| Bolshoy Kub | |
| Mouth: | Veslyana |
| Length: | 37km (23miles) |
| Mouth Coordinates: | 60.5146°N 52.7051°W |
The Bolshoy Kub (Russian: Большой Куб) is a river in Perm Krai, Russia, a left tributary of the Veslyana, which in turn is a tributary of the Kama. The river is 37km (23miles) long. The Bolshoy Kub flows into the Veslyana 121km (75miles) from the larger river's mouth.[1]