The Niger forest tree frog, Leptopelis millsoni, is a species of frog in the Hyperoliidae family found in Cameroon, the Central African Republic, the Republic of the Congo, the Democratic Republic of the Congo, Equatorial Guinea, Gabon, and Nigeria.Its natural habitats are subtropical or tropical moist lowland forests, rivers, intermittent freshwater marshes, pastureland, and heavily degraded former forests.It is threatened by habitat loss.