| Baruun Bayan-Ulaan District | |
| Native Name: | Баруунбаян-Улаан сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Coordinates: | 45.1769°N 101.4197°W |
| Pushpin Map: | Mongolia |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Övörkhangai Province |
| Timezone: | UTC + 8 |
| Utc Offset: | +8 |
Baruun Bayan-Ulaan (Mongolian: Баруун Баян-Улаан, West rich red) is a sum (district) of Övörkhangai Province in southern Mongolia. In 2008, its population was 2,556.[1]