| Mananara River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Madagascar |
| Subdivision Type2: | Region |
| Subdivision Name2: | Analanjirofo |
| Length: | 150km (90miles) |
| Discharge1 Location: | Near mouth |
| Discharge1 Avg: | (Period: 1971–2000)[1] |
| Mouth Location: | Bay of Antongil, Indian Ocean |
| Mouth Coordinates: | -16.1589°N 49.7517°W |
| Mouth Elevation: | 0m (00feet) |
| Basin Size: | [2] |
The Mananara River is one of the main rivers in north-eastern Madagascar. Its mouth is located in the Bay of Antongil, (Indian Ocean) near the city of Mananara Nord in the Analanjirofo region.