| Blandiana | |
| Name Other: | Karna-patak |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Alba County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Blandiana |
| Length: | 11km (07miles) |
| Mouth: | Mureș |
| Mouth Location: | Blandiana |
| Mouth Coordinates: | 45.9668°N 23.4072°W |
| Basin Size: | 31km2 |
The Blandiana (Hungarian: Karna-patak) is a right tributary of the river Mureș in Romania. It discharges into the Mureș in the village Blandiana. Its length is 11km (07miles) and its basin size is 31km2.