| Kodalikkallu Aru | |
| River | |
| Country | Sri Lanka |
|---|---|
| State | Northern Province |
| District | Mullaitivu District |
| Source | Mullaitivu District |
| Mouth | Nanthi Kadal |
| - elevation | 0 m (0 ft) |
| Length | 19 km (12 mi) |
| Basin | 74 km2 (29 sq mi) |
Kodalikkallu Aru is a small river in Northern Province, Sri Lanka. The river rises in south-east Mullaitivu District, before flowing north-east/north through Mullaitivu District. The river empties into Nanthi Kadal lagoon.