| Official Name: | Akkystau |
| Native Name: | Аққыстау اككىستاۋ |
| Pushpin Map: | Kazakhstan |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Kazakhstan |
| Subdivision Type1: | Region |
| Subdivision Name1: | Atyrau |
| Timezone: | West Kazakhstan Time |
| Utc Offset: | +5 |
| Utc Offset Dst: | +5 |
| Coordinates: | 47.2236°N 51.0061°W |
| Elevation M: | -8 |
Akkystau, also known as Aqqystau,[1] (Аққыстау, Aqqystau, اككىستاۋ) is a town in Atyrau Region, southwest Kazakhstan. It lies at an altitude of 8m (26feet) below sea level.