Utarmbung language
| Osum | |
|---|---|
| Utarmbung | |
| Native to | Papua New Guinea | 
| Region | Madang Province | 
| Native speakers | 1,200 (2003) | 
| Language codes | |
| ISO 639-3 | omo | 
| Glottolog | utar1238 | 
Osum, also known as Utarmbung, is a divergent Madang language of the Adelbert Range of Papua New Guinea.