Theloderma nebulosum, the misty moss frog, is a species of frogs in the family Rhacophoridae. It is endemic to central Vietnam and currently only known from Ngọc Linh Nature Reserve in the Kon Tum Province. Only one female and a series of tadpoles collected in 2009-2010 are known. This species, together with Theloderma palliatum, was described by Australian and Vietnamese scientists in 2011.