Theloderma khoii, or Khoi's mossy frog, is a species of frog in the family Rhacophoridae. It is endemic to northern Vietnam and southern China's Yunnan Province. It has been observed between 1320 and 1750 meters above sea level in Vietnam and about 1600 meters above sea level in China.

The dorsal side of Theloderma khoii is green or olive with mossy markings, which makes