Kopili River
| Kopili River | |
|---|---|
| Kopili River at Nagaon | |
| Location | |
| Country | India | 
| Location | Assam, Meghalaya | 
| Physical characteristics | |
| Source | |
| • location | Meghalaya plateau | 
| Mouth | |
|  • location | Brahmaputra River | 
| Length | 290 km (180 mi) | 
Kopili River is an interstate river in Northeast India that flows through the states of Meghalaya and Assam and is the largest south bank tributary of the Brahmaputra in Assam.