| Bolshaya Vaya | |
| Mouth Location: | Vishera |
| Length Km: | 30 |
The Bolshaya Vaya (ru|Большая Вая) is a river in Perm Krai, Russia, a right tributary of Vishera which in turn is a tributary of Kama. The river is 30km (20miles) long.[1] The mouth of the river is located near the settlement of Vaya.