| Official Name: | Ust-Vaga |
| Native Name: | Усть-Вага |
| Settlement Type: | Village |
| Pushpin Map: | Russia Arkhangelsk Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Arkhangelsk Oblast |
| Subdivision Name3: | Vinogradovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 62.7333°N 91°W[1] |
Ust-Vaga (Russian: Усть-Вага) is a rural locality (a village) in Bereznikovskoye Rural Settlement of Vinogradovsky District, Arkhangelsk Oblast, Russia. The population was 199 as of 2010.[2]
Ust-Vaga is located on the Vaga River, 18 km southeast of Bereznik (the district's administrative centre) by road. Zaborye is the nearest rural locality.[3]