A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| Nearest Place | District | ELRs |
|---|---|---|
| Macclesfield | Cheshire East | CMD1 , MCH |
| Machen | Caerphilly | BJR |
| Machpelah | Calderdale | MVN2 |
| Machynlleth | Powys | SBA2 |
| Maddiston | Falkirk | EGM1 |
| Madeley | Staffordshire - Newcastle-under-Lyme | HCM3 , LEC4 |
| Madeley Heath | Staffordshire - Newcastle-under-Lyme | HCM2 |
| Madeley Park | Staffordshire - Newcastle-under-Lyme | HCM2 , HCM3 , LEC4 |
| Maen-Offeren | Gwynedd | LJT1 , LJT2 |
| Maenan | Conwy | LJT1 |
| Maes Pennant | Flintshire | CNH3 |
| Maes-glas | Newport | GAE , NWN , SWM2 , WVL |
| Maesgeirchen | Gwynedd | CNH3 |
| Maesteg | Bridgend | BAL |
| Maesycwmmer | Caerphilly | CAR |
| Maesyrhandir | Powys | SBA2 |
| Mag Dale | Kirklees | PEH |
| Maghull | Sefton | SJO2 |
| Magor | Monmouthshire | SWM2 |
| Maiden Newton | Dorset - West Dorset | WEY |
| Maidenbower | West Sussex - Crawley | VTB3 |
| Maidenbrook | Somerset - Taunton Deane | MLN1 |
| Maidenhall | Suffolk - Ipswich | GRW , LTN1 |
| Maidenhayne | Devon - East Devon | BAE2 |
| Maidenhead | Windsor and Maidenhead | MLN1 , WBB |
| Maidensgrave | Suffolk - Suffolk Coastal | ESK |
| Maidstone | Kent - Maidstone | PWS1 , PWS2 , SBJ |
| Maindee | Newport | EUB , EUJ , SWM2 |
| Maindy | Cardiff | CAM |
| Mainsforth | County Durham | ECM5 , STF |
| Maitland Park | Greater London - Camden | BOK2 , SPC1 |
| Major’s Green | Worcestershire - Bromsgrove | TSB |
| Makeney | Derbyshire - Amber Valley | DJW , SPC8 |
| Malcoff | Derbyshire - High Peak | MAS |
| Mallaig | Highland | MLG2 |
| Malltraeth | Isle of Anglesey | CNH3 |
| Maltby | Rotherham | BKS , MAM1 , MAM2 |
| Maltman’s Hill | Kent - Ashford | XTD |
| Malton | North Yorkshire - Ryedale | YMS |
| Malvern Link | Worcestershire - Malvern Hills | WAH |
| Mancetter | Warwickshire - North Warwickshire | LEC2 |
| Manchester | Manchester | CDM1 , COL , DSE , MAJ , MVE1 , OCD , OLL1 |
| Mancot Royal | Flintshire | CNH3 |
| Manea | Cambridgeshire - Fenland | EMP |
| Maney | Birmingham | CBR2 |
| Manley | Cheshire West and Chester | CDM2 , MWC |
| Manley Common | Cheshire West and Chester | CDM2 |
| Manmoel | Caerphilly | EBW |
| Manningford Abbots | Wiltshire | BHL |
| Manningham | Bradford | SBF |
| Mannington | Swindon | MLN1 |
| Manningtree | Essex - Tendring | MAH , NTE |
| Manod | Gwynedd | LJT2 |
| Manor Park | Cheshire East | SNJ |
| Manor Park | Greater London - Newham | LTN1 |
| Manor Powis | Stirling | SAA |
| Manorbier | Pembrokeshire | PEM |
| Manorbier Newton | Pembrokeshire | PEM |
| Manordeilo | Carmarthenshire | VOT |
| Mansewood | Glasgow City | EKE , GBK |
| Mansfield | East Ayrshire | GSW |
| Mansfield | Nottinghamshire - Mansfield | PBS2 , PBS3 |
| Mansfield Woodhouse | Nottinghamshire - Mansfield | PBS3 |
| Manston | Leeds | HUL4 |
| Manthorpe | Lincolnshire - South Kesteven | ECM1 |
| Manton | North Lincolnshire | MAC3 |
| Manton | Nottinghamshire - Bassetlaw | MAC3 , MAN1 , MAN2 |
| Manton | Rutland | GSM1 , GSM2 , PMJ |
| Manvers | Rotherham | TJC3 |
| March | Cambridgeshire - Fenland | EMP |
| Marche | Shropshire | SBA1 |
| Marchington | Staffordshire - East Staffordshire | NSS |
| Marchmount | Dumfries and Galloway | GSW , MAX |
| Marchwood | Hampshire - New Forest | TTF |
| Marden | Kent - Maidstone | XTD |
| Mardy | Monmouthshire | HNL1 |
| Marfleet | City of Kingston upon Hull | HJS |
| Marford | Wrexham | WSJ2 |
| Margam | Neath Port Talbot | OVE , SWM2 |
| Margaretting | Essex - Chelmsford | LTN1 |
| Margaretting Tye | Essex - Chelmsford | LTN1 |
| Margate | Kent - Thanet | VIR |
| Markbeech | Kent - Sevenoaks | SCU1 |
| Market Harborough | Leicestershire - Harborough | SPC3 |
| Market Rasen | Lincolnshire - West Lindsey | NOB3 |
| Market Warsop | Nottinghamshire - Mansfield | HIM , WKC |
| Markham Vale | Derbyshire - Chesterfield | BCE , BOC1 , MCB |
| Markinch | Fife | ECN2 |
| Marks Tey | Essex - Colchester | LTN1 , SUD |
| Markwell | Cornwall | MLN2 |
| Marl Pits | Wakefield | WAG1 |
| Marlbrook | County of Herefordshire | SHL |
| Marley Green | Cheshire East | SYC |
| Marlow | Buckinghamshire - Wycombe | MWB |
| Marlpit Hill | Kent - Sevenoaks | RTT , SCU1 |
| Marnoch | North Lanarkshire | CBD1 |
| Marple | Stockport | MRH , TTA1 |
| Marple Bridge | Stockport | MRH , TTA1 |
| Marpleridge | Stockport | TTA1 |
| Marrel | Highland | WCK |
| Marsden | Kirklees | MVL3 |
| Marsh Barton | Devon - Exeter | EXR , MLN1 |
| Marsh Benham | West Berkshire | BHL |
| Marsh Common | South Gloucestershire | BSW |
| Marsh Farm | Luton | SPC1 |
| Marsh Gibbon | Buckinghamshire - Aylesbury Vale | OXD |
| Marsh Green | Cheshire West and Chester | CHW1 |
| Marsh Mills | City of Plymouth | LAN1 , LAN2 , MLN1 , TJY |
| Marshall’s Cross | St. Helens | DSE |
| Marshbrook | Shropshire | SHL |
| Marshes | Newport | HNL1 , SWM2 |
| Marshfield | Newport | SWM2 |
| Marshmoor | Hertfordshire - Welwyn Hatfield | ECM1 |
| Marske-by-the-Sea | Redcar and Cleveland | DSN3 |
| Marslands | Oldham | MVL3 |
| Marston | Cheshire West and Chester | CDM2 |
| Marston | Lincolnshire - South Kesteven | ABE1 , ECM1 |
| Marston | Warwickshire - North Warwickshire | DBP1 , DBP2 , KJW |
| Marston | Warwickshire - Rugby | RBS1 |
| Marston Green | Solihull | RBS1 |
| Marston Jabbett | Warwickshire - Nuneaton and Bedworth | LEC2 |
| Marston Magna | Somerset - South Somerset | WEY |
| Marston Moretaine | Central Bedfordshire | BBM |
| Marston on Dove | Derbyshire - South Derbyshire | NSS |
| Martin | Kent - Dover | BME2 |
| Martin Hussingtree | Worcestershire - Wychavon | OWW |
| Martin Mill | Kent - Dover | BME2 |
| Martin’s Heron | Bracknell Forest | RDG1 |
| Martland Mill | Wigan | WBS3 |
| Martlesham | Suffolk - Suffolk Coastal | ESK |
| Marton | Lincolnshire - West Lindsey | SPD3 |
| Marton | Middlesbrough | MBW1 |
| Marton Fold | Lancashire - Fylde | KBS1 |
| Mary Tavy | Devon - West Devon | DAC |
| Maryburgh | Highland | WCK |
| Maryfield | Dundee City | ECN3 |
| Maryhill | Glasgow City | MRL1 |
| Marykirk | Aberdeenshire | ECN5 |
| Maryport | Cumbria - Allerdale | CBC3 |
| Marywell | Aberdeenshire | ECN5 |
| Marywell | Angus | ECN4 |
| Masbrough | Rotherham | CHR , TJC2 , TJC3 |
| Mastin Moor | Derbyshire - Chesterfield | BAC3 |
| Mathern | Monmouthshire | SWM2 |
| Matlock | Derbyshire - Derbyshire Dales | AJM1 |
| Matlock Bath | Derbyshire - Derbyshire Dales | AJM1 |
| Matshead | Lancashire - Wyre | CGJ6 |
| Matthewsgreen | Wokingham | RDG2 |
| Mauchline | East Ayrshire | ANN , GSW , ZZA1 |
| Maudlands | Lancashire - Preston | CGJ6 , PBN |
| Mavesyn Ridware | Staffordshire - Lichfield | LEC2 , RRN3 |
| Maw Green | Cheshire East | CMP1 |
| Mawdlam | Bridgend | SWM2 |
| May Bank | Staffordshire - Newcastle-under-Lyme | CMD2 |
| May’s Green | Surrey - Guildford | LEJ , NGL |
| Maybole | South Ayrshire | STR1 |
| Maybury | Surrey - Woking | BML1 |
| Mayfair | Greater London - City of Westminster | XRC |
| Mayfield | West Lothian | NEM1 |
| Mayford | Surrey - Woking | WPH1 |
| Mayhill | Swansea | SWM2 |
| Mead End | Hampshire - New Forest | BML2 |
| Mead Vale | Surrey - Reigate and Banstead | VTB3 |
| Meadowbank | Cheshire West and Chester | CGJ1 |
| Meadowbank | City of Edinburgh | CPH , ECM8 |
| Meadowfoot | North Ayrshire | LGS2 |
| Meadowhill | South Lanarkshire | LRK |
| Meadows | City of Nottingham | MJT1 , TSN1 , TSN2 |
| Meaford | Staffordshire - Stafford | CMD2 |
| Meal Bank | Cumbria - South Lakeland | CGJ7 |
| Mearbeck | North Yorkshire - Craven | SAC , SKW1 |
| Measborough Dike | Barnsley | PED2 , SHB |
| Meath Green | Surrey - Reigate and Banstead | VTB3 |
| Meathop | Cumbria - South Lakeland | CBC1 |
| Meden Vale | Nottinghamshire - Mansfield | WKC |
| Meir | City of Stoke-on-Trent | NSS |
| Meir Hay | City of Stoke-on-Trent | NSS |
| Melbourn | Cambridgeshire - South Cambridgeshire | SBR |
| Melbury Bubb | Dorset - West Dorset | WEY |
| Melcombe Regis | Dorset - Weymouth and Portland | BML3 , WTQ |
| Meldon | Devon - West Devon | DAC |
| Meldreth | Cambridgeshire - South Cambridgeshire | SBR |
| Meliden | Denbighshire | CNH3 |
| Melin-y-coed | Conwy | LJT1 |
| Melincourt | Neath Port Talbot | VON |
| Melkinthorpe | Cumbria - Eden | CGJ7 |
| Melkridge | Northumberland | NEC2 |
| Melksham | Wiltshire | WEY |
| Mellguards | Cumbria - Eden | CGJ7 |
| Melling | Lancashire - Lancaster | SJC |
| Melling | Sefton | SJO2 |
| Mellis | Suffolk - Mid Suffolk | LTN1 |
| Mellor | Stockport | TTA1 |
| Mells | Suffolk - Suffolk Coastal | ESK |
| Melton | East Riding of Yorkshire | HUL1 |
| Melton | Suffolk - Suffolk Coastal | ESK |
| Melton Mowbray | Leicestershire - Melton | GSM2 , GSM3 , GSM4 |
| Melton Ross | North Lincolnshire | MAC3 |
| Menai Bridge | Isle of Anglesey | CNH3 |
| Menethorpe | North Yorkshire - Ryedale | YMS |
| Mennock | Dumfries and Galloway | GSW |
| Menston | Bradford | ILK1 |
| Menstrie | Clackmannanshire | MTE |
| Mentmore | Buckinghamshire - Aylesbury Vale | LEC1 |
| Meole Brace | Shropshire | SBA1 , SHL |
| Meols | Wirral | CWK3 |
| Merchant City | Glasgow City | ARG2 , EGM1 , NEM2 , NEM3 |
| Merchiston | City of Edinburgh | CKT , SUB2 |
| Merchiston | Falkirk | PMT |
| Mere Green | Birmingham | ALC2 |
| Merefield | Northamptonshire - Northampton | HNR |
| Meriden | Hertfordshire - Watford | WSA |
| Merkinch | Highland | WCK |
| Merle Common | Surrey - Tandridge | HGG1 , RTT , SCU1 |
| Merlin’s Bridge | Pembrokeshire | SWM2 |
| Merlin’s Cross | Pembrokeshire | PEM |
| Merrow | Surrey - Guildford | NGL |
| Merry Hill | Sandwell | DCL , RBS2 , SCL , SSP |
| Merry Lees | Leicestershire - Hinckley and Bosworth | KSL |
| Merry Oak | City of Southampton | SDP1 |
| Merstham | Surrey - Reigate and Banstead | RED2 , VTB2 |
| Merthyr | Carmarthenshire | SWM2 |
| Merthyr Tydfil | Merthyr Tydfil | CAM |
| Merthyr Vale | Merthyr Tydfil | CAM , VON |
| Merton | Oxfordshire - Cherwell | OXD |
| Merton Park | Greater London - Merton | MJW |
| Mesty Croft | Sandwell | DPJ |
| Metal Bridge | County Durham | ECM5 , FEP |
| Metal Bridge | Cumbria - Carlisle | KMG1 , KMG2 , WCM1 |
| Metheringham | Lincolnshire - North Kesteven | SPD2 |
| Methil | Fife | MTL2 |
| Methley | Leeds | MEW1 , MEW2 , TJC3 |
| Mewith Head | North Yorkshire - Craven | SKW1 |
| Mexborough | Doncaster | PED4 , PED5 , SJM2 , WME |
| Mickle Trafford | Cheshire West and Chester | CDM2 , CDM3 , CHW1 |
| Micklefield | Buckinghamshire - Wycombe | NAJ2 |
| Micklefield | Leeds | CFM , HUL3 |
| Mickleham | Surrey - Mole Valley | BTH3 |
| Mickleton | Gloucestershire - Cotswold | OWW |
| Mid Reddish | Stockport | HNS |
| Middle Aston | Oxfordshire - Cherwell | DCL |
| Middle Claydon | Buckinghamshire - Aylesbury Vale | OXD |
| Middle Deal | Kent - Dover | BME2 |
| Middle Green | Buckinghamshire - South Bucks | MLN1 |
| Middle Rasen | Lincolnshire - West Lindsey | NOB3 |
| Middle Stoke | Medway | HTG |
| Middle Taphouse | Cornwall | MLN3 |
| Middle Town | North Yorkshire - Craven | SKS1 |
| Middle Wick | Gloucestershire - Stroud | BGL2 |
| Middlebie | Dumfries and Galloway | WCM1 |
| Middlefield | Aberdeen City | ANI1 |
| Middlefield | Falkirk | OCL |
| Middleforth Green | Lancashire - South Ribble | CGJ5 , FCO , PSR1 |
| Middlehill | Wiltshire | MLN1 |
| Middleport | City of Stoke-on-Trent | CMD2 |
| Middlesbrough | Middlesbrough | DSN2 , MBW1 , MGY |
| Middleshaw | Dumfries and Galloway | WCM1 |
| Middleton | Midlothian | SBO |
| Middleton | Northumberland | ECM7 |
| Middleton Junction | Oldham | MVN2 |
| Middleton Moor | Suffolk - Suffolk Coastal | ESK |
| Middleton St George | Darlington | DSN1 |
| Middletown | Powys | SBA1 |
| Middlewich | Cheshire East | SNJ |
| Middlewood | Cheshire East | BEJ |
| Middlewood | Sheffield | MAC3 |
| Middridge | County Durham | DAE1 |
| Midge Hall | Lancashire - South Ribble | FCO |
| Midgham | West Berkshire | BHL |
| Midway | Cheshire East | MCH |
| Milber | Devon - Teignbridge | MLN1 , TOR |
| Milborne Wick | Somerset - South Somerset | BAE2 |
| Mile End | Cambridgeshire - East Cambridgeshire | ETN |
| Mile End | Greater London - Tower Hamlets | FSS1 , XRE |
| Mile House | City of Kingston upon Hull | HJS |
| Milebrook | Powys | CWL2 |
| Miles Platting | Manchester | BPP , MPR1 , MVL1 |
| Milford | Derbyshire - Amber Valley | SPC8 |
| Milford | Staffordshire - Stafford | LEC2 |
| Milford | Wiltshire | RTJ2 |
| Milford Haven | Pembrokeshire | MIL |
| Milkhouse Water | Wiltshire | BHL |
| Mill Common | Suffolk - Waveney | ESK |
| Mill End | Hertfordshire - Three Rivers | MCJ2 |
| Mill End | Warwickshire - Warwick | LSC2 |
| Mill End | Worcestershire - Wychavon | BAG2 |
| Mill Green | Staffordshire - Cannock Chase | RRN1 , RRN2 |
| Mill Green | Walsall | CBR2 |
| Mill Hill | Blackburn with Darwen | FHR4 |
| Mill Hill | Bolton | AST , BBB |
| Mill Hill | Kent - Dover | BME2 |
| Mill Hills | Suffolk - Suffolk Coastal | ESK |
| Mill Hole | Suffolk - Suffolk Coastal | ESK |
| Mill Meads | Greater London - Newham | FSS1 |
| Mill Shaw | Leeds | DOL2 , MDL1 |
| Mill Street | Kent - Tonbridge and Malling | SBJ |
| Mill of Fintray | Aberdeenshire | ANI1 |
| Millarston | Renfrewshire | AYR3 |
| Millbrook | Central Bedfordshire | BBM , SPC1 |
| Millbrook | City of Southampton | BML2 |
| Millburn | Highland | ANI3 , HGL2 , INS , RSW |
| Milldamhead | Dumfries and Galloway | GSW |
| Millerhill | Midlothian | MHL2 , MHL3 , MHL4 , MLE , NDE1 , NDE2 , SBO |
| Millers Green | Derbyshire - Derbyshire Dales | DJW |
| Millersneuk | East Dunbartonshire | EGM1 |
| Millerston | North Lanarkshire | CBD2 |
| Millfield | City of Peterborough | ECM1 , PHS , PMJ |
| Millfield | Sunderland | NEK |
| Millhall | Kent - Tonbridge and Malling | PWS2 |
| Millhead | Lancashire - Lancaster | CBC1 , CEC , CGJ7 , SJC |
| Millhousebridge | Dumfries and Galloway | WCM1 |
| Millhouses | Sheffield | TJC1 |
| Millmeece | Staffordshire - Stafford | LEC4 |
| Millom | Cumbria - Copeland | CBC1 |
| Mills Hill | Oldham | MVN2 |
| Milltown | Cornwall | LOF , MLN3 |
| Milltown of Rothiemay | Moray | ANI1 |
| Millwood | Calderdale | FHR6 , MVN2 |
| Milnafua | Highland | WCK |
| Milngavie | East Dunbartonshire | MGE |
| Milnrow | Rochdale | MPR3 |
| Milnsbridge | Kirklees | MVL3 |
| Milnwood | North Lanarkshire | EGS1 , JVN , MDE , MDW , SCM1 , SCM2 , ZZD1 |
| Milton | Barnsley | SHB |
| Milton | Cambridgeshire - South Cambridgeshire | BGK |
| Milton | City of Stoke-on-Trent | SCQ1 , SCQ2 |
| Milton | Cumbria - Carlisle | NEC2 |
| Milton | Glasgow City | EGM1 |
| Milton | Highland | ANI3 , WCK |
| Milton | Kent - Gravesham | HDR |
| Milton | North Somerset | MLN1 , WSM |
| Milton | Oxfordshire - Vale of White Horse | DPS , MLN1 |
| Milton | Perth and Kinross | SCM4 |
| Milton | West Dunbartonshire | GOU2 , NEM6 |
| Milton Common | Oxfordshire - South Oxfordshire | THA |
| Milton Ernest | Bedford | SPC2 |
| Milton Heights | Oxfordshire - Vale of White Horse | MLN1 |
| Milton Malsor | Northamptonshire - South Northamptonshire | HNR |
| Milton Regis | Kent - Swale | SEJ2 |
| Milton of Balgonie | Fife | MTL1 |
| Milton of Edradour | Perth and Kinross | HGL2 |
| Miltonduff | Moray | ANI2 |
| Milverton | Warwickshire - Warwick | DCL , LSC1 , LSC2 |
| Minehead | Somerset - West Somerset | MIN |
| Minety | Wiltshire | SWM1 |
| Minety Common | Wiltshire | SWM1 |
| Minffordd | Gwynedd | CNH3 , DJP |
| Minishant | South Ayrshire | STR1 |
| Minster | Kent - Thanet | ACR |
| Minsterworth | Gloucestershire - Tewkesbury | SWM2 |
| Mintsfeet | Cumbria - South Lakeland | OXW |
| Minworth | Birmingham | CBR1 , CBR2 , DBP3 , WOP |
| Mirehouse East | Cumbria - Copeland | CBC1 |
| Mirehouse West | Cumbria - Copeland | CBC1 |
| Mirfield | Kirklees | MVN2 |
| Miskin | Rhondda Cynon Taf | ABD , MOA , SWM2 , VON |
| Misterton | Nottinghamshire - Bassetlaw | SPD4 |
| Misterton | Somerset - South Somerset | BAE2 |
| Mistley | Essex - Tendring | MAH , MII |
| Mitcham | Greater London - Merton | BTH1 , MJW |
| Mixtow | Cornwall | LOF |
| Mobberley | Cheshire East | CDM2 |
| Mobley | Gloucestershire - Stroud | SAW |
| Mochdre | Conwy | CNH3 |
| Mockbeggar | Kent - Gravesham | HDR |
| Moffat | Dumfries and Galloway | WCM1 |
| Moira | Leicestershire - North West Leicestershire | KSL |
| Molehill Green | Essex - Uttlesford | TLA |
| Molescroft | East Riding of Yorkshire | HBS |
| Moncreiffe | Perth and Kinross | SCM4 |
| Mondynes | Aberdeenshire | ECN5 |
| Moneyhill | Hertfordshire - Three Rivers | MCJ2 |
| Mongleath | Cornwall | FAL3 |
| Monifieth | Angus | ECN3 |
| Monk Fryston | North Yorkshire - Selby | HUL3 , MGW , NOC , SHG , SMJ3 |
| Monk Moors | Cumbria - Copeland | CBC1 |
| Monkerton | Devon - Exeter | BAE2 |
| Monkhill | Wakefield | CPM1 , WAG1 |
| Monkmoor | Shropshire | WSJ2 |
| Monks Green | Hertfordshire - East Hertfordshire | HDB |
| Monks Orchard | Greater London - Croydon | LCH |
| Monks Risborough | Buckinghamshire - Wycombe | PRA |
| Monkspath | Solihull | DCL |
| Monkswood | Midlothian | SBO |
| Monkswood | Monmouthshire | ROS |
| Monkton | Kent - Thanet | ACR |
| Monkton | South Ayrshire | AYR6 |
| Monkton Combe | Bath and North East Somerset | BFB |
| Monktonhall | East Lothian | ECM8 , MHL1 , MHL2 |
| Monkwearmouth | Sunderland | APY , HNB , LEN3 , RWS |
| Monmore Green | City of Wolverhampton | RBS2 |
| Monmouth Cap | Monmouthshire | HNL1 |
| Montpelier | City of Bristol | BSW , CNX |
| Montrose | Angus | ECN4 |
| Monxton | Hampshire - Test Valley | BAE1 |
| Moor End | Worcestershire - Wychavon | BAG2 |
| Moor Garforth | Leeds | HUL4 |
| Moor Green | Birmingham | SKN |
| Moor Hall | Birmingham | ALC2 |
| Moor Monkton | North Yorkshire - Harrogate | HAY1 |
| Moor Monkton Moor | North Yorkshire - Harrogate | HAY1 |
| Moor Park | Hertfordshire - Three Rivers | MCJ2 |
| Moor Side | Leeds | LEH1 |
| Moor Street | Medway | VIR |
| Moorclose | Rochdale | MVN2 |
| Moore | Halton | CGJ2 , CHW1 |
| Moorend | Staffordshire - Staffordshire Moorlands | SCQ3 |
| Moorends | Doncaster | TJG2 |
| Moorfields | City of Bristol | BAW , BSW |
| Moorfields | County of Herefordshire | HNL2 |
| Moorhaven Village | Devon - South Hams | MLN1 |
| Moorhead | Bradford | TJC3 |
| Moorside | Leeds | TJC3 |
| Moorswater | Cornwall | LIL , LOO , MLN3 |
| Moorthorpe | Wakefield | DOL1 , FRC1 , SKM , SMJ2 |
| Moorthwaite | Cumbria - Carlisle | SAC |
| Moortown | Lincolnshire - West Lindsey | NOB3 |
| Morar | Highland | MLG2 |
| Morchard Road | Devon - Mid Devon | NDN |
| Morden | Greater London - Merton | MJW , SMS2 |
| Morden Park | Greater London - Merton | SMS2 |
| Mordon | County Durham | ECM5 , STF |
| Morecambe | Lancashire - Lancaster | MHH , MSM |
| Morehall | Kent - Shepway | XTD |
| Moreton | County of Herefordshire | SHL |
| Moreton | Oxfordshire - South Oxfordshire | THA |
| Moreton | Pembrokeshire | PEM |
| Moreton | Staffordshire - East Staffordshire | NSS |
| Moreton | Wirral | CWK3 |
| Moreton on Lugg | County of Herefordshire | SHL |
| Moreton-in-Marsh | Gloucestershire - Cotswold | OWW |
| Morfa | Carmarthenshire | SWM2 |
| Morfa Borth | Ceredigion | SBA2 |
| Morganstown | Cardiff | CAM |
| Morningside | City of Edinburgh | SUB2 |
| Morningside | North Lanarkshire | COS2 |
| Morridge Side | Staffordshire - Staffordshire Moorlands | SCQ3 |
| Mortlake | Greater London - Richmond upon Thames | RDG1 |
| Morton | Derbyshire - North East Derbyshire | TCC |
| Morton | Isle of Wight | IOW |
| Morton | Lincolnshire - West Lindsey | MAC3 |
| Morton | Nottinghamshire - Bassetlaw | MAC3 |
| Morton | Nottinghamshire - Newark and Sherwood | NOB1 |
| Morton | Shropshire | GNQ4 |
| Morton Hall | Lincolnshire - North Kesteven | NOB1 |
| Morton-on-Swale | North Yorkshire - Hambleton | REB2 |
| Morwellham Quay | Devon - West Devon | CAL , DAC |
| Moseley | Birmingham | SKN |
| Moseley Village | City of Wolverhampton | PBJ , PJW |
| Moses Gate | Bolton | MVE1 |
| Moss | Doncaster | ECM2 |
| Moss Bank | Halton | SDJ2 |
| Moss Hey | Oldham | MPR3 |
| Moss Houses | Cheshire East | CMD1 |
| Moss Lane | Cheshire East | CMD1 |
| Moss Nook | Manchester | MIA , SMA , STY |
| Moss Nook | St. Helens | DSE |
| Moss Pit | Staffordshire - Stafford | RBS3 |
| Moss Side | Lancashire - Fylde | KBS1 |
| Moss-side | Highland | ANI3 |
| Mossbay | Cumbria - Allerdale | CBC2 |
| Mossblown | South Ayrshire | ANN , KCH1 |
| Mossend | North Lanarkshire | EGS1 , MDW , SCM2 , ZZC9 , ZZD1 |
| Mossend | West Lothian | EGS2 |
| Mossley | Cheshire East | CMD1 |
| Mossley Brow | Tameside | MVL3 |
| Mossley Hill | Liverpool | WJL3 |
| Mosspark | Glasgow City | CNL , ZZB2 |
| Mosstowie | Moray | ANI2 |
| Moston | Cheshire East | CMP1 |
| Moston | Cheshire West and Chester | CRR1 |
| Moston | Manchester | MPR2 , MVN2 |
| Mostyn | Flintshire | CNH3 |
| Motherwell | North Lanarkshire | HMN1 , SCM1 , WCM2 |
| Motspur Park | Greater London - Kingston upon Thames | MPC , RPE |
| Mott’s Mill | East Sussex - Wealden | SCU1 |
| Mottingham | Greater London - Bromley | HDR , XTD |
| Mouldsworth | Cheshire West and Chester | CDM2 , MWC |
| Moulin | Perth and Kinross | HGL2 |
| Moulsecoomb | The City of Brighton and Hove | BTL |
| Moulsford | Oxfordshire - South Oxfordshire | MLN1 |
| Moulsham | Essex - Chelmsford | LTN1 |
| Moulton | Cheshire West and Chester | CGJ1 |
| Mount Ambrose | Cornwall | MLN4 |
| Mount Bures | Essex - Colchester | SUD |
| Mount Charles | Cornwall | MLN3 |
| Mount Florida | Glasgow City | CNC , CTC |
| Mount Gould | City of Plymouth | FRY , LAS , SUT2 , TUR |
| Mount Hermon | Surrey - Woking | BML1 , WKG8 , WKG9 , WPH1 |
| Mount Pleasant | Conwy | CNH3 |
| Mount Pleasant | Derbyshire - Amber Valley | SPC8 |
| Mount Pleasant | Derbyshire - South Derbyshire | KSL |
| Mount Pleasant | Devon - East Devon | BAE2 |
| Mount Pleasant | East Sussex - Lewes | STS |
| Mount Pleasant | Flintshire | CNH3 |
| Mount Pleasant | Gateshead | LEN3 |
| Mount Pleasant | Hampshire - East Hampshire | PAA2 |
| Mount Pleasant | Hampshire - New Forest | BLP |
| Mount Pleasant | Neath Port Talbot | SWM2 |
| Mount Pleasant | Rhondda Cynon Taf | THT |
| Mount Pleasant | Shropshire | SYC , WSJ2 |
| Mount Pleasant | Staffordshire - East Staffordshire | NSS |
| Mount Pleasant | Stockton-on-Tees | LEN3 |
| Mount Pleasant | Sunderland | FEP |
| Mount Pleasant | Warwickshire - Nuneaton and Bedworth | CNN |
| Mount Vernon | Glasgow City | RCB |
| Mountain Ash | Rhondda Cynon Taf | ABD , MOA |
| Mountain Hare | Merthyr Tydfil | TBD |
| Mountain Street | Kent - Ashford | ACR |
| Mountblow | West Dunbartonshire | NEM5 |
| Mountfield | East Sussex - Rother | TTH |
| Mountgerald | Highland | WCK |
| Mountjoy | Cornwall | NEW |
| Mountnessing | Essex - Brentwood | LTN1 |
| Mountvernon | Highland | TSO |
| Mouswald | Dumfries and Galloway | GSW |
| Mowden | Essex - Braintree | LTN1 |
| Mowshurst | Kent - Sevenoaks | RTT |
| Moy | Highland | HGL2 |
| Muchalls | Aberdeenshire | ECN5 |
| Mucking | Thurrock | THN , TLL |
| Muckleford | Dorset - West Dorset | WEY |
| Muie | Highland | WCK |
| Muir of Kinellar | Aberdeenshire | ANI1 |
| Muir of Ord | Highland | WCK |
| Muirend | Glasgow City | NNH |
| Muirhead | Fife | ECN2 |
| Muirhead | North Lanarkshire | CBD2 |
| Muirhead | South Ayrshire | AYR5 , ZZA4 |
| Muirton | Perth and Kinross | HGL1 , SCM4 |
| Mulben | Moray | ANI2 |
| Mullenspond | Hampshire - Test Valley | LUD2 |
| Mumps | Oldham | MPR3 |
| Munsley | County of Herefordshire | WAH |
| Munstone | County of Herefordshire | SHL |
| Murch | Vale of Glamorgan | BRY |
| Murcott | Northamptonshire - Daventry | HNR , LEC1 |
| Murdishaw | Halton | CHW1 |
| Murhill | Wiltshire | BFB |
| Murieston | West Lothian | ECA2 , EGS2 |
| Mursley | Buckinghamshire - Aylesbury Vale | OXD |
| Murthly | Perth and Kinross | HGL2 |
| Muscott | Northamptonshire - Daventry | LEC1 |
| Muston | Leicestershire - Melton | NOG1 |
| Muston | North Yorkshire - Scarborough | HBS |
| Mutley | City of Plymouth | MLN1 |
| Mutterton | Devon - Mid Devon | MLN1 |
| Muxton | Telford and Wrekin | WND |
| Mynydd Marian | Conwy | CNH3 |
| Mynyddygarreg | Carmarthenshire | CMM |
| Myrke | Slough | SWE |
| Mystole | Kent - Canterbury | ACR |
| Mytchett | Surrey - Surrey Heath | AAV , PAA1 |
| Mytholm | Calderdale | MVN2 |
| Mytholmroyd | Calderdale | MVN2 |
| Mythop | Lancashire - Fylde | PBN |
| Môrawelon | Isle of Anglesey | CNH3 |