| Airag District | |
| Native Name: | Айраг сум |
| Native Name Lang: | mn |
| Settlement Type: | District |
| Pushpin Map: | Mongolia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Mongolia |
| Subdivision Type: | Country |
| Subdivision Name: | Mongolia |
| Subdivision Type1: | Province |
| Subdivision Name1: | Dornogovi Province |
| Unit Pref: | Imperial |
| Area Total Km2: | 7,442.58 |
| Population As Of: | 2005 |
| Coordinates: | 45.7994°N 109.3133°W |
Airag (mn|Айраг, also Khar-Airag, Hara-Ayrag, Kumis) is a sum (district) and town of Dornogovi Province in southeastern Mongolia. Airag sum center is a fluorspar mining settlement, the primary fluorspar mining and processing enterprises are at Bor-Öndör city (Khentii aimag). The railway station connecting Bor-Öndör (60 km) via Airag to Ulan Bator and Beijing is at the sum center. In 2009, its population was 3,598.[1]