Cnemaspis neangthyi, also known commonly as Neang Thy's rock gecko, is an endangered species of lizard in the family Gekkonidae. The species is endemic to Cambodia.
The specific name, neangthyi, is in honor of Cambodian herpetologist (born 1970).
Cnemaspis neangthyi is found in the Cardamom Mountains in Pursat Province, Cambodia.
The preferred natural habitat of Cnemaspis neangthyi is boulders and rock cliff faces in forest, at elevations around .
The maximum recorded snout-to-vent length (SVL) for Cnemaspis neangthyi is . Dorsally, it has a light-colored chevron between the shoulders. The tip of the tail is white with black specks.
Cnemaspis neangthyi is nocturnal, terrestrial, and saxicolous (rock-dwelling).
Cnemaspis neangthyi is oviparous.