| Cașva | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Mureș County |
| Length: | 18km (11miles) |
| Mouth: | Gurghiu |
| Mouth Location: | Cașva |
| Mouth Coordinates: | 46.7785°N 24.8753°W |
| Basin Size: | 60km2 |
The Cașva is a right tributary of the Gurghiu river in Transylvania, Romania. It discharges into the Gurghiu in the village of Cașva.[1] Its length is 18km (11miles) and its basin size is 60km2.