The Banas is a river which lies entirely within the state of Rajasthan in western India. It is a tributary of the Chambal River, itself a tributary of the Yamuna, which in turn merges into the Ganga. The Banas is approximately 512 kilometres in length.

The name "Banaas" literally translates as "forest-hope" (Ban-aas) meaning "Hope-of-the-forest"