| Bayanlig District | |
| Native Name: | Баянлиг сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Pushpin Map: | Mongolia |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Mongolia |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Bayankhongor |
| Unit Pref: | Imperial |
| Area Total Km2: | 11918 |
| Population As Of: | 2006 |
| Population Total: | 3316 |
| Population Urban: | 805 |
| Timezone: | UTC+8 |
| Coordinates: | 44.5453°N 100.8283°W |
Bayanlig (Mongolian: Баянлиг, Rich League) is a sum (district) of Bayankhongor Province in southern Mongolia. In 2006, its population was 3,316.[1]