The Sićevo Gorge (Latinized: Sićevačka klisura; Serbian: Сићевачка клисура), a river gorge in Nišava District, Serbia, is the most prominent geological feature formed by the Nišava River. The gorge is located between Bela Palanka and Niška Banja; it is 17 km long, 350–400 m deep, in some parts developing canyon-like structures (including the inverse valley slopes at Gradiški kanjon; Cyrillic: Градишки кањон). The gorge is cut into the Kunovica plateau, between the southern slopes of the Svrljig mountains and the mountain of Suva Planina. The surrounding areas are known for their high-quality vineyards. The gorge contains a quarry, Ostrovica, and six villages: the largest, Sićevo, gives its name to the whole gorge.