Gwawrddur ap Mynyddog (568-638) was High Chief of Gododdin from 597 to 638, succeeding Mynyddog Mwynfawr. He succeeded his father on his death in 597, and he ruled over a kingdom which slowly disintegrated following the Battle of Catraeth. In 638, he was slain when Edinburgh fell to the Angles, bringing an end to Gododdin.