Tavanasa lies in the municipality of Breil/Brigels, Graubünden, Switzerland. It has a station on the Disentis - Reichenau line of the Rhätische Bahn railway.
Tavanasa is a major sports activities area offering skiing in the winter and watersports along the Rhine in the summer.
The Tavanasa Bridge is a major crossing of the Rhine (Vorderrhein).