| Official Name: | Yustik |
| Native Name: | Юстик |
| Settlement Type: | Village |
| Pushpin Map: | Russia Altai Republic#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Republic |
| Subdivision Name3: | Ust-Koksinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 50.35°N 99°W[1] |
Yustik (Russian: Юстик; Southern Altai: Јӱс Тыт, Ĵüs Tıt) is a rural locality (a selo) in Ust-Koksinsky District, the Altai Republic, Russia. The population was 300 as of 2016.[2] There are 4 streets.
Yustik is located near the Koksa River, 37 km northwest of Ust-Koksa (the district's administrative centre) by road. Krasnoyarka is the nearest rural locality.[3]