| Zlaști | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Hunedoara County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Groș, Boș, Zlaști |
| Length: | 33km (21miles) |
| Mouth: | Cerna |
| Mouth Location: | Hunedoara |
| Mouth Coordinates: | 45.7491°N 22.8931°W |
| Basin Size: | 79km2 |
The Zlaști is a left tributary of the river Cerna in Romania. It discharges into the Cerna in the city Hunedoara. Its length is 33km (21miles) and its basin size is 79km2.