| Town Name | District | Unitary Authority | County | Population | Area Size (Ha) | |
|---|---|---|---|---|---|---|
| Martin | New Forest | - | Hampshire | 398 | - | Map |
| Martin | Dover | - | Kent | - | - | Map |
| Martin | East Lindsey | - | Lincolnshire | - | - | Map |
| Martin Hussingtree | Wychavon | - | Worcestershire | 255 | - | Map |
| Martinhoe | North Devon | - | Devon | 104 | - | Map |
| Martlesham | Suffolk Coastal | - | Suffolk | 5501 | - | Map |
| Martlesham Heath | Suffolk Coastal | - | Suffolk | 3016 | 161 | Map |
| Martley | Malvern Hills | - | Worcestershire | 1171 | - | Map |
| Martock | South Somerset | - | Somerset | 3962 | 112 | Map |
| Marton | Ryedale | - | Yorkshire | - | - | Map |
| Marton | Ryedale | - | Yorkshire | 201 | - | Map |
| Marton | West Lindsey | - | Lincolnshire | 616 | - | Map |
| Marton | Rugby | - | Warwickshire | 484 | - | Map |
| Marton | Harrogate | - | Yorkshire | 516 | - | Map |
| Marton | - | Middlesbrough | Nottinghamshire | - | - | Map |
| Marton | - | Blackpool | Lancashire | - | - | Map |
| Martyr Worthy | Winchester | - | Hampshire | - | - | Map |
| Marwood | North Devon | - | Devon | 762 | - | Map |
| Marylebone | Westminster | - | Greater London | - | - | Map |
| Maryport | Allerdale | - | Cumbria | 9680 | 227 | Map |
| Marystow | West Devon | - | Devon | 196 | - | Map |
| Marytavy | West Devon | - | Devon | - | - | Map |
| Masham | Harrogate | - | Yorkshire | 1235 | - | Map |
| Massingham | King's Lynn and West Norfolk | - | Norfolk | 886 | - | Map |
| Matching | Epping Forest | - | Essex | 635 | - | Map |
| Matfen | Castle Morpeth | - | Northumberland | 495 | - | Map |
| Matfield | Tunbridge Wells | - | Kent | - | - | Map |
| Mathon | - | Herefordshire, County of | Herefordshire | 278 | - | Map |
| Matlock | Derbyshire Dales | - | Derbyshire | 14717 | 425 | Map |
| Matlock Bank | Derbyshire Dales | - | Derbyshire | - | - | Map |
| Matlock Bath | Derbyshire Dales | - | Derbyshire | 2455 | 89 | Map |
| Matson | Gloucester | - | Gloucestershire | - | - | Map |
| Mattersey | Bassetlaw | - | Nottinghamshire | 779 | - | Map |
| Mattishall | Breckland | - | Norfolk | 2471 | 74 | Map |
| Maughold | - | - | Isle of Man | - | - | Map |
| Maulden | Mid Bedfordshire | - | Bedfordshire | 2900 | - | Map |
| Maulds Meaburn | Eden | - | Cumbria | - | - | Map |
| Maunby | Hambleton | - | Yorkshire | 137 | - | Map |
| Mautby | Great Yarmouth | - | Norfolk | 395 | - | Map |
| Mawbray | Allerdale | - | Cumbria | - | - | Map |
| Mawdesley | Chorley | - | Lancashire | 1787 | - | Map |
| Mawgan | Kerrier | - | Cornwall | - | - | Map |
| Mawnan | Kerrier | - | Cornwall | 1454 | - | Map |
| Maxstoke | North Warwickshire | - | Warwickshire | 237 | - | Map |
| Mayfair | London, City of | - | Greater London | - | - | Map |
| Mayfield | East Staffordshire | - | Staffordshire | 1294 | - | Map |
| Mayfield | Wealden | - | Sussex | 2220 | 98 | Map |
| Mayland | Maldon | - | Essex | 3728 | - | Map |
| Meadowbank | - | Blackburn with Darwen | Lancashire | - | - | Map |
| Meadowtown | South Shropshire | - | Shropshire | - | - | Map |