| Tsagaankhairkhan District | |
| Native Name: | Цагаанхайрхан сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Uvs Province |
| Timezone: | UTC + 7 |
| Utc Offset: | +7 |
Tsagaankhairkhan (Mongolian: Цагаанхайрхан, white mountain) is a sum (district) of Uvs Province in western Mongolia.
It is situated in the Khan Khökhii mountains, on the banks of Mondoohei River.