Duras is a traditional French variety of red wine grape that is mostly grown around the Tarn River, northeast of Toulouse. It is usually blended with other traditional varieties, but production has been declining in recent years.
Despite the name the grape appears to have no connection with of the Côtes de Duras east of Bordeaux, at least it is not grown there today. Nor is any link known to the Durasa of Piedmont.