The Sunzha (Russian: Су́нжа, IPA: [ˈsunʐə]; Chechen: Соьлжа, romanized: Sölƶa, IPA: [sɥølʒə];[1] Ingush: Шолжа, romanized: Sholʒə) is a river in North Ossetia, Ingushetia and Chechnya, Russia, a tributary of the Terek.

With a turbidity of 3,800 grams per cubic metre (6.4 lb/cu yd), it carries 12.2 million tons of alluvium per year.

Cities that lie on the Sunzha include Nazran, Karabulak, Grozny (the capital of Chechnya), and Gudermes.

The most probable of versions say Sunzha has come from Mongol-Turkic languages in the deformed type.

It is known that Mongols called it Suinchie, Russians Sevenz and in the Chechen language its name got corrective type Solchzha.