Melanobatrachus is a genus of narrow-mouthed frogs in the family Microhylidae. It is the only remaining genus in the monotypic subfamily Melanobatrachinae. Two African genera, Hoplophryne and Parhoplophryne , that were previously placed in this subfamily are now in a subfamily of their own, Hoplophryninae. It contains a single species, Melanobatrachus indicus, also known as the Indian black microhylid frog and Malabar black narrow-mouthed frog. It is endemic to wet evergreen forests of southern Western Ghats in Kerala and Tamil Nadu states of India. It has been recorded from Anaimalai, Munnar, Palni hills, Periyar Tiger Reserve and Kalakkad Mundanthurai Tiger Reserve