| Lily River | |
| Subdivision Type1: | country |
| Subdivision Name1: | Madagascar |
| Subdivision Type2: | region |
| Subdivision Name2: | Itasy Region |
| Source1: | Lake Itasy |
| Mouth: | Sakay River |
| Mouth Coordinates: | -18.9958°N 46.499°W |
| River System: | Tsiribihina River |
The Lily River is a river in central Madagascar. It is the main outflow of Lake Itasy, and flows northwestward to join the Sakay River, a tributary of the Tsiribihina.[1]
The upper stretch of the river is in Itasy Region. The lower stretch of the river forms the boundary between Itasy Region on the north and Bongolava Region on the south.