| Runc | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Gorj County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Runcu, Sănătești, Arcani |
| Length: | 9km (06miles) |
| Mouth: | Jaleș |
| Mouth Coordinates: | 45.0513°N 23.1447°W |
| Progression: | Jaleș→ |
| Basin Size: | 17km2 |
| Custom Label: | River code |
| Custom Data: | VII.1.31.7.3 |
The Runc is a right tributary of the river Jaleș in Romania. It flows into the Jaleș in Câmpofeni. Its length is 9km (06miles) and its basin size is 17km2.