| Șasa | |
| Name Other: | Sașa |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Vâlcea County |
| Length: | 32km (20miles) |
| Mouth: | Olteț |
| Mouth Location: | Gănești |
| Mouth Coordinates: | 44.7248°N 23.9088°W |
| Basin Size: | 103km2 |
| Tributaries Right: | Zgubea |
The Șasa (also: Sașa) is a left tributary of the river Olteț in Romania. It discharges into the Olteț in Gănești. It flows through the communes Roșiile and Tetoiu. Its length is 32km (20miles) and its basin size is 103km2.