currently sitting · Open Government Licence v3.0