• Marshfield, Newport • Marshfield, South Gloucestershire • Marston Moretaine, Central Bedfordshire • Marston, Cheshire West and Chester • Marston, Wiltshire • Marstow, Herefordshire • Mathry, Pembrokeshire • Matlock, Derbyshire • Maulden, Central Bedfordshire • Melbourne, East Riding of Yorkshire • Meldon, Northumberland • Melling, Sefton • Meltham, Kirklees • Meppershall, Central Bedfordshire • Mere, Cheshire East • Mere, Wiltshire • Meriden, Solihull • Merthyr Mawr, Bridgend county borough • Merthyr Tydfil, Merthyr Tydfil County Borough • Mickleham, Surrey • Mickleton, County Durham • Middlesbrough, Middlesbrough • Mildenhall, Wiltshire • Milland, West Sussex • Millbrook, Central Bedfordshire • Millbrook, Cornwall • Millington, East Riding of Yorkshire • Milston, Wiltshire • Milton Bryan, Central Bedfordshire • Milton Keynes, Milton Keynes • Minety, Wiltshire • Mirfield, Kirklees • Mitchel Troy, Monmouthshire • Mobberley, Cheshire East • Moccas, Herefordshire • Mochdre, Conwy • Mochdre, Sir Powys • Moelfre, Anglesey • Mold, County of Flintshire • Mollington, Cheshire West and Chester • Monkton Farleigh, Wiltshire • Morcott, District of Rutland • Morden, Greater London • Moreton Jeffries, Herefordshire • Morley, City and Borough of Leeds • Morpeth, Northumberland • Morriston, City and County of Swansea • Moss, Doncaster • Mossley, Borough of Tameside • Motherwell, North Lanarkshire • Mottram St. Andrew, Cheshire East