| Câlnic | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Alba County |
| Length: | 13km (08miles) |
| Mouth: | Secaș |
| Mouth Location: | Câlnic |
| Mouth Coordinates: | 45.9302°N 23.7129°W |
| Basin Size: | 32km2 |
The Câlnic is a left tributary of the river Secaș in Romania. It discharges into the Secaș in Cunța. It flows through the village Câlnic. Its length is 13km (08miles) and its basin size is 32km2.