| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Marazion | city | Cornwall | United Kingdom | 50.13 | -5.47 | 45 | 12559 |
| Marbury | city | Cheshire East | United Kingdom | 53.00 | -2.65 | 259 | 7883 |
| Marc Innis | city | Fife | United Kingdom | 56.20 | -3.13 | 144 | 28310 |
| March | city | Cambridgeshire | United Kingdom | 52.55 | 0.08 | 32 | 8195 |
| March i Cambridgeshire | city | Cambridgeshire | United Kingdom | 52.55 | 0.08 | 32 | 8195 |
| Marcham | city | Oxfordshire | United Kingdom | 51.65 | -1.33 | 203 | 28185 |
| Marchamby | city | Shropshire | United Kingdom | 52.87 | -2.60 | 370 | 6407 |
| Marchamley | city | Shropshire | United Kingdom | 52.87 | -2.60 | 370 | 6407 |
| Marchington | city | Staffordshire | United Kingdom | 52.87 | -1.80 | 249 | 10840 |
| Marchington Woodlands | city | Staffordshire | United Kingdom | 52.85 | -1.83 | 360 | 12925 |
| Marchwiail | city | Wrexham | United Kingdom | 53.02 | -2.95 | 177 | 24214 |
| Marchwiel | city | Wrexham | United Kingdom | 53.02 | -2.95 | 177 | 24214 |
| Marchwood | city | Hampshire | United Kingdom | 50.87 | -1.45 | 9 | 74517 |
| Marcross | city | Bro Morgannwg | United Kingdom | 51.41 | -3.55 | 9 | 7434 |
| Mardale | city | Cumbria | United Kingdom | 54.48 | -2.82 | 1669 | 2131 |
| Marden | city | Kent | United Kingdom | 51.17 | 0.50 | 127 | 12863 |
| Mardy | city | Rhondda Cynon Taf | United Kingdom | 51.68 | -3.49 | 1026 | 47082 |
| Marefield | city | Leicestershire | United Kingdom | 52.65 | -0.90 | 830 | 3990 |
| Mareham | city | Lincolnshire | United Kingdom | 53.18 | -0.07 | 242 | 3427 |
| Mareham | city | Lincolnshire | United Kingdom | 53.13 | -0.08 | 141 | 3427 |
| Mareham le Fen | city | Lincolnshire | United Kingdom | 53.13 | -0.08 | 141 | 3427 |
| Mareham on the Hill | city | Lincolnshire | United Kingdom | 53.18 | -0.07 | 242 | 3427 |
| Maresfield | city | East Sussex | United Kingdom | 50.98 | 0.08 | 137 | 5674 |
| Marfleet | city | City of Kingston upon Hull | United Kingdom | 53.73 | -0.27 | 0 | 91646 |
| Marg Innis | city | Fife | United Kingdom | 56.20 | -3.13 | 144 | 28310 |
| Margam | city | Neath Port Talbot | United Kingdom | 51.56 | -3.74 | 127 | 22917 |
| Margaret Roding | city | Essex | United Kingdom | 51.78 | 0.32 | 232 | 5607 |
| Margaretting | city | Essex | United Kingdom | 51.68 | 0.42 | 206 | 50491 |
| Margaretting Street | city | Essex | United Kingdom | 51.68 | 0.42 | 206 | 50491 |
| Margate | city | Kent | United Kingdom | 51.38 | 1.42 | 3 | 47714 |
| Marghas Yow | city | Cornwall | United Kingdom | 50.13 | -5.47 | 45 | 12559 |
| Marghasyow | city | Cornwall | United Kingdom | 50.13 | -5.47 | 45 | 12559 |
| Marham | city | Norfolk | United Kingdom | 52.65 | 0.55 | 111 | 5310 |
| Marhamchurch | city | Cornwall | United Kingdom | 50.80 | -4.52 | 187 | 4331 |
| Marhasyow | city | Cornwall | United Kingdom | 50.13 | -5.47 | 45 | 12559 |
| Marholm | city | Peterborough | United Kingdom | 52.60 | -0.30 | 101 | 49514 |
| Mariansleigh | city | Devon | United Kingdom | 50.98 | -3.78 | 830 | 4023 |
| Mark | city | Dumfries and Galloway | United Kingdom | 54.92 | -4.33 | 830 | 1341 |
| Mark | city | Somerset | United Kingdom | 51.23 | -2.89 | 39 | 10836 |
| Mark Cross | city | East Sussex | United Kingdom | 51.05 | 0.25 | 249 | 6599 |
| Market Bosworth | city | Leicestershire | United Kingdom | 52.62 | -1.40 | 354 | 8480 |
| Market Brough | city | Cumbria | United Kingdom | 54.52 | -2.30 | 853 | 1788 |
| Market Deeping | city | Lincolnshire | United Kingdom | 52.67 | -0.30 | 95 | 32924 |
| Market Drayton | city | Staffordshire | United Kingdom | 52.90 | -2.47 | 341 | 10624 |
| Market Harborough | city | Leicestershire | United Kingdom | 52.47 | -0.92 | 308 | 5983 |
| Market Hill | city | Armagh, Banbridge and Craigavon | United Kingdom | 54.30 | -6.52 | 291 | 2707 |
| Market Jew | city | Cornwall | United Kingdom | 50.13 | -5.47 | 45 | 12559 |
| Market Lavington | city | Wiltshire | United Kingdom | 51.28 | -1.98 | 830 | 6260 |
| Market Overton | city | Rutland | United Kingdom | 52.72 | -0.68 | 249 | 5503 |
| Market Rasen | city | Lincolnshire | United Kingdom | 53.38 | -0.33 | 160 | 3278 |
| Market Warsop | city | Nottinghamshire | United Kingdom | 53.20 | -1.15 | 252 | 55158 |
| Market Weighton | city | East Riding of Yorkshire | United Kingdom | 53.87 | -0.67 | 242 | 2235 |
| Market Weston | city | Suffolk | United Kingdom | 52.37 | 0.92 | 131 | 9301 |
| Markfield | city | Leicestershire | United Kingdom | 52.67 | -1.28 | 830 | 35575 |
| Markham | city | Nottinghamshire | United Kingdom | 53.25 | -0.88 | 200 | 5755 |
| Markhamchurch | city | Cornwall | United Kingdom | 50.80 | -4.52 | 187 | 4331 |
| Markinch | city | Fife | United Kingdom | 56.20 | -3.13 | 144 | 28310 |
| Marks Tey | city | Essex | United Kingdom | 51.87 | 0.78 | 85 | 30963 |
| Marksbury | city | Bath and North East Somerset | United Kingdom | 51.36 | -2.48 | 396 | 25788 |
| Markshall | city | Essex | United Kingdom | 51.90 | 0.68 | 121 | 13506 |
| Markyate | city | Hertfordshire | United Kingdom | 51.83 | -0.45 | 830 | 78564 |
| Markyatestreet | city | Hertfordshire | United Kingdom | 51.83 | -0.45 | 830 | 78564 |
| Marlborough | city | Wiltshire | United Kingdom | 51.42 | -1.72 | 830 | 6109 |
| Marlborough i Wiltshire | city | Wiltshire | United Kingdom | 51.42 | -1.72 | 830 | 6109 |
| Marldon | city | Devon | United Kingdom | 50.47 | -3.60 | 305 | 47641 |
| Marlesford | city | Suffolk | United Kingdom | 52.17 | 1.40 | 49 | 4768 |
| Marlingford | city | Norfolk | United Kingdom | 52.63 | 1.15 | 52 | 20856 |
| Marloes | city | Sir Benfro | United Kingdom | 51.73 | -5.20 | 3 | 2037 |
| Marlow | city | Buckinghamshire | United Kingdom | 51.57 | -0.77 | 229 | 80222 |
| Marlpool | city | Derbyshire | United Kingdom | 53.00 | -1.33 | 239 | 75610 |
| Marnhull | city | Dorset | United Kingdom | 50.97 | -2.32 | 200 | 8296 |
| Marnoch | city | Aberdeenshire | United Kingdom | 57.53 | -2.67 | 232 | 1250 |
| Marple | city | Stockport | United Kingdom | 53.40 | -2.07 | 830 | 157166 |
| Marr | city | Doncaster | United Kingdom | 53.53 | -1.23 | 246 | 49547 |
| Marras | city | Carmarthenshire | United Kingdom | 51.75 | -4.60 | 137 | 470 |
| Marrick | city | North Yorkshire | United Kingdom | 54.38 | -1.88 | 830 | 2384 |
| Marros | city | Carmarthenshire | United Kingdom | 51.75 | -4.60 | 137 | 470 |
| Marsden | city | South Tyneside | United Kingdom | 54.97 | -1.37 | 3 | 71985 |
| Marsden | city | Kirklees | United Kingdom | 53.60 | -1.92 | 1141 | 31630 |
| Marsett | city | North Yorkshire | United Kingdom | 54.27 | -2.15 | 1069 | 2145 |
| Marsh Baldon | city | Oxfordshire | United Kingdom | 51.68 | -1.18 | 236 | 33502 |
| Marsh Chapel | city | Lincolnshire | United Kingdom | 53.47 | 0.05 | 19 | 7599 |
| Marsh Gibbon | city | Buckinghamshire | United Kingdom | 51.90 | -1.05 | 246 | 10334 |
| Marshall Meadows | city | Northumberland | United Kingdom | 55.80 | -2.03 | 68 | 16800 |
| Marsham | city | Norfolk | United Kingdom | 52.77 | 1.25 | 19 | 9378 |
| Marshaw | city | Lancashire | United Kingdom | 53.97 | -2.63 | 1033 | 8216 |
| Marshbrook | city | Shropshire | United Kingdom | 52.50 | -2.83 | 830 | 3141 |
| Marshchapel | city | Lincolnshire | United Kingdom | 53.47 | 0.05 | 19 | 7599 |
| Marshfield | city | Newport | United Kingdom | 51.53 | -3.07 | 72 | 71142 |
| Marshfield | city | South Gloucestershire | United Kingdom | 51.46 | -2.32 | 830 | 20411 |
| Marshfields | city | Newport | United Kingdom | 51.53 | -3.07 | 72 | 71142 |
| Marshwood | city | Dorset | United Kingdom | 50.78 | -2.87 | 206 | 3911 |
| Marske | city | Redcar and Cleveland | United Kingdom | 54.59 | -1.02 | 108 | 27683 |
| Marske | city | North Yorkshire | United Kingdom | 54.38 | -1.83 | 830 | 2384 |
| Marske by the Sea | city | Redcar and Cleveland | United Kingdom | 54.59 | -1.02 | 108 | 27683 |
| Marske-by-the-Sea | city | Redcar and Cleveland | United Kingdom | 54.59 | -1.02 | 108 | 27683 |
| Marston | city | Cheshire West and Chester | United Kingdom | 53.27 | -2.50 | 39 | 31007 |
| Marston | city | Lincolnshire | United Kingdom | 52.97 | -0.67 | 229 | 16207 |
| Marston | city | Oxfordshire | United Kingdom | 51.77 | -1.23 | 252 | 145968 |
| Marston | city | Wiltshire | United Kingdom | 51.31 | -2.05 | 223 | 6867 |
| Marston Green | city | Solihull | United Kingdom | 52.45 | -1.75 | 308 | 130171 |
| Marston Magna | city | Somerset | United Kingdom | 51.00 | -2.58 | 223 | 14314 |
| Marston Maisey | city | Wiltshire | United Kingdom | 51.67 | -1.82 | 249 | 9303 |
| Marston Meysey | city | Wiltshire | United Kingdom | 51.67 | -1.82 | 249 | 9303 |
| Marston Montgomery | city | Derbyshire | United Kingdom | 52.93 | -1.78 | 830 | 5978 |
| Marston Moretaine | city | Central Bedfordshire | United Kingdom | 52.05 | -0.55 | 249 | 21670 |
| Marston Moreteyne | city | Central Bedfordshire | United Kingdom | 52.05 | -0.55 | 249 | 21670 |
| Marstow | city | Herefordshire | United Kingdom | 51.87 | -2.65 | 252 | 5167 |
| Marsworth | city | Buckinghamshire | United Kingdom | 51.82 | -0.67 | 830 | 10083 |
| Marthall | city | Cheshire East | United Kingdom | 53.28 | -2.30 | 249 | 16477 |
| Martham | city | Norfolk | United Kingdom | 52.70 | 1.63 | 3 | 27861 |
| Martin | city | Lincolnshire | United Kingdom | 53.18 | -0.15 | 127 | 3427 |
| Martin | city | Lincolnshire | United Kingdom | 53.12 | -0.33 | 95 | 4172 |
| Martin | city | Kent | United Kingdom | 51.17 | 1.35 | 239 | 24596 |
| Martin | city | Hampshire | United Kingdom | 50.97 | -1.90 | 249 | 9371 |
| Martin Hussingtree | city | Worcestershire | United Kingdom | 52.23 | -2.17 | 239 | 99654 |
| Martinhoe | city | Devon | United Kingdom | 51.22 | -3.90 | 830 | 2403 |
| Martlesham | city | Suffolk | United Kingdom | 52.08 | 1.30 | 13 | 27205 |
| Martletwy | city | Sir Benfro | United Kingdom | 51.76 | -4.85 | 144 | 5002 |
| Martley | city | Worcestershire | United Kingdom | 52.23 | -2.37 | 249 | 1922 |
| Martock | city | Somerset | United Kingdom | 50.97 | -2.75 | 236 | 12530 |
| Marton | city | North Yorkshire | United Kingdom | 54.12 | -1.07 | 200 | 1808 |
| Marton | city | Middlesbrough | United Kingdom | 54.53 | -1.18 | 272 | 101014 |
| Marton | city | North Yorkshire | United Kingdom | 54.23 | -0.87 | 209 | 2384 |
| Marton | city | North Yorkshire | United Kingdom | 54.07 | -1.37 | 88 | 2621 |
| Marton | city | Lancashire | United Kingdom | 53.78 | -3.00 | 6 | 87921 |
| Marton | city | Lincolnshire | United Kingdom | 53.32 | -0.73 | 85 | 3707 |
| Marton | city | Shropshire | United Kingdom | 52.62 | -3.05 | 830 | 2892 |
| Marton | city | Warwickshire | United Kingdom | 52.30 | -1.40 | 249 | 8050 |
| Marton cum Moxby | city | North Yorkshire | United Kingdom | 54.12 | -1.07 | 200 | 1808 |
| Marton in the Forest | city | North Yorkshire | United Kingdom | 54.12 | -1.07 | 200 | 1808 |
| Marton le Moor | city | North Yorkshire | United Kingdom | 54.07 | -1.37 | 88 | 2621 |
| Marton near Pickering | city | North Yorkshire | United Kingdom | 54.23 | -0.87 | 209 | 2384 |
| Marton-in-Cleveland | city | Middlesbrough | United Kingdom | 54.53 | -1.18 | 272 | 101014 |
| Martyr Worthy | city | Hampshire | United Kingdom | 51.08 | -1.27 | 226 | 15051 |
| Marwood | city | Devon | United Kingdom | 51.12 | -4.08 | 354 | 11085 |
| Mary-le-bone | city | Westminster | United Kingdom | 51.50 | -0.15 | 52 | 736753 |
| Maryculter | city | Aberdeenshire | United Kingdom | 57.08 | -2.23 | 249 | 32554 |
| Maryhill | city | Glasgow City | United Kingdom | 55.88 | -4.28 | 213 | 211528 |
| Marykirk | city | Aberdeenshire | United Kingdom | 56.77 | -2.52 | 91 | 469 |
| Marylebone | city | Westminster | United Kingdom | 51.50 | -0.15 | 52 | 736753 |
| Marylebone Village | city | Westminster | United Kingdom | 51.50 | -0.15 | 52 | 736753 |
| Maryport | city | Cumbria | United Kingdom | 54.70 | -3.50 | 246 | 6120 |
| Marystow | city | Devon | United Kingdom | 50.62 | -4.22 | 830 | 85 |
| Marytavy | city | Devon | United Kingdom | 50.58 | -4.10 | 915 | 9699 |
| Maryton | city | Angus | United Kingdom | 56.68 | -2.52 | 223 | 0 |