M
Machen
Caerphilly
Machynlleth
Powys
Madryn
Gwynedd
Maefor
Carmarthenshire
Maenan
Conwy
Maenclochog
Pembrokeshire
Maendy
Vale of Glamorgan
Maentwrog
Gwynedd
Maenygroes
Ceredigion
Maerdy
Conwy
Maerdy
Rhondda Cynon Taf
Maerdy-Newydd
Vale of Glamorgan
Maeshafn
Denbighshire
Maesllyn
Ceredigion
Maesmynis
Powys
Maesteg
Bridgend
Maesybont
Carmarthenshire
Maesycoed
Rhondda Cynon Taf
Maesycrugiau
Carmarthenshire
Maesycwmmer
Caerphilly
Maesygwartha
Monmouthshire
Magor
Monmouthshire
Maiden Wells
Pembrokeshire
Malltraeth
Isle of Anglesey
Mallwyd
Gwynedd
Mamhilad
Monmouthshire
Man-moel
Caerphilly
Manafon
Powys
Mancot
Flintshire
Manod
Gwynedd
Manorbier
Pembrokeshire
Manorbier Newton
Pembrokeshire
Manordeilo
Carmarthenshire
Manorowen
Pembrokeshire
Manorside
Monmouthshire
Marchwiel
Wrexham
Marcross
Vale of Glamorgan
Marford
Wrexham
Margam
Neath Port Talbot
Marian
Flintshire
Marian Cwm
Denbighshire
Marian Mills
Flintshire
Marianglas
Isle of Anglesey
Markham
Caerphilly
Marloes
Pembrokeshire
Marros
Carmarthenshire
Marshfield
Newport
Martletwy
Pembrokeshire
Maryland
Monmouthshire
Mathafarn
Powys
Mathern
Monmouthshire
Mathry
Pembrokeshire
Mawdlam
Bridgend
Maypole
Monmouthshire
Measderwen
Powys
Meidrim
Carmarthenshire
Meifod
Powys
Meinciau
Carmarthenshire
Meliden
Denbighshire
Melin Rûg
Denbighshire
Melin y wig
Denbighshire
Melinbyrhedin
Powys
Melincourt
Neath Port Talbot
Menai Bridge
Isle of Anglesey
Merrion
Pembrokeshire
Merthyr Cynog
Powys
Merthyr Mawr
Bridgend
Merthyr Tydfil
Merthyr Tydfil
Merthyr Vale
Merthyr Tydfil
Mesur-y-dorth
Pembrokeshire
Met Stas
Powys
Michaelchurch on Arrow
Powys
Michaelston-le-Pit
Vale of Glamorgan
Michaelston-y-Vedw
Newport
Middle Mill
Pembrokeshire
Middleton
Swansea
Middletown
Powys
Milebrook
Powys
Milford
Powys
Milford Haven
Pembrokeshire
Milo
Carmarthenshire
Milton
Pembrokeshire
Milwr
Flintshire
Minera
Wrexham
Minffordd
Gwynedd
Minffordd
Gwynedd
Minllyn
Gwynedd
Miskin
Rhondda Cynon Taf
Mitchel Troy
Monmouthshire
Mochdre
Conwy
Mochdre
Powys
Moel Cynnedd
Powys
Moel-y-crio
Flintshire
Moel-y-don
Isle of Anglesey
Moelfre
Isle of Anglesey
Moelfryn
Ceredigion
Moelgiliau
Bridgend
Mold
Flintshire
Mona
Isle of Anglesey
Monachty
Ceredigion
Monington
Pembrokeshire
Monknash
Vale of Glamorgan
Monkswood
Monmouthshire
Monkton
Pembrokeshire
Monmouth
Monmouthshire
Montgomery
Powys
Morfa Bychan
Gwynedd
Morfa Nefyn
Gwynedd
Moriah
Ceredigion
Morriston
Swansea
Moss
Wrexham
Mostyn
Flintshire
Moulton
Vale of Glamorgan
Mount Pleasant
Rhondda Cynon Taf
Mountain Ash
Rhondda Cynon Taf
Mountain Water
Pembrokeshire
Moylgrove
Pembrokeshire
Mumbles
Swansea
Mwnt
Ceredigion
Myddfai
Carmarthenshire
Mydroilyn
Ceredigion
Mynachlogddu
Pembrokeshire
Mynydd Isa
Flintshire
Mynydd Llandygái
Gwynedd
Mynydd Mechell
Isle of Anglesey
Mynydd-bach
Monmouthshire
Mynyddcerrig
Carmarthenshire
Mynyddislwyn
Caerphilly
Mynyddygarreg
Carmarthenshire
Mynytho
Gwynedd