| Pustnic | |
|---|---|
  Location within Romania | |
| Location | |
| Country | Romania |
| Counties | Harghita County |
| Villages | Șoimeni, Păuleni-Ciuc |
| Physical characteristics | |
| Mouth | Olt |
• coordinates | 46°22′18″N 25°45′59″E / 46.3716°N 25.7664°E |
| Length | 15 km (9.3 mi) |
Basin size | 46 km2 (18 sq mi) |
| Basin features | |
| Progression | Olt→ Danube→ Black Sea |
| Tributaries | |
| • left | Orociu, Șumuleu |
The Pustnic is a left tributary of the river Olt in Romania. It flows into the Olt near Miercurea Ciuc. Its length is 15 km (9.3 mi) and its basin size is 46 km2 (18 sq mi).
