List of Famous people named Owain

Owain ap Dyfnwal was an early tenth-century King of Strathclyde. He was probably a son of Dyfnwal, King of Strathclyde, who may have been related to previous rulers of the Kingdom of Strathclyde. Originally centred in the valley of the River Clyde, this realm appears to have undergone considerable southward expansion in the ninth or tenth century, after which it increasing came to be known as the Kingdom of Cumbria.

Owain Lawgoch, full name Owain ap Thomas ap Rhodri, was a Welsh soldier who served in Spain, France, Alsace, and Switzerland. He led a Free Company fighting for the French against the English in the Hundred Years' War. As the last politically active descendant of Llywelyn the Great in the male line, he was a claimant to the title of Prince of Gwynedd and of Wales.

Owain ap Cadwgan was a prince of Powys in eastern Wales. He is best known for his abduction of Nest, wife of Gerald of Windsor.