High Quality Content by WIKIPEDIA articles! Welsh (Cymraeg or y Gymraeg, pronounced ) is a member of the Brythonic branch of the Celtic languages spoken natively in Wales, by some along the Welsh border in England, and in Y Wladfa (the Welsh colony in Chubut Province, Argentina). Historically, it has also been known in English as "the British tongue", "Cambrian", "Cambric" and "Cymric".