孙扎河是俄罗斯的河流，位于北奥塞梯-阿兰共和国、印古什共和国和车臣共和国内，属于捷列克河的右支流，河道全长278公里，流域面积约12,200平方公里，支流有阿尔贡河，河畔城镇有纳兹兰、卡拉布拉克、格罗兹尼和古杰尔梅斯。

The Sunzha (Russian:Су́нжа;IPA: [ˈsunʐə], Ossetian:Сунжæ, Sunžæ;IPA: [sunʒə], Chechen:Соьлжа, Sölƶa) is a river in North Ossetia, Ingushetia and Chechnya, Russia, a tributary of the Terek River. It flows northeast inside the great northwest bend of the Terek River and catches most of the rivers that flow north from the mountains before they reach the Terek. It is 278 kilometres (173 mi) long. The Sunzha rises on the Northern slope of the Caucasus Major. Its major tributaries are the Assa River and Argun River. 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. It is used for irrigation. Cities that lie on the Sunzha include Nazran, Karabulak, Grozny (the capital of Chechnya), and Gudermes. During the First and Second Chechen Wars, the destruction of petroleum reservoirs caused the Sunzha to become polluted with petroleum.