The Quang khem ("slow-running deer") or Chinh's deer is an animal resembling a deer, found in the Pu Mat region of Vietnam, close to Vu Quang. It first came to scientific attention through the work of biologist Nguyen Ngoc Chinh.
It is curious for its antlers, which, unlike those of other deer, are unpronged, in fact resembling the curled horns of an antelope. Quang khem skulls culled by Dr Nguyen have been sent to Copenhagen University, where they are being studied by Dr Peter Arctander, who has so far been unable to relate them to any known deer species. As a result, its taxonomic status remains undefined and no binomial name has been assigned yet.