Gephyromantis boulengeri, sometimes known as Boulenger's Madagascar frog, is a species of frog in the family Mantellidae. It is endemic to Madagascar and found in the northeastern and eastern Madagascar as well as in Île Sainte-Marie. Its natural habitats are rainforests but it can also be found in degraded forests and in invasive eucalyptus forests within the rainforest belt at elevations up to 1,200 m (3,900 ft) above sea level. It is a common frog, although it is suspected to be in decline because of habitat loss and deterioration. However, it occurs in several protected areas.