| Kanakarayan Aru | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Sri Lanka |
| Subdivision Type2: | Province |
| Subdivision Name2: | Northern Province |
| Subdivision Type3: | Districts |
| Subdivision Name3: | Vavuniya, Mullaitivu, Kilinochchi |
| Length: | 86km (53miles) |
| Source1 Location: | Vavuniya District |
| Mouth: | Chundikkulam Lagoon |
| Basin Size: | 906km2 |
The Kanakarayan Aru is a river in Northern Province, Sri Lanka. The river rises in eastern Vavuniya District, near Omanthai, and flows north through Vavuniya District, Mullaitivu District and Kilinochchi District. It empties into the Chundikkulam Lagoon.[1]