Abbey Cwmhir (Abbeycwmhir, Wales)- Abbey-Cwmhir
- Aber
- Aber Castle Mound
- Aber Cowarch
Aber Railway Station- Aber-Arth
- Aber-banc
- Aber-Brân
- Aber-Menai Point
- Aber-nant
- Aber-pergwm
- Aberaeron
- Aberaeron Hospital
- Aberaman
- Aberangell
- Aberbargoed
- Aberbargoed & District Hospital
- Aberbeeg
- Abercanaid
- Abercarn
- Abercastle
- Abercegir
- Abercych
- Abercynon
- Abercynon Railway Station
- Aberconwy Abbey (Conwy, Wales) 1199-1283
- Aberconwy House
- Abercraf
- Abercregan
- Aberdare
- Aberdare General Hospital
Aberdare Golf Club- Aberdare Railway Station
- Aberdaron
- Aberdesach
- Aberdyfi
- Aberdovey Golf Club
- Aberdovey Railway Station
- Aberdulais
- Aberedw
- Aberedw Castle
- Aberedw Motte
- Abereiddy
- Abererch
- Abererch Railway Station
- Aberfan
- Aberffraw
- Aberffrwd
- Abergarwed
- Abergavenny
Abergavenny- Abergavenny Castle
- Abergavenny Railway Station
- Abergele
- Abergele And Pensarn Railway Station
- Abergele Golf Club Ltd
- Abergynolwyn
- Abergynolwyn Railway Station
- Abergorlech
- Abergwesyn
- Abergwili
- Abergwynfi
- Abergwyngregyn
- Aberhafesp
- Aberhafesp Hall Mound
- Aberhosan
- Aberyscir
- Aberyscir Motte
- Aberyscir Ringwork
- Aberystwyth
- Aberystwyth Arts Centre, Theatre Y Werin
- Aberystwyth bandstand
- Aberystwyth Castle
- Aberystwyth cemetery
- Aberystwyth Cliff Railway
- Aberystwyth Pier
- Aberystwyth railway station
- Aberystwyth Town Hall
- Aberystwyth War memorial
- Aberkenfig
- Aberllefenni
- Aberllynfi Castle
- Abermagwr
- Abermule
- Abernant
- Aberporth
- Aberporth
- Aberporth Airport
- Abersychan
- Abersoch
- Aberthaw
- Aberthaw Power Station
- Aberthin
- Abertillery
- Abertysswg
- Abertridwr
- Abertridwr
- Aberwheeler
- Acrefair
- Adfa
- Adpar
- Adpar Motte
Afan Lido- Afon Marteg Mount
- Afon-wen
- Airbus UK FC
- Alexanderstone Motte
- Alisby Castle
- Allt
- Allt y Ferin
- Allt Ogofau
- Allt Pant Glas
- Allt Wen
- Alltami
- Alltyblaca
- Alltmawr
- Alltwalis
- Alltwen
- Ambleston
- Amlwch
- Ammanford
- Ammanford Railway Station
- Ammanvalley Hospital
- Amroth
- Amroth Castle
- Angle
- Angle Castle
Anglesey- Aran Benllyn
- Aran Fawddwy
- Arddleen
- Arenig Fach
- Arenig Fawr
- Arfon transmitting station
- Arthog
- Ashfield
- Aston
- Axton
- Babell
- Bagillt
- Baglan
- Baglan Railway Station
- Bailey Farm
- Bala
- Bala
- Bala Adventure and Watersports
- Banc y Bettws
- Banc Mawr
- Bancffosfelen
- Bancyfelin
- Bangor
- Bangor
- Bangor Cathedral
- Bangor Pier
- Bangor Racecourse
- Bangor Teifi
- Bangor-is-y-coed
- Bank Farm Enclosure
- Bank Llwyndomen
- Banwen
- Bardsey Island
- Bargoed
- Bargoed Railway Station
- Barland Motte
- Barmouth
- Barmouth Ferry
- Barmouth Junction
- Barmouth Tower House
- Barry
- Barry Castle
- Barry Docks Railway Station
- Barry Hospital The
- Barry Island
- Barry Island Railway Station
- Barry Railway Station
- Basingwerk Abbey
- Bassaleg
- Bastion Road
Bathesda Bach- Battle Tump
- Baxter Healthcare Ltd
- Beacon Hill
- Beaufort
- Beaumaris
- Beaumaris Castle
- Beauville Castle
- Beddau
- Beddgelert
- Beddgelert
- Bedford Castle
- Bedlinog
- Bedwas
- Bedwellty
- Begelly
- Beguildy
- Beili Helyg Motte
- Beili-Bedw
- Belgrano
- Benllech
- Benton Castle
- Berriew
- Bersham
- Berth-ddu
- Berthengam
- Berwyn
- Berwyn Station
- Bethania
- Bethel
- Bethel
- Bethesda
- Bethesda
- Bettisfield
- Bettws Cedewain
- Bettws Disserth
- Bettws Gwerfil Goch
- Bettws-Evan
- Betws
- Betws
- Betws Bledrws
- Betws Garmon
- Betws Ifan
- Betws-y-Coed
- Betws-y-Coed Railway Station
- Betws-yn-Rhôs
- Beulah
- Big Mancot
- Biglis Farm
- Bynea
- Bynea Railway Station
- Birchgrove
- Birchgrove Railway Station
- Bishops Moat
- Bishopston
- Bishopton Old Castle
- Bishton
- Bishton Castle
- Black Mountain
- Black Mountains
- Blackmill
- Blackrock
- Blackwood
- Blackwood Enclosure
- Blaenannerch
- Blaenau
- Blaenau Ffestiniog Railway Station
- Blaenau Tower
- Blaenau-Ffestiniog
- Blaenavon
- Blaenavon Health Care Unit
- Blaenavon World Heritage Centre
- Blaenffos
- Blaengarw
- Blaengwynfi
- Blaengwrach
- Blaenpenal
- Blaenplwyf Transmitting Station
- Blaenporth
- Blaenporth Castle
- Blaenwaun
- Blaina
- Bleddfa
- Bleddfa Castle
- Bletherston
- Blue Anchor
- Bodedern
- Bodelwyddan
- Bodelwyddan Castle
- Bodewryd
- Bodfari
- Bodfean
- Bodffordd
- Bodnant Garden
- Bodorgan
- Bodorgan Station
- Bogs Mount Castle
- Boncath
- Bont Dolgadfan
- Bontddu
- Bontnewydd
- Bontnewydd
- Bontnewydd Halt
- Bonvilles Court
- Bonvilston
- Borth
- Borth Animalarium
- Borth Railway Station
- Borth-y-Gest
- Borthwen Point
- Bosherston
- Boston Lodge Halt Railway Station
- Botwnnog
- Boughrood
- Boughrood Motte
- Boulston
- Bovehill Castle
- Boverton
- Bow Street
- Bradley
- Braich y Pwll
- Brawdy
- Brawdy
- Breaksea Light Vessel (historical)
- Breaksea Point
- Brechfa
- Brecon
- Brecon Beacons
- Brecon Beacons National Park
- Brecon Castle
- Brecon War Memorial Hospital
- Breidden Hill
- Bretton
- Bridell
- Bridge Meadow Stadium
- Bridgend
- Bridgend Industrial Estate Queens Rd
- Bridgend Railway Station
- Brymbo
- Bryn
- Bryn
- Bryn Beryl Hospital
- Bryn Brawd
- Bryn Castell
- Bryn Derwen Motte
- Bryn Du
- Bryn Eglwys
- Bryn Garw
- Bryn y Castell
- Bryn y Cwn Motte
- Bryn Y Neuadd Hospital
- Bryn yr Erye Enclosure
- Bryn Llys
- Bryn Maen Caerau
- Bryn Moel Mediumwave Transmitter
- Bryn Pydew
- Bryn Seiont Hospital The
- Bryn-crug
- Bryn-ffanigl Ucha
- Brynamman
- Brynawel
- Brynberian
- Bryncae
- Bryncethin
- Bryncir
- Bryncroes
- Bryneglwys
- Brynford
- Brynglas Railway Station
- Bryngwyn
- Bryngwyn Bach Airfield
- Bryngwran
- Brynhyfryd
- Brynhill Barry Golf Club
- Brynhoffnant
- Brynygwenin
- Brynithel
- Brynmawr
- Brynmenyn
- Brynna
- Brynnau Gwynion
- Brynrefail
- Brynrefail
- Brynsadler
- Brynsiencyn
- Brynteg
- Brynteg
- Brynwell Leckwith
- Brithdir
- Brithdir Railway Station
- Brithdir Village
- Briton Ferry
- Briton Ferry Motte
- Briton Ferry Road Station
- Bro Ddyfi Community Hospital
- Broad Haven
- Broad Haven South Beach
- Broadlay
- Broadmoor
- Broadstone
- Broadstreet Common
- Broadway
- Broadway
- Bron Felin Motte
- Bron Y Garth Hospital
- Bronant
- Brondini
- Broney Castle
- Brongest
- Bronglais Hospital
- Brongwyn
- Bronington
- Bronllys
- Bronllys Castle
- Bronllys Hospital
- Bronwydd
- Bronwydd Arms
- Brook
- Brookhouse
- Broughton
- Broughton
- BT Cardiff Bay International Data Centre
- Buckley
- Buckley Railway Station
- Builth Cottage Hospital
- Builth Road
- Builth Road Railway Station
- Builth Wells
- Builth Wells Castle
- Bull Bay
- Bupa Yale Hospital
- Burntwood Pentre
- Burry Green
- Burry Holms
- Burry Port
- Burton
- Burton
- Burton Ferry
- Bute Town
- Butetown
- Butetown Community
- Buttington
- Bwlch
- Bwlch
- Bwlch Coch
- Bwlch y Groes
- Bwlch-y-cibau
- Bwlchgwyn
- Bwlchygroes
- Bwlchnewydd
- Bwlchtocyn
- Cadair Idris
- Cader Bronwen
- Cadole
- Cadoxton
- Cadoxton Railway Station
- Cadwgan Point
- Cae Burdydd Castle
- Cae Castell
- Cae Dan y Domen Placename
- Cae Domen Mound
- Cae Domen Placename
- Cae Dommen
- Cae Gaer
- Cae Gawr Placename
- Cae Thygle Enclosure
- Cae Twmpin Placename
- Cae Wall Wood Motte
- Cae'r-bryn
- Cae’r-geiliog
- Caeathro
- Caehopkin
- Caer Beris Motte
- Caer Castell
- Caer Dynnaf
- Caer Dommon Mound
- Caer Fach
- Caer Fach Fieldname
- Caer y Bont
- Caer Licyn
- Caer Siac Motte
- Caerau Castle
- Caerau Motte
- Caerdeon
- Caerfai Beach
- Caergwrle
- Caergwrle Castle
- Caergwrle Railway Station
- Caerhowel
- Caerhun
- Caerhûn
- Caerleon
- Caerleon Castle
- Caernarfon
- Caernarfon Airport
- Caernarfon Castle
- Caernarfon Railway Station
- Caernarfon Town FC
- Caerphilly
- Caerphilly Castle
- Caerphilly District Miners Hospital
- Caerphilly Railway Station
- Caersws
- Caersws FC
- Caersws Railway Station
- Caerwedros
- Caerwent
- Caerwent Motte
- Caerwys
- Caio
- Calcoed
- Caldey Island
- Caldicot
- Caldicot Castle
- Caldicot Railway Station
- Cambrian Mountains
- Camen Mound
- Campbell's Platform Railway Station
- Camrose
- Camrose Castle
- Candlestone Castle
- Canisland
- Cantref
- Cantref Adventure Farm and Riding Centre
- Cantref Adventure Farm and Riding Centre
- Capel Bangor
- Capel Bangor
- Capel Coch
- Capel Curig
- Capel Dewi
- Capel Dewi
- Capel Garmon
- Capel Gwyn
- Capel Hendre
- Capel Isaac
- Capel Iwan
- Capel Llanilltern
- Capel Mawr
- Capel Seion
- Capel-Bettws Lleucu
- Capel-Cynon
- Capel-y-ffin
- Capeluchaf
- Capelulo
- Cardiff
- Cardiff Airport
- Cardiff Arms Park
- Cardiff Bay Railway Station
- Cardiff Castle
- Cardiff Central Railway Station
- Cardiff City
- Cardiff Golf Club
- Cardiff International Sports Stadium
- Cardiff Millenium Stadium
- Cardiff Queen Street Railway Station
- Cardiff University
- Cardiff university Queens Buildings
- Cardigan
- Cardigan & District Memorial Hospital
- Cardigan Castle
- Cardigan Island
- Cardigan Old Castle Motte
- Carew
- Carew Castle
- Carew Newton
- Carew Old Rectory
- Carmarthen
- Carmarthen Castle
- Carmarthen Railway Station
- Carmarthenshire NHS Trust West Wales General Hospital
- Carmel
- Carmel
- Carmel
- Carmel Head
- Carmel Transmitting Station
- Carn Fadryn
- Carn Llidi
- Carnarvon Bay Light Vessel (historical)
- Carnedd Dafydd
- Carnedd y Filiast
- Carnedd Llewelyn
- Carnedd Moel-siabod
- Carnedd Ugain
- Carnedd Wen
- Carneddau
- Carnguwch
- Carnhedryn
- Carno
- Carreg Cennen Castle
- Carreg y Barcud
- Carreg Pumsant
- Carreghofa Castle
- Carreglefn
- Carrog
- Carrog
- Carway
- Cas Troggy Castle
- Cascob
- Casmael
- Castell
- Castell Aber Cafwy
- Castell Aberlleiniog
- Castell Abersoch
- Castell Bach
- Castell Blaenllynfi
- Castell Bryn Gwyn
- Castell Bugad
- Castell Cadwaladr
- Castell Caemaerdy
- Castell Caer Wedros
- Castell Caerwen
- Castell Carndochan
- Castell Cynfal
- Castell Cynon
- Castell Coch
- Castell Coch Golf Club
- Castell Cossan
- Castell Cottage
- Castell Crychydd
- Castell Crov
- Castell Crugerydd
- Castell Crwn
- Castell Cwm Aran
- Castell Cwmere
- Castell Dyffryn Mawr
- Castell Dinas
- Castell Dol Wllf
- Castell Du
- Castell Eglwyswrw
- Castell Fflemish
- Castell Foel Allt
- Castell Glas
- Castell Gronw
- Castell Gwallter
- Castell Gwarcwm
- Castell Gwyddgrug
- Castell Gwynionydd
- Castell Haidd
- Castell Hendre
- Castell Henllys
- Castell Hywel
- Castell y Bere
- Castell y Blaidd
- Castell y Domen
- Castell y Fran
- Castell y Rhingyll
- Castell y Waun Motte
- Castell Llainfawr
- Castell Llanddeiniolen
- Castell Llwyn Bedw
- Castell Llwyn Gwinau
- Castell Madoc Motte
- Castell Madoc Ringwork
- Castell Mael
- Castell Mawr
- Castell Meredydd
- Castell Meurig
- Castell Moch Fawr
- Castell Moeddyn Fach
- Castell Moel Motte
- Castell Nanhyfer
- Castell Nant y Garan
- Castell Nonni
- Castell Nos Motte
- Castell Olwen
- Castell Pant Y Fen
- Castell Pen yr Allt
- Castell Pencader
- Castell Pengawsai
- Castell Pistog
- Castell Placename
- Castell Poeth
- Castell Prin
- Castell Prysor
- Castell Rhosesmor
- Castell Tal y Fan
- Castell Taliorum
- Castell Tinboeth
- Castell Trefadog
- Castell Trefilan
- Castell Waun-Withan
- Castell Wladus
- Castle Arnold
- Castle Caereinion
- Castle Caereinion Motte
- Castle Caereinion Station
- Castle Community
- Castle Ely
- Castle Kinsey
- Castle near Penrhos Church
- Castle Nimble
- Castle Pill
- Castle Point
- Castle Tump
- Castle Villa
- Castlebythe
- Castlemartin
- Castlemartin Castle
- Castlemorris
- Castleton
- Castleton
- Caswell
- Catbrook
- Cathays
- Cathays Park
- Cathays Railway Station
- Cathedine
- Cefn
- Cefn Barn Ringwork
- Cefn Bryntalch Motte
- Cefn Coed Hospital
- Cefn Cribwr
- Cefn Du Motte
- Cefn Llech Enclosure
- Cefn Mawr
- Cefn-bychan
- Cefn-bryn-brain
- Cefn-coed-y-cymmer
- Cefn-y-bedd
- Cefn-y-Bedd Railway Station
- Cefn-y-pant
- Cefneithin
- Cefnllys Castle
- Cefnllys Old Castle
- Cefnmawr
- Cei Connah
- Ceinws
- Cellan
- Cemaes Bay
- Cemaes Head
- Cemlyn
- Cemmaes
- Cemmaes Road
- Cenarth
- Cerrigydrudion
- Ceunant
- Chepstow
- Chepstow Castle
- Chepstow Park Wood Earthwork
- Chepstow Racecourse
- Chepstow Railway Station
- Cheriton
- Cheriton
- Chester Street Mound
- Chirk
- Chirk Airfield
- Chirk Castle
- Chirk Castle
- Chirk Railway Station
- Christchurch
- Christchurch Radio Mast
- Christchurch Radio Tower
- Church Stoke
- Church Village
- Chwilog
- Cyffic
- Cyffylliog
- Cil Ifor Top
- Cilan
- Cilcain
- Cilcennin
- Cilfrew
- Cilgerran
- Cilgerran Castle
- Cilgwyn
- Ciliau-Aeron
- Cilybebyll
- Cilycwm
- Cilmery
- Cilmeri Railway Station
- Cilrhedyn
- Cilwhybert Motte
- Cymaron siege castles
- Cymau
- Cymer Abbey
- Cimla Hospital
- Cymmer
- Cymmer Castle
- Cynfal Halt
- Cynghordy
- Cynghordy Railway Station
- Cynheidre
- Cynonville
- Cynwyd
- Cynwyl Elfed
- Cyrn-y-Brain
- Clarbeston
- Clarbeston Road
- Clarbeston Road Railway Station
- Clatter
- Clawdd Poncen
- Clawdd-newydd
- Clawyd British Motte
- Clemenstone
- Clydach
- Clydach
- Clydach Vale
- Clydey
- Clyn Pattel Mound
- Clyne
- Clyne Castle
- Clynnog-fawr
- Clyro
- Clyro Castle
- Clocaenog
- Clogwyn Du’r Arddu
- Clogwyn Halt
- Clunderwen
- Clunderwen Railway Station
- Clwydian Range
- Clwt - y - bont
- Cnwch Coch
- Coed Allt y Tywood Mound
- Coed Caeau
- Coed Celyn Hospital
- Coed y Cra Uchaf Mound
- Coed y Cwm
- Coed y Fedw Tump
- Coed Ystumgwern
- Coed Maesnewyddon
- Coed Plasybtrithdir
- Coed Ty Mawr
- Coed-y-bryn
- Coed-y-glyn
- Coed-y-paen
- Coed-y-parc
- Coed-Talon
- Coedana
- Coedely
- Coedhirwaun
- Coedpoeth
- Coedway
- Coelbren
- Cogan
- Cogan Railway Station
- Coychurch
- Coity
- Coity Castle
- Coity Castle Seigeworks
- Coytrahên
- Colby Woodland Garden
- Colcot
- Cold Blow
- Collfryn Mound
- Colva
- Colwyn Bay
- Colwyn Bay Community Hospital
- Colwyn Bay Railway Station
- Colwyn Castle
- Colwinston
- Comins Coch
- Commins Coch
- Commodore cinema
- Connahs Hey Mound
- Connahs Quay
- Connahs Quay Nomads
- Connect Cardiff
- Constitution Hill
- Conwy
- Conwy & Denbighshire NHS Trust
- Conwy Castle
- Conwy Railway Station
- Conwy Suspension Bridge
- Coopers
- Coryton Railway Station
- Corntown
- Corris
- Corwen
- Corwen
- Cosheston
- Cosmeston Castle
- Cottrell Motte
- Counsel Tut
- County Hospital The
- Court Henry
- Cowbridge
- Crabtree Green
- Cradoc
- Cray
- Craig Bron-banog
- Craig y Llyn
- Craig yr Wylfa
- Craig Llysfaen
- Craig Ruperra Motte
- Craig-cefn-parc
- Craig-y-nôs Castle
- Cregrina
- Creigiau
- Creigiau Cliperau
- Creigiau Earthwork
- Cresselly
- Cresswell Quay
- Crewgreen
- Crib Goch
- Crib y Ddysgl
- Cribyn
- Criccieth
- Criccieth Beach
- Criccieth Castle
- Criccieth Railway Station
- Crick
- Crickadarn
- Crickadarn Ringwork
- Crickhowell
- Criggion
- Criggion VLF Transmitter
- Crymych
- Crynant
- Crinow
- Croes-goch
- Croes-lan
- Croeserw
- Croesyceilog
- Crofty
- Crogen Motte
- Cross Foxes
- Cross Hands
- Cross Inn
- Cross Inn
- Cross Inn
- Cross Lanes
- Crossgates
- Crosshands
- Crosskeys
- Crosskeys Railway Station
- Crossway
- Crosswell
- Crug Fâch
- Crug Gynon
- Crug y Whil
- Crugiau Edryd
- Crugyn Dimai
- Crugyn Tump
- Cruglas Mental Health Day Services
- Crumlin
- Crundale
- Crunwear
- Crwbin
- Cuckoo Wood
- Culver Hole
- Cwm
- Cwm
- Cwm Camlais Castle
- Cwm Clais
- Cwm Meurig Isaf
- Cwm Penmachno
- Cwm-coy
- Cwm-du
- Cwm-y-glo
- Cwm-y-glo
- Cwm-Llinau
- Cwm-nant-gwynt
- Cwm-pengraig
- Cwm-twrch Uchaf
- Cwmafan
- Cwmaman
- Cwmann
- Cwmavon
- Cwmbach
- Cwmbach
- Cwmbach Railway Station
- Cwmbran
- Cwmbran Railway Station
- Cwmbran Town
- Cwmbwrla
- Cwmcarn
- Cwmcarvan
- Cwmdare
- Cwmduad
- Cwmdwyfran
- Cwmfelin
- Cwmfelin Boeth
- Cwmfelin Mynach
- Cwmfelinfach
- Cwmffrwd
- Cwmgors
- Cwmgwili
- Cwmgwrach
- Cwmifor
- Cwmyoy
- Cwmisfael
- Cwmllynfell
- Cwmorgan
- Cwmparc
- Cwmpenanner
- Cwmsyfiog
- Cwrt y Gaer Ringwork
- Cwrt y Vil Castle
- Cwrt Llechrhyd
- Cwrt-newydd
- Day Hospital Princess Of Wales
- Dalaucothi
- Dale
- Dale
- Dale Castle
- Dale Point
- Dandderwen
- Danescourt Railway Station
- Danylan Mound
- Daren-felen
- Darland
- Darowen
- Ddol
- Dduallt Railway Station
- De Winton & Co
- Deep Lake
- Deepweir Tump
- Deeside
- Deeside
- Defynnog
- Degannwy Castle
- Deganwy
- Deganwy Railway Station
- Deiniolen
- Denbigh
- Denbigh Castle
- Denbigh Community Hospital
- Deri
- Derry-Ormond
- Derwen
- Derwen Gam
- Derwenlas
- Derwydd
- Devils Bridge
- Devils Bridge
- Devynock
- Dyffryn
- Dyffryn Ardudwy
- Dyffryn Ardudwy Railway Station
- Dyffryn Cellwen
- Dyffryn Clydach
- Dyffryn-castell
- Dihewid
- Dylife
- Dinas
- Dinas
- Dinas
- Dinas
- Dinas
- Dinas Bran Castle
- Dinas Dinlle
- Dinas Emrys Castle
- Dinas Head
- Dinas Island Castell
- Dinas Mawddwy
- Dinas Oleu
- Dinas Powys
- Dinas Powys
- Dinas Powys Castle
- Dinas Powys Golf Club
- Dinas Powys Railway Station
- Dinas Powys Ringwork
- Dinas Railway Station
- Dinas Rhondda Railway Station
- Dinefwr Castle
- Dinefwr Castle
- Dinerth Castle
- Dingestow
- Dingestow Castle
- Dingle Road Railway Station
- Dingstopple
- Dinham Castle
- Dinorben
- Dinorwic
- Diphwys
- Discoed
- Dyserth
- Dyserth Castle
- Dixton Motte
- Dobs Hill
- Docks
- Dol y Canney Mound
- Dolanog
- Dolau
- Dolau
- Dolau
- Dolau Railway Station
- Dolaucothi
- Dolbadarn Castle
- Dolbedwin Motte
- Dolbenmaen
- Dolbenmaen Castle
- Doldowlod House
- Dolforwyn Castle
- Dolgarrog
- Dolgarrog Railway Station
- Dolgellau
- Dolgoch
- Dolgoch Railway Station
- Dolgran
- Dolypandy
- Dolmelynllyn Estate
- Dolwyddelan
- Dolwyddelan Castle
- Dolwyddelan Railway Station
- Domen Castell
- Domen Ddreiniog
- Domen Fawr
- Domen Gastell
- Domen Las
- Dovey Junction Station
- Dowlais
- Downs
- Draethen
- Dre-fach
- Drefach
- Drefach
- Drefelin
- Drim Camp
- Drim Castle
- Dryslwyn
- Dryslwyn Castle
- Drury
- Duffryn
- Duffryn
- Duffryn
- Dulas
- Dunns Lane Motte
- Dunvant
- Dwygyfylchi
- Dwyran
- East Aberthaw
- East Breakwater
- East Orchard Castle
- East Platters
- East Williamston
- Eastbrook Railway Station
- Ebbw Vale
- Ebbw Vale Parkway Railway Station
- Ederyn
- Ednyfeds Castle
- Efail Isaf
- Efail-fâch
- Efailnewydd
- Efailwen
- Efenechtyd
- Eglwys Llanfihangel Abercowin
- Eglwys Nunydd
- Eglwys-Brewis
- Eglwys-Cymmyn
- Eglwys-fach
- Eglwys-Fâch
- Eglwyswrw
- Egryn Abbey
- Egwys Cross Motte
- Eisteddfa Gurig
- Elerch
- Ely
- Elidir Fawr
- Elim
- Erbistock
- Erddig
- Erddig Motte and Bailey Castle
- Eryri Hospital
- Eryrys
- Erwood
- Esgair
- Esgair-geiliog
- Evancoyd Mound
- Evanjobb Motte
- Evanstown
- Evenjobb
- Ewenny
- Ewloe
- Ewloe Castle
- Fach Goch Halt
- Fachwen
- Fairbourne
- Fairbourne
- Fairbourne Sands
- Fairwater Railway Station
- Fan Gihirych
- Farrar Road stadium
- Felin Cwrrws
- Felin Fach
- Felin Isaf Motte
- Felindre
- Felindre
- Felindre
- Felindre
- Felinfach
- Felinfoel
- Felingwmuchaf
- Fenns Bank Station
- Fens Moss
- Ferndale
- Fernhill Railway Station
- Ferryside
- Ferryside Railway Station
- Ferwig
- Ffair-fâch
- Ffair-Rhos
- Ffairfach Railway Station
- Ffald-y-Brenin
- Ffarmers
- Ffestiniog
- Ffestiniog Memorial Hospital
- Ffynnon-ddrain
- Ffynnongroyw
- Fforest
- Fforest Castle
- Fforest Fawr
- Fforest Wood Castle
- Ffos Las Racecourse
- Ffos-y-ffîn
- Ffostrasol
- Ffridd Uchaf
- Ffrith
- Ffrith
- Ffrith Beach Arena Park
- Fishguard
- Fishguard Harbour Railway Station
- Fishguard Port
- Five Roads
- Flemingston
- Fleur-de-lis
- Flimston
- Flint
- Flint Castle
- Flint Community Hospital
- Flint Railway Station
- Fochriw
- Foel
- Foel Cwmcerwyn
- Foel Fadian
- Foel Las Motte
- Foelgastell
- Folly
- Fonmon Castle
- Font-y-gary
- Ford
- Ford Motte
- Forden
- Forden Mediumwave Transmitter
- Forge
- Foryd
- Four Crosses
- Four Falls Trail
- Four Mile Bridge
- Four Roads
- Frank's Bridge
- Freystrop
- Freshwater East
- Fryars Bay
- Friog
- Fron
- Fron
- Froncysyllte
- Frongoch
- Furnace
- Gaer
- Gaer Noddfa
- Gaer-fawr
- Gaerwen
- Gallt - y - foel
- Ganllwyd
- Garden City
- Garn Coch Motte
- Garn Fawr Motte
- Garn Gron
- Garn y Castell Motte
- Garn-yr-erw
- Garnant
- Garndolbenmaen
- Garreg
- Garth
- Garth
- Garth
- Garth
- Garthbeibio
- Gartheli
- Garthmyl
- Gateholm Island
- Gegin
- Gelli
- Gelli Garn Castle
- Gelli Garn Ringwork
- Gellifor
- Gelligaer
- Gellilydan
- Gellinudd
- Gellywen
- Gibbons Down
- Gyfelia
- Gileston
- Gilfach Fargoed Railway Station
- Gilfach Goch
- Gilfachreda
- Giltar Point
- Gilwern
- Ginst Point
- Gyrngôch
- Gladestry
- Glais
- Glan Conwy Railway Station
- Glan Hafren Ringwork
- Glan Mynys Mount
- Glan-Dyfi Castle
- Glan-y-nant
- Glan-yr-afon
- Glan-yr-afon
- Glan-rhyd
- Glanamman
- Glandy Cross
- Glandwr
- Glandwr
- Glangrwyney
- Glanrafon
- Glanwydden
- Glasbury
- Glasbury Motte
- Glascoed
- Glascwm
- Glasinfryn
- Glyder Fâch
- Glyder Fawr
- Glyn Castle
- Glyn-Dyfrdwy
- Glyn-neath
- Glyncorrwg
- Glyndyfrdwy
- Glynfach Castle Placename
- Glynllan
- Glynneath
- Glynneath Inter Valley Rd
- Glynogwr
- Glogue
- Goginan
- Goytre
- Goitre Coed
- Goytre Wood Motte
- Goldcliff
- Golden Grove
- Goodwick
- Gored Gôch
- Gorof
- Gors-goch
- Gorsedd
- Gorseinon
- Gorsgoch
- Gorslas
- Govilon
- Gower
- Gowerton
- Gowerton Railway Station
- Grace Dieu Abbey
- Graianrhyd
- Graig Fawr
- Graig Foel
- Graig Penllyn
- Graig Wood
- Graig-fechan
- Grangemoor Park
- Grangetown Community
- Grangetown Railway Station
- Granston
- Grassholm Island
- Great Castle Head
- Great Castle Head
- Great Oak
- Great Orme Tramway, Summit Station
- Great Orme Tramway, Victoria Station
- Great Ormes Head
- Great Ormes Head Lighthouse (historical)
- Great Rudbaxton Mount
- Green
- Green Scar
- Greenfield
- Greenfields
- Greenmeadows Flats
- Grey
- Greynor
- Gresford
- Griffithstown
- Gro Tump Motte
- Groes
- Groes-faen
- Groesffordd
- Groesffordd
- Groesffordd Marli
- Groeslon
- Groeslon
- Groeswen Hospital
- Gronant
- Grosmont
- Grovesend
- Grugyn Llawr Llan Mound
- Guanceste
- Guilsfield
- Gumfreston
- Gurnos
- Gwaelod-y-garth
- Gwaenysgor
- Gwaynynog
- Gwalchmai
- Gwaun-Cae-Gurwen
- Gwbert
- Gwehelog Common
- Gwenddwr
- Gwent Health Care NHS Trust
- Gwenthriew Enclosure
- Gwerclas
- Gwern y Domen
- Gwernaffield-y-Waun
- Gwernymynydd
- Gwernogle
- Gwersyllt
- Gwersyllt Railway Station
- Gwespyr
- Gwyddelwern
- Gwyddgrug
- Gwydir
- Gwydir Castle
- Gwydyr Forest
- Gwynedd Hospital
- Gwynfryn
- Gwytherin
- Gwredog
- H M Stanley Hospital
- Hadfield Road Mediumwave Transmitter
- Hafod y Bwch
- Hafod-uchtryd
- Hafodyrynys
- Hay
- Hay Castle
- Hay Tump
- Hay-on-Wye
- Hayscastle
- Hayscastle Cross
- Halfway
- Halkyn
- Halkyn Mountain
- Hanmer
- Harlech
- Harlech Castle
- Harlech Point
- Harlech Railway Station
- Haroldston West
- Haverfordwest
- Haverfordwest Airport
- Haverfordwest Castle
- Haverfordwest County
- Haverfordwest Railway Station
- Haverfordwest Transmitting Station
- Hawarden
- Hawarden
- Hawarden Bridge Railway Station
- Hawarden Castle
- Hawarden Railway Station
- Hawen
- Heath
- Heath High Level Railway Station
- Heath Low Level Railway Station
- Hebron
- Helwick Lightvessel (historical)
- Hen Blas
- Hen Caerau
- Hen Domen
- Hen Gastell
- Hendy
- Hendy Castle
- Hendy Halt
- Hendy-Gwyn
- Hendom Mound
- Hendomen
- Hendre Hafaidd Ringwork
- Hendre Isaf Motte
- Hendreforgan
- Henfynyw Upper
- Hengoed
- Hengoed Railway Station
- Henllan
- Henllan
- Henllan Amgoed
- Henry’s Moat
- Hensol
- Hensol Castle
- Heol-ddu
- Heol-y-Cyw
- Herbrandston
- Hermon
- Hermon
- Hermon
- Higher Kinnerton
- Highgate
- Hill
- Hill Mountain
- Hiraethlyn
- Hirnant
- Hirwaun
- Hyssington
- Hyssington Castle
- Hodgeston
- Hoel-galed
- Holy Island
- Holyhead
- Holyhead
- Holyhead Breakwater Lighthouse
- Holyhead Marina
- Holyhead Mountain
- Holyhead Port
- Holyhead Railway Station
- Holywell
- Holywell Castle Mound
- Holywell Community Hospital
- Hollybush
- Holt
- Holt Castle
- Hook
- Hook Tump
- Hope
- Hope and Pen-y-ffordd Station
- Hope Railway Station
- Horeb
- Horseman's Green
- Horton
- Hospital Management Trust
- Houghton
- Howe Mill Enclosure
- Howey
- Howells Castle
- Hubberston
- Hughs Castle
- Hundleton
- Hundred House
- Huntington
Kārdifa- Keeston
- Kemeys House
- Kemeys Inferior
- Kemeys Inferior Motte
- Kenfig
- Kenfig Castle
- Kenfig Hill
- Kerry
- Kerry Hill
- Kidwelly
- Kidwelly Castle
- Kidwelly Railway Station
- Kilgetty
- Kilgetty Railway Station
- Killay
- Kymin
- Kingcoed
- Kingsmoor
- Kinmel
- Kinmel Bay
- Kinnerton
- Kinnerton Court Motte
- Kittle
- Kittle Top
- Knapp Farm Mound
- Knelston
- Knighton
- Knighton Castle Mount
- Knucklas
- Knucklas Castle
- Knucklas Railway Station
- Ladys Mount
- Laleston
- Lambston
- Lampeter
- Lampeter Velfrey
- Lamphey
- Lamphey Railway Station
- Landimore
- Landore
- Landshipping
- Langstone
- Langstone Court Motte
- Larches Community Mental Health Centre The
- Latham Park
- Laugharne
- Laugharne Castle
- Lavernock
- Lavernock Point
- Lavister
- Lawrenny
- Leason
- Leckwith
- Leeswood
- Leeswood Hall Mound
- Leighton
- Letterston
- Leweston
- Lewistown
- Liberty Stadium
- Lydstep
- Lydstep Beach
- Liege Castle
- Linney Head
- Lisvane
- Lisvane And Thornhill Railway Station
- Little Haven
- Little Mancot
- Little Mill
- Little Mountain
- Little Newcastle
- Little Ormes Head
- Lixwm
- Llay
- Llan
- Llan Ffestiniog
- Llan-fair
- Llan-non
- Llanaber
- Llanaber Railway Station
- Llanaelhaiarn
- Llanafan
- Llanafan-fawr
- Llanallgo
- Llananno
- Llanarmon
- Llanarmon Dyffryn-Ceiriog
- Llanarmon-yn-Ial
- Llanarmon-Mynydd-mawr
- Llanarth
- Llanarth
- Llanarthne
- Llanasa
- Llanbabo
- Llanbadarn
- Llanbadarn Church
- Llanbadarn-fawr
- Llanbadarn-fawr
- Llanbadarn-fynydd
- Llanbadoc
- Llanbadrig
- Llanbedr
- Llanbedr
- Llanbedr
- Llanbedr Airport
- Llanbedr Railway Station
- Llanbedr-Dyffryn-Clwyd
- Llanbedr-y-cennin
- Llanbedrgoch
- Llanbedrog
- Llanberis
- Llanberis
- Llanbethêry
- Llanbister
- Llanbister Road Station
- Llanboidy
- Llanbradach
- Llanbradach Railway Station
- Llanbrynmair
- Llancayo
- Llancarfan
- Llancynfelyn
- Llandaf Railway Station
- Llandaff
- Llandanwg
- Llandanwg Railway Station
- Llandarcy
- Llandawke
- Llanddarog
- Llanddeiniol
- Llandderfel
- Llanddeusant
- Llanddeusant
- Llanddeusant
- Llanddew
- Llanddew Palace
- Llanddewi
- Llanddewi Ystradenny
- Llanddewi Rhydderch
- Llanddewi Velfrey
- Llanddewi-Brefi
- Llanddyfnan
- Llanddoget
- Llanddona
- Llanddowror
- Llanddowror Motte
- Llanddulas
- Llanddwyn Island
- Llanddwywe
- Llandecwyn
- Llandecwyn Railway Station
- Llandefaelog
- Llandefaelog Fach Motte
- Llandefaelogfâch
- Llandefalle
- Llandegai
- Llandegfan
- Llandegla
- Llandegley
- Llandegveth
- Llandegwning
- Llandeilo
- Llandeilo Abercywyn
- Llandeilo Railway Station
- Llandeilor-Fan
- Llandelio Graben Motte
- Llandeloy
- Llandenny
- Llandevaud
- Llandybie
- Llandybie Railway Station
- Llandyfrydog
- Llandygwydd
- Llandinam
- Llandyry
- Llandyrnog
- Llandysilio
- Llandyssil
- Llandyssil Bridge Mound
- Llandissilio
- Llandyssiliogogo
- Llandysul
- Llandysul Church
- Llandysul memorial Hall
- Llandogo
- Llandough
- Llandough Castle
- Llandough Hospital N H S Trust
- Llandovery
- Llandovery Castle
- Llandovery Hospital
- Llandovery Railway Station
- Llandow
- Llandow Castle
- Llandre
- Llandre Egremont
- Llandrillo
- Llandrillo-yn-Rhôs
- Llandrindod Railway Station
- Llandrindod Wells
- Llandrindod Wells Mediumwave Transmitter, Mast Northeast
- Llandrindod Wells Mediumwave Transmitter, Mast Southwest
- Llandrindod Wells War Memorial Hospital
- Llandrinio
- Llandudno
- Llandudno Junction
- Llandudno Junction Railway Station
- Llandudno Pier
- Llandudno Pier Pavilion Theatre Ruins
- Llandudno Railway Station
- Llandudwen
- Llandwrog
- Llanedeyrn Village
- Llanedy
- Llanedwen
- Llanegryn
- Llanegwad
- Llaneilian
- Llanelian-yn-Rhôs
- Llanelidan
- Llanellen
- Llanelli
- Llanelli FC
- Llanelli Old Castle
- Llanelli Railway Station
- Llanelltyd
- Llanenddwyn
- Llanengan
- Llanerch-Aeron
- Llanerchymedd
- Llanerfyl
- Llanfachraeth
- Llanfachreth
- Llanfaelog
- Llanfaelrhys
- Llanfaenor
- Llanfaes
- Llanfaethlu
- Llanfaglan
- Llanfair
- Llanfair Caereinion
- Llanfair Caereinion Station
- Llanfair Clydogau
- Llanfair Discoed Castle
- Llanfair Kilgeddin
- Llanfair Talhaiarn
- Llanfair-ar-y-bryn
- Llanfair-Dyffryn-Clwyd
- Llanfair-yng-Nghornwy
- Llanfairfechan
- Llanfairfechan Railway Station
- Llanfairpwll Railway Station
- Llanfairpwllgwyngyll
- Llanfallteg
- Llanfallteg West
- Llanfaredd
- Llanfechain
- Llanfechell
- Llanferres
- Llanfflewyn
- Llanfihangel Bachellaeth
- Llanfihangel yn Nhowyn
- Llanfihangel Rhydithon
- Llanfihangel Rogiet
- Llanfihangel Tal-y-llyn
- Llanfihangel-ar-Arth
- Llanfihangel-Bryn-Pabuan
- Llanfihangel-geneu’r-glyn
- Llanfihangel-Glyn-Myfyr
- Llanfihangel-y-creuddyn
- Llanfihangel-y-pennant
- Llanfihangel-y-Pennant
- Llanfihangel-yng-Ngwynfa
- Llanfihangel-Ystrad
- Llanfihangel-Nant-Brân
- Llanfihangel-nant-Melan
- Llanfihangel-Rhos-y-corn
- Llanfihangel-ty’n-Sylwy
- Llanfihangel-uwch-Gwili
- Llanfyllin
- Llanfilo
- Llanfynydd
- Llanfynydd
- Llanfyrnach
- Llanfyrnach Motte
- Llanfoist
- Llanfor
- Llanfrechfa
- Llanfrynach
- Llanfrothen
- Llanfugail
- Llanfwrog
- Llanfwrog
- Llangadfan
- Llangadfan Motte
- Llangadog
- Llangadog Railway Station
- Llangadwaladr
- Llangadwaladr
- Llangaffo
- Llangain
- Llangammarch Railway Station
- Llangammarch Wells
- Llangan
- Llangathen
- Llangathen Castle
- Llangattock
- Llangattock Lingoed
- Llangattock nigh Usk
- Llangedwyn
- Llangefni
- Llangeinor
- Llangeitho
- Llangeler
- Llangelynin
- Llangelynin
- Llangendeirne
- Llangennech
- Llangennech Railway Station
- Llangenny
- Llangennith
- Llangernyw
- Llangewydd
- Llangian
- Llangibby Castle
- Llangibby Motte
- Llangybi
- Llangybi
- Llangybi
- Llangynhafal
- Llangynidr
- Llangyniew
- Llangynin
- Llangynllo
- Llangynllo Railway Station
- Llangynog
- Llangynog
- Llangynog
- Llangynwyd
- Llangynwyd Castle
- Llangiwg
- Llanglydwen
- Llangoed
- Llangoedmor
- Llangollen
- Llangollen Community Hospital
- Llangollen Station
- Llangolman
- Llangorse
- Llangorwen
- Llangower
- Llangower
- Llangrannog's Beach
- Llangranog
- Llangristiolus
- Llangunllo
- Llangunnor
- Llangurig
- Llangwathen Motte
- Llangwyllog
- Llangwyryfon
- Llangwm
- Llangwm
- Llangwm
- Llangwm Isaf
- Llangwnadl
- Llanhamlach
- Llanharan
- Llanharan Railway Station
- Llanharry
- Llanhilleth
- Llanhilleth Railway Station
- Llanhowell
- Llanybydder
- Llanybri
- Llanycefn
- Llanychaer
- Llanychaiarn
- Llanycil
- Llanycrwys
- Llanidan House
- Llanidloes
- Llanidloes Castle
- Llanidloes War Memorial Hospital
- Llanigon
- Llanilar
- Llanilid Castle
- Llanymawddwy
- Llanymynech
- Llanina
- Llanyrafon Golf Course
- Llanyre
- Llanishen
- Llanishen
- Llanishen Golf Club
- Llanishen Railway Station
- Llanystumdwy
- Llanllawddog
- Llanllawer
- Llanllechid
- Llanlleiana Head
- Llanllyfni
- Llanllyr Priory
- Llanllowell
- Llanllugan
- Llanllugan Abbey
- Llanllwch
- Llanllwchaiarn
- Llanllwni
- Llanllwni Mount
- Llanmadoc
- Llanmaes
- Llanmartin
- Llanmelin Wood Lesser Enclosure
- Llanmiloe
- Llanmorlais
- Llannefydd
- Llannerch-y-môr
- Llannon
- Llannor
- Llanover
- Llanpumsaint
- Llanquian Castle
- Llanreithan
- Llanrhaeadr-ym-Mochnant
- Llanrhaiadr
- Llanrhaiadr-ym-Mochnant
- Llanrhian
- Llanrhyddlad
- Llanrhidian
- Llanrhystud
- Llanrhuddlad
- Llanrhwydrys
- Llanrug
- Llanrumney Community
- Llanrwst
- Llanrwst Railway Station
- Llansadurnen
- Llansadwrn
- Llansadwrn
- Llansaint
- Llansaintfraed in Elvel
- Llansamlet Community
- Llansamlet Railway Station
- Llansannan
- Llansantffraed-Cwmdeuddwr
- Llansantffraid
- Llansantffraid Glan Conwy
- Llansantffraid Glyn Ceiriog
- Llansantffraid-ym-Mechain
- Llansantffread
- Llansawel
- Llansilin
- Llansoy
- Llanspyddid
- Llanstadwell
- Llansteffan
- Llansteffan Castle
- Llanstephan
- Llanstinan
- Llantarnam
- Llantarnam Abbey
- Llanteg
- Llanthomas Motte
- Llanthony
- Llantilio Crossenny
- Llantysilio
- Llantysilio Mountain
- Llantood
- Llantrisant
- Llantrisant
- Llantrisant
- Llantrisant Castle
- Llantrisant Forest
- Llantrithyd Camp
- Llantrithyd Ringwork
- Llantwit Fardre
- Llantwit Major
- Llantwit Major Railway Station
- Llanuwchllyn
- Llanuwchllyn
- Llanvaches
- Llanvaches Castle
- Llanvair Discoed
- Llanvapley
- Llanvetherine
- Llanvihangel Crucorney
- Llanwddyn
- Llanwenarth
- Llanwenog
- Llanwern
- Llanwern Golf Club
- Llanwinio
- Llanwnda
- Llanwnda
- Llanwnen
- Llanwnog
- Llanwonno
- Llanwrda
- Llanwrda Railway Station
- Llanwrin
- Llanwrthwl
- Llanwrtyd
- Llanwrtyd Railway Station
- Llanwrtyd Wells
- Llawhaden
- Llawhaden Castle
- Llawr-y-glyn
- Lle'r Prior Earthwork
- Llechryd
- Llechryd Earthwork
- Lledrod
- Lleyn Peninsula
- Lleiniog near Penmon
- Llidiart-y-Parc
- Llyn Gwyn Enclosure
- Llynfaes
- Llys Dulas
- Llys Gwenllian
- Llysfaen
- Llyssun Motte
- Llyswen
- Llysworney
- Llithfaen
- Llywel
- Lloc
- Llong
- Llowes
- Llowes Castle Tump
- Lluesty Hospital
- Llwydcoed
- Llwydiarth Park
- Llwyn-Dafydd
- Llwyn-hudol
- Llwyn-y-brain
- Llwyn-y-groes
- Llwyncelyn
- Llwyncelyn
- Llwyncelyn
- Llwynduris Castle Mound
- Llwyneryr Hospital
- Llwyngwril
- Llwyngwril Railway Station
- Llwynypia
- Llwynypia Hospital
- Llwynypia Railway Station
- Llwynmawr
- Login
- Lon y Felin
- Long House
- Long Mountain
- Loughor
- Loughor Castle
- Loveston
- Lower Chapel
- Lower Clapton
- Lower Fawnog Mound
- Lower Min y Llyn Motte
- Ludchurch
- Machen
- Machynys
- Machynlleth
- Machynlleth Railway Station
- Machroes
- Madocs Castle
- Maen-y-groes
- Maenan Abbey
- Maenclochog
- Maendy
- Maentwrog
- Maerdy
- Maerdy
- Maes Celyn Motte
- Maes Gwyn
- Maes y Castell
- Maes Mynan Mound
- Maes Tegid
- Maes-bangor
- Maes-y-crugiau
- Maesgwyn mound
- Maeshafn
- Maesybont
- Maesycwmmer
- Maesygwartha
- Maesmynis
- Maesmor Hall Castle Mound
- Maesteg
- Maesteg Ewenny Road Railway Station
- Maesteg Railway Station
- Magor
- Maiden Wells
- Maindee Camp
- Maindiff Court Hospital
- Malefant Castle
- Malltraeth
- Mallwyd
- Mamhilad
- Manafon
- Manafon Motte
- Mancot Royal
- Manian Fawr
- Manorbier
- Manorbier Beach
- Manorbier Castle
- Manorbier Railway Station
- Manordeifi
- Manorowen
- Manselfield
- Manson
- Marble Church
- Marchwiel
- Marcross
- Marcross Castle
- Margam
- Margam Abbey
- Margam Knuckle Yard
- Marian
- Marianglas
- Markham
- Marloes
- Marros
- Marshfield
- Martletwy
- Martletwy
- Mascle Bridge
- Mathern
- Mathrafal Castle
- Mathry
- Mawdlam
- Meidrim
- Meifod
- Meyllteyrn
- Meinciau
- Meliden
- Melin-y-coed
- Melincourt
- Menai Bridge
- Merlin's Bridge
- Merrion
- Merthyr
- Merthyr Cynog
- Merthyr Dyfan
- Merthyr Mawr
- Merthyr Tewdrig
- Merthyr Tydfil
- Merthyr Tydfil Railway Station
- Merthyr Vale
- Merthyr Vale Railway Station
- Michaelston-le-Pit
- Myddfai
- Middle Mill
- Middle Mouse
- Middlecross Ringwork
- Middleton
- Middletown
- Midland Isle
- Mydroilin
- Milford Haven
- Milford Haven Railway Station
- Mill Wood Motte
- Millennium Stadium
- Milo
- Milton
- Mynachlogddu
- Minera
- Minffordd
- Minffordd Ffestiniog Railway Station
- Minffordd Hendrewen
- Minffordd Railway Station
- Mynydd Bach
- Mynydd Baedan
- Mynydd Cerrig
- Mynydd Cilciffeth
- Mynydd Eppynt
- Mynydd Figyn
- Mynydd Gartheiniog
- Mynydd Graig Goch
- Mynydd y Garn
- Mynydd Isa
- Mynydd Llanbyther
- Mynydd Llandegai
- Mynydd Llangynidr
- Mynydd Marian
- Mynydd Mawr Hospital
- Mynydd Mechell
- Mynydd Merthyr
- Mynydd Morvil
- Mynydd Pen-bre
- Mynydd Pencarreg
- Mynydd Preseli
- Mynydd Rhiw
- Mynydd Tarw
- Mynydd-bach
- Mynydd-Bach Tirdeunaw Close
- Mynyddbach Community
- Mynyddygarreg
- Mynyddislwyn
- Mynytho
- Minllyn
- Minwear
- Minwear Ringwork
- Miskin
- Mitchel Troy
- Mitcheltroy Common
- Mochdre
- Mochdre
- Mochras Point
- Moel Arthur
- Moel Berfedd
- Moel Fammau
- Moel Fferna
- Moel Hebog
- Moel y Llyn
- Moel Llys-y-coed
- Moel Part mound
- Moel Seisiog
- Moel Sych
- Moel Tryfan
- Moel-y-Parc Transmitting Station
- Moel-tryfan
- Moelfre
- Moelfre
- Moelfre-Uchaf
- Moelwyn Bach
- Moelwyn Mawr
- Moylgrove
- Mold
- Monington
- Monknash
- Monkstone
- Monkstone Point
- Monkswood
- Monmouth
- Monmouth Castle
- Montgomery
- Montgomery Castle
- Montgomery County Infirmary
- Morfa
- Morfa
- Morfa Bach
- Morfa Bychan
- Morfa Mawddach
- Morfa Nefyn
- Morganstown Motte
- Morgraig Castle
- Morlais Castle
- Morriston
- Morvil
- Mostyn
- Mount Vernon Motte
- Mountain Ash
- Mountain Ash Railway Station
- Mountyborough
- Mumbles
- Mumbles Head
- Mumbles Lighthouse
- Mumbles Pier
- Murton
- Mwdwl-eithin
- Mwnt beach
- Nannerch
- Nant Fagl Mound
- Nant Gwernol Railway Station
- Nant Gwynant
- Nant Y Baedd Mound
- Nant Peris
- Nant-y-bwch
- Nant-y-cafn
- Nant-y-moel
- Nant-y-Patrick
- Nantclwyd Hall
- Nantcribba Castle
- Nantcwnlle
- Nantgaredig
- Nantgarw
- Nantglyn
- Nantycaws
- Nantyglo
- Nantyronen
- Nantlle
- Nantmel
- Nantmel Castle
- Nantmor
- Nantperchellan
- Narberth
- Narberth Castle
- Narberth Railway Station
- Narrow Gauge Railway Museum
- Nasareth
- Nash
- Nash Point
- Nash Point High Lighthouse
- Nash Point Low Lighthouse
- National Botanic Garden of Wales
- National Library of Wales
- National Showcaves Centre for Wales
- National Slate Museum
- Natural Arch
- Neath
- Neath Abbey
- Neath Abbey (Neath, Wales)
- Neath Castle
- Neath DWR-Y-Felin Rd
- Neath General Hospital
- Nebo
- Nebo
- Nefyn
- Nefyn
- Neyland
- Nells Point
- Nelson
- Nerquis
- Neuadd
- Neuadd Goch Motte
- Neuadd Wen Mound
- Nevern
- Nevill Hall Hospital
- New Bridge
- New Brighton
- New Broughton
- New Hedges
- New Inn
- New Inn
- New Moat
- New Moat Motte
- New Park
- New Quay
- New Quay Church
- New Quay Head
- New Quay lifeboat station
- New Radnor
- New Radnor Castle
- New Town
- New Tredegar
- Newborough
- Newbridge
- Newbridge
- Newbridge on Wye
- Newbridge Railway Station
- Newcastle
- Newcastle
- Newcastle Bridgend Castle
- Newcastle Emlyn
- Newcastle Emlyn Castle
- Newchapel
- Newchurch
- Newchurch
- Newgale
- NEWI Cefn Druids
- Newmarket
- Newport
- Newport
- Newport
- Newport Castle
- Newport Golf Club
- Newport Old Castle
- Newport Railway Station
- Newport Stadium
- Newport Transporter Bridge
- Newton
- Newton Mount Meadow
- Newton Mountain
- Newtown
- Newtown Hall Motte
- Newtown Mediumwave Transmitter
- Newtown Railway Station
- Nicholaston
- Ninewells Wood
- Ninian Park Railway Station
- Nolton
- Norchard
- Norchard
- North Cornelly
- North Hill Tor
- North Llanrwst Railway Station
- North Park Estate
- North Stack
- North Wales Medical Centre
- North West Wales NHS Trust
- Northop
- Northop Hall
- Norton
- Norton Camp
- Norton Motte
- Nottage
- NW Light Vessel (historical)
- Oakdale
- Oakford
- Oakley Arms
- Ogmore
- Ogmore Castle
- Ogmore Forest
- Ogmore Vale
- Ogmore-by-Sea
- Oystermouth
- Oystermouth Castle
- Old Beaupre Castle
- Old Castle Head
- Old Castle upon Alun
- Old College, University of Wales, Aberystwyth
- Old Colwyn
- Old Hall Camp
- Old Park wood
- Old Radnor
- Old Radnor Castle
- Old Warren
- Oldcastle
- Oldcastle
- Onllwyn
- Overton
- Owain Glyndwrs Mount
- Oxwich
- Oxwich Castle
- Oxwich Point
- Padeswood
- Padeswood Mound
- Painscastle
- Painscastle
- Pale
- Palmerstown
- Pancross
- Pandy
- Pandy
- Pant y Cadno
- Pant y colin
- Pant-y-dwr
- Pant-y-ffynnon
- Pant-yr-Awel
- Pantasaph
- Panteg
- Pantglas Hall
- Pantycaregl
- Pantyffynnon Railway Station
- Pantymwyn
- Paradwys
- Parc
- Parc Castell
- Parc Henbias
- Parc y Castell
- Parc y Domen Issa
- Parc y Marl Rath
- Parc Seymour
- Parcllyn
- Parys Mountain
- Park Avenue Stadium
- Park Farm (Historical)
- Park Mill
- Parkmill
- Part-y-Seal
- Partrishow
- Pass of Aber-Glaslyn
- Pass of Llanberis
- Paterchurch Tower
- Pelcomb Cross
- Pembrey
- Pembrey Airport
- Pembrey And Burry Port Railway Station
- Pembrey Forest
- Pembrey Sands
- Pembroke
- Pembroke Castle
- Pembroke Dock
- Pembroke Dock Railway Station
- Pembroke Port
- Pembroke Railway Station
- Pembrokeshire Coast National Park
- Pen Benar
- Pen Bwch Point
- Pen Caer
- Pen Dal-Aderyn
- Pen y Beacon
- Pen y bylchau
- Pen y Castell
- Pen y Cil
- Pen y Clawdd
- Pen y Clawdd Castle
- Pen y Cnap
- Pen y Gader-fawr
- Pen Llys Ringwork
- Pen Llithrig y Wrach
- Pen Rhiw Prioty
- Pen Sarn Earthwork
- Pen Trwyn
- Pen-bont Rhydybeddau
- Pen-clawdd
- Pen-y-banc
- Pen-y-bont
- Pen-y-Bont Railway Station
- Pen-y-bont-fawr
- Pen-y-bryn
- Pen-y-cae
- Pen-y-cae
- Pen-y-coedcae
- Pen-y-fai
- Pen-y-ffordd
- Pen-y-garn
- Pen-y-groes
- Pen-y-lan
- Pen-y-mynydd
- Pen-y-parc
- Pen-y-stryt
- Pen-ychain
- Pen-Llyn
- Pen-pedair-heol
- Pen-pergwm
- Pen-Rhiw-fawr
- Pen-rhôs
- Pen-twyn
- Pen-tŵyn
- Pen-uchar llan
- Penally
- Penally Abbey
- Penally Railway Station
- Penallt
- Penarth
- Penarth Head
- Penarth Motte
- Penarth Railway Station
- Penboyr
- Penbryn
- Penbwchdy
- Pencader
- Pencaenewydd
- Pencarnisiog
- Pencarreg
- Pencastell
- Pencelli
- Pencelli Castle
- Penclegyr
- Pencoed
- Pencoed Castle
- Pencoed Railway Station
- Pencribach
- Penderyn
- Pendinas
- Pendinas
- Pendine
- Pendoylan
- Pendre Railway Station
- Penegoes
- Penffordd
- Pengam
- Pengam
- Pengam Railway Station
- Penglais Campus, University of Wales, Aberystwyth
- Pengorffwysfa
- Pengwern
- Penhelig Railway Station
- Penhow
- Penhow Castle
- Penybanc
- Penybont
- Penybryn
- Penycastell
- Penychain Railway Station
- Penycwm
- Peniel
- Penyffordd
- Penygader
- Penygroes
- Penisa'r Waun
- Penysarn
- Penywaun
- Penlan Mound
- Penley
- Penllech
- Penllechwen
- Penller Castell
- Penllergaer
- Penllyn
- Penllyn Castle
- Penllwyn
- Penmachno
- Penmaen
- Penmaen Burrows Ringwork
- Penmaen-bach Point
- Penmaenmawr
- Penmaenmawr Railway Station
- Penmark
- Penmark Castle
- Penmynydd
- Penmon
- Penmon Lighthouse
- Penmon Mediumwave Transmitter
- Penmorfa
- Pennal
- Pennant
- Pennant
- Pennant-Melangell
- Pennard
- Pennard Castle
- Pennorth
- Penparc
- Penparcau
- Penparcau memorial hall
- Penperlleni
- Penpleidiau
- Penrhyn Bay
- Penrhyn Castle
- Penrhyn Mawr
- Penrhyn Railway Station
- Penrhyn-coch
- Penrhyn-side
- Penrhyndeudraeth
- Penrhyndeudraeth Railway Station
- Penrhyndeudreath
- Penrhys
- Penrhiw-llan
- Penrhiwceiber Railway Station
- Penrhos
- Penrhôs
- Penrhos Castle
- Penrhos-Lligwy
- Penrice
- Penrice Castle
- Penrydd
- Pensarn
- Pensarn Railway Station
- Penteg Motte
- Pentir
- Pentyrch
- Pentlepoir
- Pentraeth
- Pentre
- Pentre
- Pentre
- Pentre
- Pentre Berw
- Pentre Du
- Pentre Galar
- Pentre Halkyn
- Pentre Maelor
- Pentre-bâch
- Pentre-bach Railway Station
- Pentre-briwnant
- Pentre-cwrt
- Pentre-Foelas
- Pentre-Gwenlais
- Pentre-Llanrhaeadr
- Pentre-llyn
- Pentre-Morgan
- Pentrebach
- Pentrecagal
- Pentrefelin
- Pentrefelin
- Pentrefelin
- Pentrellwyn
- Pentwyn Crumlin
- Penuwch
- Peterston Castle
- Peterston-super-Ely
- Peterstone Wentlooge
- Picton Castle
- Picton Motte
- Pier Camp
- Pyle
- Pyle
- Pyle Railway Station
- Pipton Tower
- Pistyll
- Plas Baglan
- Plas Cadwgan Mound
- Plas Halt Railway Station
- Plas yn Dinas
- Plas yn Rhiw
- Plas Madoc
- Plas Newydd
- Plâs Power
- Plâs-Llanrhydd
- Plasnewyd
- Pleasant Valley
- Plynlimon Fawr
- Plwmp
- Point Lynas
- Point Lynas Lighthouse
- Point of Ayr
- Pointz Castle
- Pont Croesor
- Pont Estyll Ringwork
- Pont Henri
- Pont Hirwaun
- Pont Lanio
- Pont Mathrafal Mound
- Pont Newydd
- Pont Pen - y - benglog
- Pont Rhyd-y-cyff
- Pont Sticill
- Pont-ar-gothi
- Pont-y-pant Station
- Pont-y-rhyl
- Pont-yr-hafod
- Pont-rhyd-y-groes
- Pont-Robert
- Pont-Siân
- Pont-Tyweli
- Pontantwn
- Pontardawe
- Pontardawe Alltwen Hill
- Pontarddulais
- Pontarddulais Railway Station
- Pontarsais
- Pontblyddyn
- Pontcanna
- Ponterwyd
- Pontfadog
- Pontfaen
- Pontgarreg
- Ponthir
- Pontyates
- Pontyberem
- Pontybodkin
- Pontycymer
- Pontyclefton
- Pontyclun
- Pontyclun Railway Station
- Pontygwaith
- Pontymister
- Pontypool
- Pontypool And New Inn Railway Station
- Pontypool Park
- Pontypridd
- Pontypridd & Rhondda NHS Trust
- Pontypridd Railway Station
- Pontywaun
- Pontllanfraith
- Pontllyfni
- Pontlliw
- Pontlottyn
- Pontlottyn Railway Station
- Pontneddfechan
- Pontnewydd
- Pontnewydd Golf Club
- Pontnewynydd
- Pontrhydfendigaid
- Pontrhydyfen
- Pool Quay
- Poppit Sands
- Port Dinorwic
- Port Lion
- Port Talbot
- Port Talbot General Hospital
- Port Talbot Parkway Railway Station
- Port Tennant
- Port Tennant 7 Ysgol St
- Port-Eynon
- Port-Eynon Point
- Portfield Gate
- Porth
- Porth Railway Station
- Porth Swtan
- Porth Towyn Beach
- Porth-y-rhyd
- Porthamal Tower
- Porthcawl
- Porthdinllaen
- Porthgain
- Porthyrhyd
- Porthkerry
- Porthlisky Beach
- Porthmadog
- Porthmadog
- Porthmadog Harbour Railway Station
- Porthmadog Railway Station
- Portmeirion
- Portskewett
- Powis Castle
- Pren-gwyn
- Prenteg
- Presely Transmitting Station
- Prestatyn
- Prestatyn Castle
- Prestatyn Community
- Prestatyn Railway Station
- Presteigne
- Price Town
- Prince Philip Hospital
- Princess Of Wales Hospital
- Priory Farm House
- Puffin Island
- Pumpsaint
- Puncheston
- Pwll
- Pwll-glâs
- Pwll-trap
- Pwllcrochan
- Pwlldu Head
- Pwllheli
- Pwllheli Railway Station
- Pwllmeyric
- Quay Street
- Quakers Yard
- Quakers Yard Railway Station
- Quarry Siding Halt
- Queen Alexandra Lock
- Queensferry
- R Efail Estate
- Racecourse Ground
- Rachub
- Radyr
- Radyr Railway Station
- RAF St Davids
- RAF Templeton
- Raglan
- Raglan Castle
- Raglan Parc Golf Club
- Ragwen Point
- Ram
- Ramsey Island
- Red Castle
- Red Roses
- Red Wharf Bay
- Redberth
- Redwick
- Reynalton
- Reynoldston
- Reynoldston Camp
- Resolven
- Rhayader
- Rhayader
- Rhayader Castle
- Rhandirmwyn
- Rheidol Falls
- Rhes-y-cae
- Rhewl
- Rhyd Ddu Railway Station
- Rhyd yr Onen Moat
- Rhyd Lewis
- Rhyd Owen
- Rhyd-cymmerau
- Rhyd-Ddu
- Rhyd-y-clafdy
- Rhyd-y-felin
- Rhyd-y-foel
- Rhyd-y-gwin
- Rhyd-wyn
- Rhydargaeau
- Rhydd Hywel
- Rhydymain
- Rhydymeudwy
- Rhydymwyn
- Rhydypennau
- Rhydyronen Railway Station
- Rhydywrach
- Rhydlafr
- Rhydlafr
- Rhigos
- Rhigos
- Rhyl
- Rhyl FC
- Rhyl Railway Station
- Rhymney
- Rhymney Bridge Station
- Rhinog Fach
- Rhinog Fawr
- Rhysnant Hall Motte
- Rhiw
- Rhiw Goch
- Rhiwbina
- Rhiwbina Railway Station
- Rhiwddolion
- Rhiwderin Camp
- Rhiwfron
- Rhiwlas
- Rhobell Fawr
- Rhondda
- Rhoose
- Rhoose Cardiff International Airport Railway Station
- Rhos
- Rhos
- Rhos Ddiarbed
- Rhos Isaf
- Rhos Point
- Rhos-Bayvil
- Rhos-fawr
- Rhos-gôch
- Rhos-hill
- Rhos-y-bol
- Rhos-y-brithdir
- Rhôs-y-llan
- Rhos-meirch
- Rhôs-on-Sea
- Rhosaman
- Rhoscefnhir
- Rhoscolyn
- Rhoscolyn Head
- Rhoscrowther
- Rhosesmor
- Rhosgadfan
- Rhosgoch
- Rhoshirwaun
- Rhosymedre
- Rhoslan
- Rhosllanerchrugog
- Rhosmaen
- Rhosneigr
- Rhosneigr Railway Station
- Rhossili
- Rhossili Point
- Rhostie
- Rhostyllen
- Rhostrehwfa
- Rhuallt
- Rhuddlan
- Rhuddlan Castle
- Rhuddlan Nature Reserve
- Richmond Park
- Rickets Head
- Ridgeway Golf Club
- Rinaston
- Risca
- Risca And Pontymister Railway Station
- Roath
- Roath Park
- Robeston Wathen
- Roch
- Roch Castle
- Roche Castle
- Rockfield
- Rockfield Castle
- Rockfield Farm Motte
- Roft Motte
- Rogerstone
- Rogerstone Castle
- Rogerstone Railway Station
- Rogiet
- Royal Air Force Bodffordd
- Royal Air Force Valley
- Royal Gwent Hospital
- Roman Bridge Station
- Romans Castle
- Rookwood Hospital
- Rosebush
- Rosemarket
- Rosemarket Rath
- Rossett
- Rowen
- Ruabon
- Ruabon Mountain
- Ruabon Railway Station
- Rudbaxton
- Rudbaxton Rath
- Rudry
- Rug
- Rug Park Motte
- Rumney
- Rumney Castle
- Ruthin
- Ruthin Castle
- Ruthin Community Hospital
- Sageston
- Saint Andrews Major
- Saint Ann’s Head
- Saint Arvans
- Saint Asaph
- Saint Brides
- Saint Brides Major
- Saint Brides Wentlooge
- Saint Clears
- Saint Davids
- Saint Dogwells
- Saint Donats
- Saint Fagans
- Saint Florence
- Saint Govan’s Head
- Saint Gowan Lightvessel (historical)
- Saint Harmon
- Saint Hilary
- Saint Hilary Transmitting Station
- Saint Ishmael
- Saint Ishmael Town
- Saint Ishmael’s
- Saint Lawrence
- Saint Lythans
- Saint Margaret’s Island
- Saint Mary Church
- Saint Maughans
- Saint Mellons
- Saint Nicholas
- Saint Nicholas
- Saint Petrox
- Saint Tudwals Island East
- Saint Tudwals Island West
- Saint Tudwals Islands
- Saint Twynnells
- Salem
- Salthouse Point
- Saltney
- Sandycroft
- Sandyhaven
- Sardis
- Sardis Road
- Sarn
- Sarn
- Sarn
- Sarn Bach
- Sarn Railway Station
- Sarnau
- Sarnau
- Saron
- Saron
- Saron
- Saundersfoot
- Saundersfoot Railway Station
- Scethrog Tower
- Scleddau
- Scrape Cottage Mound
- Scurlage
- Scurlage Castle
- Sealand
- Seion
- Senghenydd
- Sennybridge
- Sentence Castle
- Seven Sisters
- Severn Tunnel Junction
- Sheep Island
- Shirenewton
- Shotton
- Shotton Railway Station
- Shotton Substation
- Sycharth Castle
- Sychdyn
- Sydallt
- Sigingstone
- Sylen
- Sylfaen Station
- Silian
- Simons Castle
- Simpson Cross
- Sinadon
- Synod
- Sirhowy
- Skenfrith
- Skenfrith Castle
- Sker Point
- Skewen
- Skewen Railway Station
- Skirrid Fawr
- Skokholm Island
- Skomer Island
- Sling
- Smalls Lighthouse
- Snaple Point
- Snead
- Snowdon
- Snowdon Ranger
- Snowdonia
- Soar
- Solva
- South Beach
- South Bishop
- South Cornelly
- South Hook Point
- South Pembrokeshire & Derwin N H S Trust
- South Stack
- Southerndown
- Southgate
- Southsea
- Spittal
- Splot
- Square and Compass
- St Anne's Church
- St Athan
- St Athan Royal Air Force Base
- St Bride's Netherwent
- St Catherine's Island
- St Clears Castle
- St Davids Head
- St Davids Hospital
- St Donats Castle
- St Fagans Castle
- St Fagans: National History Museum
- St George
- St Georges Castle
- St Illtyds Castle
- St Ishmaels Tump
- St Josephs Hospital
- St Mary's Church Tenby
- St Marys Yard Mound
- St Marys Old Church Motte
- St Mellons Golf Club
- St Michael's Church
- St Quintins Castle
- St. Clears FC
- St. David's
- St. Dogmaels
- St.Andrews Major Golf Club
- Stack Rocks
- Stackpole
- Stackpole Court
- Stackpole Head
- Staylittle
- Stanage Farm Motte
- Star
- Star
- Stebonheath Park
- Steynton
- Stepaside
- Stepaside
- Stephens Castle
- Stormy Castle
- Stradmore Motte
- Strata Florida
- Strata Florida Abbey (Wales)
- Strata Marcella Abbey
- Stryd-y-Facsen
- Strumble Head
- Strumble Head Lighthouse
- Sudbrook
- Sugar Loaf
- Sugar Loaf Railway Station
- Sully
- Sully Island
- Summerhill
- Summerton Camp
- Summit
- Swansea
- Swansea 4 Lon-Yr-Ysgol
- Swansea Airport
- Swansea Castle
- Swansea Mount Pleasant
- Swansea Mumbles Rd
- Swansea Princess Way
- Swansea Railway Station
- Swansea Sketty Lane
- Swansea St Marys Square
- Swansea University
- Swffryd
- Swn Y Gwynt Day Hospital
- Taff's Well
- Taffs Well Railway Station
- Tai'n Lon
- Tai'r Bull
- Tai'r-heol
- Taibach
- Tairgwaith
- Tal-gareg
- Tal-y-bont
- Tal-y-bont
- Tal-y-bont
- Tal-y-Cafn
- Tal-y-Cafn Railway Station
- Talacre
- Talbenny
- Talbot Green
- Talerddig
- Talgarth
- Talgarth Tower
- Talybont
- Talybont
- Talybont
- Talybont Airfield
- Talybont Railway Station
- Talyclun
- Talyllyn
- Talysarn
- Tallarn Green
- Talley
- Talley Mound
- Talog
- Talsarn
- Talsarnau
- Talsarnau Railway Station
- Talwrn
- Talwrn
- Tan y Castell
- Tan-y-Bwlch
- Tan-y-Bwlch Railway Station
- Tan-y-coed
- Tan-y-groes
- Tanyfron
- Tanygrisiau
- Tanygrisiau Railway Station
- Tanyraltt
- Tanlan Banks
- Tavernspite
- Tegryn
- Temple Bar
- Temple Bar
- Templeton
- Tenby
- Tenby Breakwater
- Tenby Castle
- Tenby Railway Station
- Terfyn
- Terfyn
- The Abbey
- The Airfield
- The Bailey Hill
- The Berries
- The Gate
- The Glamorganshire Golf Club
- The Gnoll
- The Hall
- The Moat
- The Narth
- The Parc Golf Club
- The Skerries
- The Skerries Lighthouse
- The Tower
- The Tumpa
- The Warden
- Thomas Chapel
- Thornton
- Three Cocks
- Three Crosses
- Ty Croes
- Tŷ Croes Railway Station
- Ty Du
- Ty Glas Railway Station
- Ty Gwyn
- Ty Mawr
- Ty Mawr
- Ty Newydd Mount
- Ty'n-y-groes
- Tycroes
- Tyddyn Mount
- Tiers Cross
- Tygwyn Railway Station
- Tylorstown
- Tyn Twr
- Tyn-y-cwm
- Tyn-y-Gongl
- Tynewydd Mound
- Tynllwynhen Halt
- Tintern
- Tir Bach
- Tir y Dail house
- Tir-y-berth
- Tir-Phil Railway Station
- Tirabad
- Tircoed
- Tirphil
- Tythegston
- Tythegston Court
- Tywyn
- Tywyn & District War Memorial Hospital
- Tywyn Mediumwave Transmitter, Mast North
- Tywyn Mediumwave Transmitter, Mast South
- Tywyn Pendre
- Tywyn Point
- Tywyn Railway Station
- Tywyn Wharf Railway Station
- TNS
- Tomen Bedd Urge
- Tomen Bryn Dadlau Mound
- Tomen Castell
- Tomen Castle
- Tomen Cefn Glaniwrch
- Tomen Cefncoch Motte
- Tomen Fawr
- Tomen Gastell
- Tomen y Bala
- Tomen y Castell
- Tomen y Cefnlloer
- Tomen y Clawdd
- Tomen y Faerdre
- Tomen y Maerdy Motte
- Tomen y Mur
- Tomen y Rhodwydd
- Tomen yr Allt Motte
- Tomen Las Castle Mound
- Tomen Llanio
- Tomen Llansantffraid
- Tomen Madoc Motte
- Tomen Rhyd Owen
- Tomenlawddog
- Tomenseba
- Ton Pentre Railway Station
- Ton-fanau
- Tondu
- Tondu Railway Station
- Tonfanau Railway Station
- Tongwynlais
- Tonypandy
- Tonypandy Railway Station
- Tonyrefail
- Tonmawr
- Tonna
- Tonna Hospitial
- Torpantau
- Tower House Mound
- Towy Castle
- Towyn
- Towyn Burrows
- Traeth Lligwy
- Traeth Penllech
- Trawsfynydd
- Trawsfynydd nuclear power station
- Tre Castle
- Tre Domen Mound
- Tre-Forgan
- Tre-groes
- Tre-Taliesin
- Tre'r-ddôl
- Trearddur Bay
- Trebanos
- Treborth
- Trecastle
- Trecastle Motte
- Trecceln
- Trecwn
- Tredegar
- Tredegar Fort
- Tredegar House Country Park
- Tredegar Park
- Tredunnock
- Tredustan Motte
- Tref-y-Clawdd
- Trefdraeth
- Trefecca
- Trefecca Motte
- Trefeglwys
- Treffgarne
- Treffynnon
- Trefforest Estate Railway Station
- Trefforest Railway Station
- Trefgarn Owen
- Trefil
- Trefilan
- Trefin
- Trefnant
- Treforest
- Trefriw
- Tregaron
- Tregaron Community Hospital
- Tregarth
- Tregele
- Tregynon
- Treglemais
- Trehafod
- Trehafod Railway Station
- Treharris
- Treherbert
- Treherbert
- Treherbert Railway Station
- Trelawnyd
- Trelech
- Trelech-a’r-Bettws
- Treleddyd-fawr
- Trelewis
- Trelystan
- Trellech Primary School
- Trelleck
- Trelogan
- Tremadoc
- Tremadog
- Tremain
- Tremeirchion
- Trench Farm
- Treoda
- Treoes
- Treorchy
- Treorchy Railway Station
- Treowen Ringwork
- Trerhyngyll
- Tresaith
- Tresaith Beach
- Trethomas
- Tretio
- Tretower
- Tretower Castle
- Tretower Court
- Treuddyn
- Trevalyn
- Trevaughan
- Trevor
- Trevor
- Trewent Point
- Trewern
- Trewern Mound
- Trewyddel
- Trichrûg
- Tryfan
- Tryfan Junction Railway Station
- Trimsaran
- Trinant
- Troed yr Harn Motte
- Troed-y-rhiw Railway Station
- Troedyraur
- Troedyrhiw
- Troedyrhiw Garth Station
- Trostre
- Trostrey
- Trostrey Castle
- Truemans Hill
- Trwyn Cilan
- Trwyn Cliperau
- Trwyn Du
- Trwyn Dwlban
- Trwyn y Tâl
- Trwyn Llanbedrog
- Trwyn Porth Dinlläen
- Trwstllewelyn
- Tudweiliog
- Tufton
- Tumble
- Tump Terret
- Turla Mound
- Twycross
- Twyn Bell Camp
- Twyn Bryn-hîr
- Twyn Castell
- Twyn y Garth
- Twyn y Gregen
- Twyn Llanan
- Twyn Llewelyn
- Twyn Tudur
- Twiscob Moat
- Twm Barlwm
- Twmpan Motte
- Twmpath Garmon
- Twmpath Motte
- Tŵr Mawr Lighthouse
- Twthill
- Ucheldre Mound
- Underwood
- Undy
- Upfield Farm
- Upper Borth
- Upper Chapel
- Upper Corris
- Upper Killay
- Upper Lamphey Park
- Upper Luggy Motte
- Upper Pen y Clawdd Ringwork
- Upper Redbrook
- Upper Tumble
- Usk
- Usk Castle
- Uwchmynydd
- Uzmaston
- Valle Crucis Abbey
- Valle Crucis Abbey (Wales)
- Valley
- Valley Railway Station
- Van
- Varteg Hill
- Velindre
- Velindre
- Velindre-farchog
- Vianshill
- Victoria
- Victoria Memorial Hospital
- Victoria Road
- Waen
- Wallis
- Wallog
- Walterston Castle
- Walton East
- Walton West
- Walwen
- Walwyn’s Castle
- Walwyns Castle
- Warren
- Waterloo
- Waterston
- Wattstown
- Wattsville
- Waun
- Waun Ddu
- Waun y Clyn
- Waun Tympath
- Waun-Gron Park Railway Station
- Waunarlwydd
- Waunfawr
- Waunfawr Railway Station
- Waungilwen
- Waunllapria
- Well Farm
- Welsh Hook
- Welsh St Donats
- Welshpool
- Welshpool
- Welshpool Airport
- Welshpool Railway Station
- Welshpool Raven Square Station
- Wentloog Castle
- Wenvoe
- Wenvoe Castle Golf Club
- Wenvoe Transmitting Station
- Weobley Castle
- Wern y Cwrt Motte
- Werndale Private Hospital
- Werngifford
- West Aberthaw
- West Mouse
- West Usk Lighthouse
- Western HVDC Link - Flintshire Bridge Static Inverter Plant
- Whelston
- Whistling Sands
- Whitchurch
- Whitchurch Railway Station
- White Castle
- White Grit
- Whitebrook
- Whitechurch
- Whiteford Point
- Whiteford Point Lighthouse
- Whitehill
- Whitesands Bay
- Whiteshell Point
- Whitford
- Whitland
- Whitland Abbey
- Whitland Railway Station
- Whitson
- Whitton
- Wick
- Wyes Wood Common
- Wyesham
- Wildlife Park
- Wildmill Railway Station
- Wylfa Head
- Wylfa Nuclear Power Station
- Wyllie
- Wyndham
- Wyndham Park
- Wynnstay
- Winsh-wen Mediumwave Transmitter
- Wiston
- Wiston Castle
- Withybrush Hospital
- Wolf’s Castle
- Wolfscastle
- Wolfscastle Motte
- Wolfsdale
- Wolvesnewton
- Womaston Castle
- Wonastow
- Woodcastle Castle
- Wooden
- Woodstock Ring
- Wooltack Point
- Worms Head
- Worthenbury
- Wrexham
- Wrexham Bus Station
- Wrexham Central Railway Station
- Wrexham General Railway Station
- Wrexham Maelor Hospital
- Y Bontnewydd-ar-Wy
- Y Coed Duon
- Y Fali
- Y Fan
- Y Felinheli
- Y Ffôr
- Y Fron
- Y Gaer
- Y Garn
- Y Garn
- Y Gelli Gandryll
- Y Llethr
- Y Lliwedd
- Ybwythyn
- Yerbeston
- Ynys
- Ynys Cefni
- Ynys Deullyn
- Ynys Dulas
- Ynys Gwylan-fawr
- Ynys Lochtyn
- Ynys Meicel
- Ynys Moelfre
- Ynys-Hir
- Ynyscrug Castle
- Ynysddu
- Ynysforgan
- Ynysybwl
- Ynyslas
- Ynyswen
- Ynyswen
- Ynyswen Railway Station
- Yr Aran
- Yr Arwydd
- Yr Eifl
- Yr Eifl Head
- Ysbyty George Thomas
- Ysbyty Ifan
- Ysbyty Penrhos Stanley
- Ysceifiog
- Ysgubor Gaer
- Ysgubor Wen Motte
- Yspytty Cynfyn
- Yspytty-Ystwyth
- Ystalyfera
- Ystrad Aeron
- Ystrad Meurig Castle
- Ystrad Mynach
- Ystrad Mynach Hospital
- Ystrad Mynach Railway Station
- Ystrad Rhondda Railway Station
- Ystrad-ffin
- Ystrad-Meurig
- Ystradfellte
- Ystradgynlais
- Ystradgynlais Community Hospital
- Ystradowen
- Ystradowen
- Ystradowen Motte
