Gwion (disambiguation)
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
- Gwion Gwion, a rock art tradition of Australia
 - Guion (disambiguation)
 - Gweon, alternative spelling of the Korean name Kwon