Leptodactylus melanonotus is a species of frog in the family Leptodactylidae. It is found in Central America.

Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, subtropical or tropical mangrove forests, subtropical or tropical moist montane forests, dry savanna, moist savanna, subtropical or tropical seasonally wet or flooded lowland grassland, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, pastureland, plantations, rural gardens, urban areas, heavily degraded former forest, water storage areas, ponds, and canals and ditches.

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