| Terisaqqan | |
| Other Name: | Терісаққан / Терсаккан |
| Subdivision Type1: | Country |
| Subdivision Name1: | Kazakhstan |
| Source1 Location: | Ulytau Kazakh Uplands |
| Mouth: | Ishim |
| Mouth Coordinates: | 51.2494°N 67.1592°W |
| Length: | 334km (208miles) |
| Discharge1 Avg: | 52.7m3/s |
| Basin Size: | 19500km2 |
| Pushpin Map: | Kazakhstan |
| Pushpin Map Caption: | Mouth location in Kazakhstan |
The Terisaqqan (Kazakh: Терісаққан, Terısaqqan; Russian: Терсаккан, Tersakkan) is a river of northern Kazakhstan. A left tributary of the Ishim, it is 334km (208miles) long and has a basin area of 19500km2.[1] It flows through the western parts of the Kazakh Uplands and the average annual flow is approximately 2.5m3/s, with a maximum up to 52.7m3/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.