| Tsetsen-Uul District | |
| Native Name: | Цэцэн-Уул сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Zavkhan Province |
| Timezone: | UTC + 8 |
| Utc Offset: | +8 |
| Blank Name: | Climate |
Tsetsen-Uul (mn|Цэцэн-Уул) is a sum of Zavkhan Province in western Mongolia. In 2008, its population was 2,114.[1] On January 21, 2016 at 15:00 UTC, the place recorded the world's highest sea-level pressure of 1094.7hPa, which is the origin of the January 2016 East Asia cold wave that brought the coldest weather in decades to many Chinese, Taiwanese and Thai cities.