| Native Name: | Upernaviarssuk |
| Subdivision Type: | Sovereign state |
| Subdivision Name: | Denmark |
| Subdivision Type1: | Constituent country |
| Subdivision Name1: | Greenland |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Kujalleq |
| Population Total: | 13 |
Upernaviarsuk is an agricultural settlement in Kujalleq, Greenland.