Hywel ab Owain Gwynedd, Prince of Gwynedd in 1170, was a Welsh poet and military leader. Hywel was the son of Owain Gwynedd, prince of Gwynedd, and an Irishwoman named Pyfog. In recognition of this, he was also known as Hywel ap Gwyddeles. Hywel is also known as the Poet Prince for his bardic skills.

Owain ap Gruffudd was King of Gwynedd, North Wales, from 1137 until his death in 1170, succeeding his father Gruffudd ap Cynan. He was called Owain the Great and the first to be styled "Prince of Wales", and the "Prince of the Welsh". He is considered to be the most successful of all the North Welsh princes prior to his grandson, Llywelyn the Great. He became known as Owain Gwynedd to distinguish him from the contemporary king of Powys Wenwynwyn, Owain ap Gruffydd ap Maredudd, who became known as Owain Cyfeiliog.