| Cerna | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Vâlcea County |
| Length: | 164km (102miles) |
| Source1: | Căpățânii Mountains |
| Mouth: | Olteț |
| Mouth Location: | Budești |
| Mouth Coordinates: | 44.6124°N 23.9607°W |
| Basin Size: | 618km2 |
| Tributaries Left: | Cernișoara |
| Tributaries Right: | Glămana |
The Cerna is a left tributary of the river Olteț in Romania. It discharges into the Olteț near Budești.[1] It flows through the communes Vaideeni, Slătioara, Stroești, Copăceni, Lăpușata, Lădești, Stănești, Fârtățești, Măciuca, Valea Mare and Bălcești. Its length is 164km (102miles) and its basin size is 618km2.
The following rivers are tributaries to the river Cerna (from source to mouth):