Gwion, or Taliesin, was an early Brythonic poet of Sub-Roman Britain.
Gwion may also refer to:
- Gwion Edwards (born 1993), Welsh footballer
- Gwion Hallam, Welsh writer and television presenter
See also
edit- Gwion Gwion, a rock art tradition of Australia
- Guion (disambiguation)
- Gweon, alternative spelling of the Korean name Kwon