The Terisaqqan (Kazakh: Терісаққан, Terısaqqan; Russian: Терсаккан, Tersakkan) is a river of northern Kazakhstan. A left tributary of the Ishim, it is 334 kilometres (208 mi) long and has a basin area of 19,500 square kilometres (7,500 sq mi).^[1] It flows through the western parts of the Kazakh Uplands and the average annual flow is approximately 2.5 cubic metres per second (88 cu ft/s), with a maximum up to 52.7 cubic metres per second (1,860 cu ft/s). In the upper reaches it dries up, and it freezes to the bottom in some winters.^[1] Peak flow is in April during snowmelt.

Terisaqqan Терісаққан / Терсаккан
Mouth location in Kazakhstan
Location
Country	Kazakhstan
Physical characteristics
Source
• location	Ulutau Kazakh Uplands
Mouth	Ishim
• coordinates	51°14′58″N 67°09′33″E / 51.2494°N 67.1592°E / 51.2494; 67.1592
Length	334 km (208 mi)
Basin size	19,500 km2 (7,500 sq mi)
Discharge
• average	52.7 cubic metres per second (1,860 cu ft/s)
Basin features
Progression	Ishim→ Irtysh→ Ob→ Kara Sea