Tugulusaurus (meaning "Tugulu lizard") is a genus of coelurosaurian theropod dinosaur that belongs to the Alvarezsauroidea.

In 1973 a number of these were described by paleontologist Dong Zhiming, among them the bones of a small theropod which he named Tugulusaurus faciles.

The specific name is derived from Latin facilis, here with the meaning of "easily moving", referring to the agility of the animal as indicated by its "delicate bones".

[4] However, in 2005 Oliver Rauhut and Xu Xing concluded that it is a valid genus of basal coelurosaurian of unknown affinities.

[2] In their cladistic analysis of the newly described taxa Bannykus and Xiyunykus, Xu et al. (2018) recovered Tugulusaurus as a member of Alvarezsauria.