Llyn Trawsfynydd
General data
- Name: Llyn Trawsfynydd
- Water system: River Dwyryd
- Water type: Artificial lake
- Progression: Afon Prysor -> River Dwyryd -> Tremadog Bay -> Cardigan Bay -> Irish Sea -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: Europe
- Countries: Wales (UK)