The Mananara River is one of the main rivers in north-eastern Madagascar. Its mouth is located in the Bay of Antongil near the city of Mananara Nord in the Ambatosoa region.
References Aldegheri, Marius. Rivers and Streams on Madagascar, in Battistini, Rene & G. Richard-Vindard (ed.), Biogeography and Ecology in Madagascar, p. 266–67 (1972))