Albinykus (meaning "Albin claw", after a term used by Mongolian shamans to describe light phenomena in the Gobi Desert) is a genus of alvarezsaurid dinosaur.

Fossils have been found from Late Cretaceous-age (Santonian) Javkhlant Formation in the Gobi Desert of Mongolia.

The type species A. baatar was named by Sterling J. Nesbitt, Julia A. Clarke, Alan H. Turner and Mark A. Norell in 2011.

The body size of alvarezsaurs decreased throughout their evolutionary history, and Albinykus represents a particularly derived form.

The holotype skeleton of Albinykus, specimen IGM 100/3004 consisting of the pelvis and the hindlimbs, is postured in a sitting position with feet tucked underneath the body.