Wales

Cymry is a Welsh name for the people of Wales (Cymru), or their homeland, from the Brythonic word combrogi, meaning "fellow-countrymen" During medieval times, the people of Wales and the Hen Ogledd considered themselves to be one people, and both were referred to this way as Cymry, as a northern alliance and a land of united countryman.
Latin: Cambria
Saxon: Wealh, or the plural Wēalas
Kingdoms
Gwynedd
Powys
Gwent 
Glywysing
Dyfed 
Ceredigion
Brycheniog 
Ergyng
Lesser Kingdoms and Cantrefs
Cemais
Aberffraw 
Rhosyr
Arfon
Caernarfon
Llŷn
Arllechwedd
Dunoding
Meirionnydd
Penllyn
Rhos
Dogfeiling
Tegeingl
Rhufoniog
Dyffryn Clwyd
Maelor
Ystlyg
Pengwern
Caerenion
Arwystli
Maelienydd
Penweddig
Cefeliog
Cwmdu
Elenydd 
Elfael 
Buellt 
Gwrtheyrnion 
Maelienydd 
Cedewain 
Talgarth 
Ewyas 
Gwynllwg
Penychen
Gorfynydd
Edeligion
Eginog
Gwyr
Mawr
Caerfyrddin
Mynyw
Crueddyn
Rivers
Hafren 
Gwy 
Usk 
Taf 
Llwyd 
Nedd
Tawe
Llwchwr
Tywi 
Cothi 
Teifi 
Mynwy
Arwy
Llugwy
Ieithon
Irfon 
Ayron
Ystwyth
Cynwy
Clwyd
Dyfrdwy
Mountains
Mynyddoedd Cymru
Elenydd
Y Mynydd Du 
Brycheiniog Mountains
Eryri Mountains 
Clwyd Mountains
Other Locations
Menai
Gwyddfa Rhita
Deganwy
Tywyn
Ystrad Tywi
Rhwng Gwy a Hafren
Din Gwrygon
Caer Wyddno
Ynys Môn
Ynys Enlli
Ynys Gybi
Ynys Seiriol
Gobannium
Venta Silurum
Isca Silurum
Nedum
Moridunum
Segontium
Viroconium
Deva Victrix
North Wales 
South Wales 
Welsh Midlands