| Bolshaya Kokshaga | |
| Alt Name: | Большая Кокшага |
| Iucn Category: | Ia |
| Map: | Russia |
| Location: | Mari-El, Russia |
| Nearest City: | Yoshkar-Ola |
| Area: | 21 405 ha |
| Governing Body: | Федеральное государственное бюджетное учреждение "Государственный природный заповедник «Большая Кокшага»" |
Bolshaya Kokshaga Nature Reserve is a nature reserve in Kilemarsky District and Medvedevsky District, Mari-El, Russia.[1]