Eremias buechneri, also known commonly as the Kaschar racerunner, is a species of lizard in the family Lacertidae. The species is endemic to China.
The specific name, buechneri, is in honor of German-Russian zoologist .
Within China, E. buechneri is found in Qinghai Province and Xinjiang Autonomous Region, both of which are in northwestern China.
The preferred natural habitat of E. buechneri is desert, at altitudes of .
E. buechneri is viviparous.