| Onive River | |
| Map: | Rijeka mangoro.png |
| Subdivision Type1: | Country |
| Subdivision Name1: | Madagascar |
| Source1 Location: | Antanifotsy |
| Mouth Location: | Mangoro River |
| Mouth Coordinates: | -19.7049°N 48.0475°W |
| Basin Size: | 4860km2 |
The Onive River is a river in eastern Madagascar. It flows down from the Ankaratra massif, and is the largest tributary of the Mangoro River.[1] [2]
Notable waterfalls, with a 30m vertical drop, are located southwest of the village of Tsinjoarivo.[3]