| Rhian Griffiths | |
| Birth Date: | 30 September 1980 |
| Birth Place: | Carmarthen, Wales |
| Hometown: | Ebbw Vale, Wales |
| Since: | 1999 |
| Darts: | 24 Gram |
| Laterality: | Right-handed |
| Music: | "Highway to Hell" by AC/DC |
| Bdo: | 2013–2020 |
| Wdf: | 2013– |
| Bdo World: | Last 16: 2017, 2018 |
| World Masters: | Last 12: 2016 |
| World Darts Trophy: | Semi Final: 2016 |
| Isle Of Man Masters: | Last 8: 2018 |
| Tournament: | WDF Europe Cup Ladies Pairs |
| Results: | 2016 |
Rhian Griffiths (born 30 September 1980) is a professional Welsh female darts player who currently plays in World Darts Federation events.
Griffiths reached the Semi-final of the 2016 BDO World Trophy, losing to Deta Hedman 6–1. She qualified for the 2017 BDO World Darts Championship, where she lost to Anastasia Dobromyslova in the last 16.