| Buutsagaan District | |
| Native Name: | Бууцагаан сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Bayankhongor Province |
| Area Total Km2: | 5,840 |
| Timezone: | UTC + 8 |
| Utc Offset: | +8 |
Buutsagaan (Mongolian: Бууцагаан, White Gun) is a sum (district) of Bayankhongor Province in southern Mongolia. In 2006, its population was 3,452.[1]