| Calva | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Sibiu County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Alma Vii, Moardăș, Mihăileni, Buia, Boarta |
| Length: | 33km (21miles) |
| Mouth: | Vișa |
| Mouth Location: | Șeica Mare |
| Mouth Coordinates: | 46.0195°N 24.1603°W |
| Basin Size: | 184km2 |
| Tributaries Left: | Metiș, Valea Satului |
The Calva is a right tributary of the river Vișa in Romania. It discharges into the Vișa in Șeica Mare. Its length is 33km (21miles) and its basin size is 184km2.