Regions of United Kingdom
- Meerbrook
- Meenard Mountain
- Medwin Water
- River Medway
- Medstead and Four Marks Station
- Medstead
- Medmenham
- River Medlock
- River Medina
- Medbourne
- Meavy
- Meavaig River
- Loch Meavaig
- Meaux
- Measham
- Meare
- Meanwood Beck
- Meanwood
- Loch Mealt
- Mealsgate
- Meall Mòr
- Mealisval
- Mealfuarvonie
- Mealasta Island
- Creag Meagaidh
- Meadowtown
- Loch Meadie
- Loch Meadie
- Loch Meadie
- Meall Meadhonach
- Gleann Meadhonach
- Gleann Meadail
- Meachard Rock
- Ben Meabost
- McKinneys Bank
- McKenzie Rock
- McCammon Rocks
- McAuley’s Head
- McArthurs Head
- Glen Mazeran
- Maze Hill Railway Station
- Holm of Maywick
- May Wick
- Mayobridge
- Mayland
- May Hill
- Mayfield
- Mayfield
- Mayfair
- Mayen House
- May Craig
- May Craig
- Maybole
- Mayar
- Water of May
- Isle of May
- Maxwelton
- Maxwelltown
- Maxwell Bank
- Maxton
- Maxstoke
- Mawnan
- Mawgan Porth
- Mawgan
- Mawdesley
- Afon Mawddach
- Mawbray
- Mautby
- Maunby
- River Maun
- Maulds Meaburn
- Maulden
- Maud
- Mauchline
- Mattishall
- Mattersey
- Matta Taing
- Matson
- Matlock Bank
- Matlock
- Mathry
- Mathon
- Mathern
- Lochan Mathair Eite
- Matfield
- Matfen
- Matching
- Màs Sgeir
- Glen Massan
- River Mashie
- Masham
- Masewell Rock
- Masbury Station
- Maryton
- Marytavy
- Marystow
- Maryport
- Marylebone Railway Station
- Marykirk
- Maryhill
- Mary Gray
- Maryculter
- Port Mary
- Marwood
- Marwick Head
- Mar Wick
- Martyr Worthy
- Martray House
- Marton in the Forest
- Marton
- Marton
- Marton
- Marton
- Marton
- Marton
- Marton
- Martock
- Martnaham Loch
- Martley
- Martlesham Heath
- Martlesham
- Martin Hussingtree
- Martinhoe
- Isle Martin
- Martin
- Martin
- Martin
- Martin
- Martham
- Marthall
- Marsworth
- Marstow
- Marston Moretaine
- Marston Montgomery
- Marston Meysey
- Marston Magna
- Marston Green
- Marston
- Marston
- Marston
- Marske Beck
- Marske-by-the-Sea
- Marske
- Marshwood
- Marsh Mills
- Marshland
- Marsh Gibbon
- Marshfield
- Marshfield
- Marsh Chapel
- Marshbrook
- Marsh Baldon
- Marshaw
- Marsham
- Marshall Meadows
- Marsett
- Marsden Rock
- Marsden Point
- Marsden
- Marsden
- Marsco
- Marros
- Marrick
- Marr Burn
- Marra Flaeshins
- Marr
- Marple
- Marnoch
- Marnhull
- Marlpool
- Marlow
- Marloes
- Mar Lodge
- Marlingford
- Marlie Loch
- Marlesford
- Marldon
- Marlborough
- Markyate
- Marks Tey
- Markshall
- Marks Hall
- Marksbury
- Markinch
- Markie Water
- Glen Markie
- Markfield
- Market Weston
- Market Weighton
- Market Warsop
- Market Rasen
- Market Overton
- Market Lavington
- Market Hill
- Market Harborough
- Market Drayton
- Market Deeping
- Market Bosworth
- Mark Cross
- Water of Mark