| Bayankhairkhan District | |
| Native Name: | Баянхайрхан сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Zavkhan Province |
| Timezone: | UTC + 8 |
| Utc Offset: | +8 |
| Blank Name: | Climate |
Bayankhairkhan (Mongolian: Баянхайрхан, Rich mountain) is a sum of Zavkhan Province in western Mongolia. In 2005, its population was 1,968.[1]