| Vyoksa | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 84km (52miles) |
| Source1: | Lake Galichskoye |
| Mouth: | Kostroma |
| Mouth Coordinates: | 58.4784°N 41.5278°W |
| Basin Size: | 2880km2 |
The Vyoksa (Russian: Вёкса) is a river running in the western part of the Kostroma Oblast in Central Russia. The river originates at the outflow of Lake Galichskoye. It drains into the Kostroma in the town of Buy. It is long, and has a drainage basin of .[1]