| Asa | |
| Source1: | Karatau Mountains |
| Mouth: | Muyunkum Desert |
| Mouth Coordinates: | 43.9202°N 70.2066°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Kazakhstan |
| Length Km: | 253 |
| Basin Size Km2: | 9210 |
The Asa (kk|Аса, Asa) is a river of Kazakhstan.
The river has its source in the Karatau Mountains.It flows through lakes Bilikol and Akkol.[1] Further downstream it vanishes in the Muyunkum Desert before reaching the river Talas. The river is 253km (157miles) long and has a basin area of 9210km2.[2]
