Sinocoelurus (meaning "Chinese hollow tail", in reference to location and to relate the new genus to the North American Coelurus) is a genus of theropod dinosaur from the Oxfordian-?Tithonian-age Upper Jurassic Kyangyan Series of Sichuan, China.

In 1942, the Chinese paleontologist Yang Zhongjian (in older references his name is given as C. C. Young) named this genus from IVP AS V232-234, a group of four isolated partial teeth found near Weiyuan, Guangyuan, Sichuan Basin.

He described them as "long, slender, moderately curved and compressed; ridged anterior and posterior sides with no trace of serrations; enamel very thin".

[2] Because of the small amount of material, Sinocoelurus has attracted little attention since its description, outside of reviews.

The most recent review classifies it as Tetanurae incertae sedis and dubious,[3] while Wu et al. (2009) presume it belongs to a plesiosaur;[4] either way, Sinocoelurus was a reptile.