Deduru Oya
| Deduru Oya | |
|---|---|
| Aerial view of the mouth of Deduru River, Chilaw. | |
| Physical characteristics | |
| Source | |
| • location | Kurunegala District | 
| Mouth | |
|  • location | Chilaw | 
|  • coordinates | 07°36′50″N 79°48′12″E / 7.61389°N 79.80333°E | 
|  • elevation | Sea level | 
| Length | 142 km (88 mi) | 
| Basin size | 2,620 km2 (1,010 sq mi) | 
The Deduru Oya is the sixth-longest river of Sri Lanka. The 142 km (88 mi) long river runs across four provinces and five districts.