| Öndörkhangai District | |
| Native Name: | Mongolian: Өндөрхангай 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 |
Öndörkhangai (Mongolian: Өндөрхангай, in Mongolian pronounced as /ˌɵntɵrχaɴˈɢæ/) is a sum (district) of Uvs Province in western Mongolia.
The sum is in the Khan Khökhii mountains.