Seznam poslanců ze Spojeného království: M - List of United Kingdom MPs: M - Wikipedia
Následuje neúplný seznam minulých i současných členů parlamentu (MP) Spojeného království, jejichž příjmení začínají M. Data v závorkách jsou období, za která byli poslanci.
- John McAllion
- Tommy McAvoy
- Steve McCabe
- Christine McCafferty
- Ian McCartney
- Siobhain McDonagh
- Alan Mak
- Calum MacDonald
- Malcolm MacDonald
- Ramsay MacDonald
- John McDonnell
- John MacDougall
- John McFall
- John MacGregor
- Anne McGuire
- Shona McIsaac
- Frederick Coleridge Mackarness
- Andrew MacKay
- Ann McKechinová
- Rosemary McKenna
- Halford Mackinder
- Andrew Mackinlay
- John Scott Maclay, 1. vikomt Muirshiel
- David Maclean
- Donald Maclean
- Fitzroy Maclean
- Neil Maclean
- Henry McLeish
- Robert Maclennan, baron Maclennan z Rogartu
- Iain Macleod
- Frank McManus
- Gordon McMaster
- Maurice Macmillan
- Kevin McNamara
- Angus MacNeil
- Tony McNulty
- Denis MacShane
- Fiona Mactaggart
- Tony McWalter
- John McWilliam
- Diana Maddock
- David Madel
- Bryan Magee
- Ken Maginnis
- Frank Maguire
- Khalid Mahmood
- Alice Mahon
- Anne Main
- John Major
- Ian Malcolm
- Shahid Malik
- Humfrey Malins
- Judy Mallaber
- Seamus Mallon
- Cecil L'Estrange Malone
- John Mann
- Leah Manning
- Reginald Manningham-Buller, 1. vikomt Dilhorne
- John Maples
- John Marek
- David Margesson, 1. vikomt Margesson
- Ernest Marples
- Rob Marris
- Gordon Marsden
- Paul Marsden
- Arthur Harold Marshall (1910–1918), (1922–1923)
- David Marshall
- Jim Marshall
- Bob Marshall-Andrews
- Michael Martin
- Eric Martlew
- Glyn Mason, 2. baron Blackford
- Roy Mason
- Charles Masterman
- Michael Mates
- Matthew Decker
- Angus Maude
- Francis Maude
- Reginald Maudling
- Sir Thomas Mauleverer, 1. Baronet
- Brian Mawhinney
- James Maxton
- John Maxton, baron Maxton
- David Maxwell Fyfe, 1. hrabě z Kilmuir
- Robert Maxwell
- Theresa May (1997 – dosud)
- Christopher Mayhew
- Patrick Mayhew
- Joan Maynard
- Kerry McCarthy
- Sarah McCarthy-Fry
- Robert McCartney
- William McCrea
- Alasdair McDonnell
- Pat McFadden
- Jim McGovern
- Eddie McGrady
- Martin McGuinness
- Anne McIntosh
- Reginald McKenna
- Patrick McLoughlin
- Michael McNair-Wilson
- Hector McNeil
- Ronald McNeill, 1. baron Cushendun
- Thomas McNally, baron McNally
- Esther McVey
- Michael Meacher
- Alan Meale
- David Mellor
- Patrick Mercer
- Piers Merchant
- Gillian Merron
- Philip Metcalfe (1784–1802)
- Sir Anthony Meyer, 3. baronet (1964–1966), (1970–1992)
- Alun Michael (1987–2012)
- Bill Michie
- Ray Michie
- Ian Mikardo
- Alan Milburn
- Charles William Miles (1882–1885)
- John William Miles (1868)
- Philip John Miles (1820–1826), (1829–1832), (1835–1837)
- Sir Philip Miles, 2. Baronet (1878–1885)
- Philip William Skinner Miles (1837–1852)
- Sir William Miles, 1. Baronet (1818–1820), (1830–1832), (1834–1865)
- David Miliband (2001 – dosud)
- Ed Miliband (2005 – dosud)
- Bruce Millan
- Andrew Miller
- Maria Miller
- Stephen Milligan
- Ernest Millington
- James Milner, první baron Milner z Leedsu
- Anne Milton
- Andrew Mitchell
- Austin Mitchell
- William Mitchell-Thomson, 1. baron Selsdon
- Anne Moffat
- Laura Moffatt
- Chris Mole
- James Molyneaux
- Walter Monckton, 1. vikomt Monckton z Brenchley
- Hector Monro, baron Monro z Langholmu, (1964–1997)
- Edwin Samuel Montagu
- Samuel Montagu, první baron Swaythling
- Fergus Montgomery
- Madeleine Moon
- Lewis Moonie
- John Moore, baron Moore z Lower Marsh
- Michael Moore
- Newton Moore
- John Cuthbert Moore-Brabazon, 1. baron Brabazon z Tary
- Margaret Moran
- Jessica Morden
- E. D. Morel
- Alasdair Morgan
- Julie Morgan
- Rhodri Morgan
- William Morice
- Elliot Morley
- John Morley, 1. vikomt Morley z Blackburnu
- Charles Morris
- Estelle Morris
- John Morris
- Michael Morris, baron Naseby
- Herbert Morrison
- William Morrison, 1. vikomt Dunrossil
- Oswald Mosley
- Malcolm Moss
- William Arthur Mount, 1. Baronet
- William George Mount
- Kali Mountford
- Mo Mowlam
- George Mudie
- H. T. Muggeridge
- Greg Mulholland
- Frederick Mulley
- Chris Mullin
- David Mundell
- Meg Munn
- Tessa Munt
- Conor Murphy
- Denis Murphy
- Jim Murphy
- Paul Murphy
- Andrew Murrison