List of United Kingdom locations: Cw-Cz

Cw

|- class="vcard"
| class="fn org" | Cwm
| class="adr" | Shropshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm
| class="adr" | Blaenau Gwent
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm
| class="adr" | Denbighshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmafan
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmaman
| class="adr" | Rhondda, Cynon, Taff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmann
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmavon
| class="adr" | Torfaen
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmbach
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmbach
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmbach
| class="adr" | Rhondda, Cynon, Taff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmbach Llechrhyd
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmbelan
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmbran
| class="adr" | Torfaen
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmbrwyno
| class="adr" | Ceredigion
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Capel
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmcarn
| class="adr" | Caerphilly
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmcarvan
| class="adr" | Monmouthshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-celyn
| class="adr" | Blaenau Gwent
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmcerdinen
| class="adr" | Swansea
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-Cewydd
| class="adr" | Gwynedd
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmcoednerth
| class="adr" | Ceredigion
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-cou
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmcrawnon
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmcych
| class="adr" | Pembrokeshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmdare
| class="adr" | Rhondda, Cynon, Taff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Dows
| class="adr" | Caerphilly
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmdu
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmdu
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmdu
| class="adr" | Swansea
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmduad
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Dulais
| class="adr" | Swansea
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmdwr
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmerfyn
| class="adr" | Ceredigion
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmfelin
| class="adr" | Merthyr Tydfil
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmfelin
| class="adr" | Bridgend
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmfelin Boeth
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmfelinfach
| class="adr" | Caerphilly
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmfelin Mynach
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmffrwd
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Ffrwd-oer
| class="adr" | Torfaen
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-Fields
| class="adr" | Torfaen
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Gelli
| class="adr" | Caerphilly
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmgiedd
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmgors
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmgwili
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmgwrach
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Gwyn
| class="adr" | Swansea
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Head
| class="adr" | Shropshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmhiraeth
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-hwnt
| class="adr" | Rhondda, Cynon, Taff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmifor
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Irfon
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmisfael
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-Llinau
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmllynfell
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-mawr
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-miles
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Nant-gam
| class="adr" | Blaenau Gwent
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmnantyrodyn
| class="adr" | Caerphilly
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmorgan
| class="adr" | Pembrokeshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmparc
| class="adr" | Rhondda, Cynon, Taff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmpengraig
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Penmachno
| class="adr" | Conwy
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmpennar
| class="adr" | Rhondda, Cynon, Taff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm Plysgog
| class="adr" | Pembrokeshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmrhos
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmrhydyceirw
| class="adr" | Swansea
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmsyfiog
| class="adr" | Caerphilly
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmsymlog
| class="adr" | Ceredigion
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmtillery
| class="adr" | Blaenau Gwent
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-twrch Isaf
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-twrch Uchaf
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmwdig Water
| class="adr" | Pembrokeshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmwysg
| class="adr" | Powys
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwm-y-glo
| class="adr" | Gwynedd
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmynyscoy
| class="adr" | Torfaen
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmyoy
| class="adr" | Monmouthshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwmystwyth
| class="adr" | Ceredigion
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwrt
| class="adr" | Gwynedd
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwrtnewydd
| class="adr" | Ceredigion
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cwrt-y-cadno
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|}

Cy

|- class="vcard"
| class="fn org" | Cydweli (Kidwelly)
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cyffylliog
| class="adr" | Denbighshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cymau
| class="adr" | Flintshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cymdda
| class="adr" | Bridgend
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cymer
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cymmer
| class="adr" | Rhondda, Cynon, Taff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cyncoed
| class="adr" | Cardiff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cynheidre
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cynonville
| class="adr" | Neath Port Talbot
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cyntwell
| class="adr" | Cardiff
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cynwyd
| class="adr" | Denbighshire
| class="note" | 
| class="note" | 
|- class="vcard"
| class="fn org" | Cynwyl Elfed
| class="adr" | Carmarthenshire
| class="note" | 
| class="note" | 
|}