| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Omono Delger Suma | city | Hentiy | Mongolia | 47.87 | 109.92 | 4317 | 0 |
| Ondorkhaan | city | Hentiy | Mongolia | 47.32 | 110.66 | 3418 | 2053 |
| Onon | city | Hentiy | Mongolia | 48.62 | 110.60 | 3385 | 0 |
| Ortoon Shuteen | city | Hentiy | Mongolia | 47.58 | 109.40 | 5029 | 0 |