| Zlagna | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Sibiu County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Zlagna, Ighișu Vechi |
| Length: | 11km (07miles) |
| Mouth: | Hârtibaciu |
| Mouth Coordinates: | 45.9627°N 24.4742°W |
| Basin Size: | 47km2 |
| Tributaries Right: | Dosu Pădurii |
The Zlagna is a right tributary of the river Hârtibaciu in Romania. It discharges into the Hârtibaciu near Alțâna. Its length is 11km (07miles) and its basin size is 47km2.