Odorrana schmackeri (common names: Schmacker's frog, Piebald odorous frog, Kaochahien frog) is a species of frog in the Ranidae family that is endemic to China. It is distributed in southern and south-central China. Reports from Thailand and Vietnam require confirmation. Its natural habitats are streams of different sizes and the surrounding forests. It is considered as of "Least Concern" by the International Union for Conservation of Nature (IUCN), although habitat loss and exploitation are threats to this species.