| Ustnik | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Warmian-Masurian |
| Subdivision Type2: | County |
| Subdivision Name2: | Olsztyn |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Jeziorany |
| Coordinates: | 53.9917°N 20.6981°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 60 |
Ustnik is a village in the administrative district of Gmina Jeziorany, within Olsztyn County, Warmian-Masurian Voivodeship, in northern Poland.[1] It lies approximately 4km (02miles) north-west of Jeziorany and 270NaN0 north-east of the regional capital Olsztyn.