| Bat-Ölzii District | |
| Native Name: | Бат-Өлзий сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Pushpin Map: | Mongolia |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Övörkhangai Province |
| Timezone: | UTC + 8 |
| Utc Offset: | +8 |
| Coordinates: | 46.8194°N 102.2406°W |
Bat-Ölzii (Mongolian: Бат-Өлзий) is a sum (district) in the northwest of Övörkhangai Province, Mongolia. Formerly in, it was established in 1924.[1] In 2008, its population was 6,189.[2]