| Jełmuń | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Warmian-Masurian |
| Subdivision Type2: | County |
| Subdivision Name2: | Mrągowo |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Sorkwity |
| Coordinates: | 53.85°N 25°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 50 |
Jełmuń is a village in the administrative district of Gmina Sorkwity, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland.[1] It lies approximately 6km (04miles) west of Sorkwity, 160NaN0 west of Mrągowo, and 380NaN0 east of the regional capital Olsztyn.