Leptopelis millsoni is a species of frog in the family Arthroleptidae. It is found in southeastern Nigeria, Cameroon, the Central African Republic, Equatorial Guinea, Gabon, the Republic of the Congo, the eastern Democratic Republic of the Congo, and northwestern Angola. Common names Niger forest treefrog (perhaps referring to the mouth of the Niger River, its type locality.) and Millson's Tree Frog have been coined for it. There is a need of taxonomic revision of this taxon.