Blethyn

Blethyn is a surname of Welsh origin. It is believed to derive from the Welsh personal name Bleddyn, which itself is thought to come from the word "llu" meaning "multitude" or "host". The name was borne by several Welsh princes, most notably Bleddyn ap Cynfyn, who reigned as King of Gwynedd and Powys in the 11th century. Over time, "Bleddyn" evolved into the surname "Blethyn" through common usage and Anglicization. As a surname, Blethyn is most frequently found in Wales and among people of Welsh descent in other English-speaking countries. Notable individuals bearing the surname have contributed to various fields, though it is less common than some other Welsh surnames. Historical records indicate its presence in Welsh communities for centuries. The distribution of the surname suggests its deep roots within the historical Welsh population.