| Tismana | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Gorj County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Tismana, Godinești, Câlnic |
| Length: | 42km (26miles) |
| Source1: | Vâlcan Mountains |
| Mouth: | Jiu |
| Mouth Coordinates: | 44.9532°N 23.1317°W |
| Tributaries Left: | Sohodol, Bistrița, Jaleș |
| Tributaries Right: | Orlea |
The Tismana is a right tributary of the river Jiu in Romania. It discharges into the Jiu near Șomănești. Its length is 42km (26miles) and its basin size is 894km2. The 4 km long reach of the river, upstream of the Tismana Monastery is also known as Dorna.
The following rivers are tributaries to the river Tismana (from source to mouth):