Owain ab Edwin of Tegeingl or Owain the Traitor, was lord of the cantref of Tegeingl in north-east Wales at the end of the 11th century. He was the son of Edwin ap Gronw of Tegeingl, a great-great-grandson of Hywel Dda. He sided with the Normans in their failed invasion of North Wales, and in the 1090s attempted to become ruler of Gwynedd.
- Occupation
- large estate owner
- Died
- 1105
