| Named By: | Carpenter, Miles & Cloward in 2005 | 
| Time Period: | Late Jurassic, 153-150 Ma | 
| Location: | USA, Wyoming - Morrison Formation | 
| Size: | About 3.3 meters for the holotype which is a subadult, Fully grown adults probably up to about 4 meters long | 
| Diet: | Carnivore | 
| Fossil(s): | Incomplete skull, and almost complete post cranial remains, of a sub adult specimen | 
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Coelurosauria | Tyrannosauroidea | Coeluridae | | 
Tanycolagreus is a genus of coelurosaurian theropod from the Late Jurassic of North America.