| Official Name: | Ust-Morzh |
| Native Name: | Усть-Морж |
| 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: | 63.0333°N 60°W[1] |
Ust-Morzh (Russian: Усть-Морж) is a rural locality (a village) in Vinogradovsky District, Arkhangelsk Oblast, Russia. The population was 49 as of 2010.[2] There are 3 streets.
Ust-Morzh is located on the Severnaya Dvina River, 36 km northwest of Bereznik (the district's administrative centre) by road. Khetovo is the nearest rural locality.[3]