|Ashit, Aşıt River|
|Country||Mari El and Tatarstan, Russia|
|Main source||Ashitbash, Arsky District, Tatarstan|
|River mouth||Ilet River, Nurmuchash, Mari El
|Basin size||1,087 km2 (420 sq mi)|
|Length||83 km (52 mi)|
The Ashit (Russian: Ашит) or Aşıt (Tatar: Cyrillic Ашыт, Latin Aşıt [ʌˈʂɯt]) is a river in Tatarstan and Mari El, Russian Federation, a left-bank tributary of the Ilet River. It is 83 kilometres (52 mi) long, and its drainage basin covers 1,087 square kilometres (420 sq mi).
Major tributaries are the Ura, Semit, Shashi, Urtemka, and Ilinka. The maximal mineralization 450 mg/l. The average sediment deposition at the river mouth per year is 180 millimetres (7.1 in). Drainage is regulated. The lower part of the valley is swamped. Alat, Russia, and Bolshaya Atnya are in the river valley.