| Named By: | Osmolska in 1996 |
| Time Period: | Late Cretaceous, 70 Ma |
| Location: | Mongolia - Nemegt Formation |
| Size: | Femur 31.5 centimetres long, Tibia 36.5 centimetres long, Fibula 31.5 centimetres long. Total body size is uncertain due to much of the skeleton being missing, but roughly estimated on this website to be about 2.7 meters long |
| Diet: | Carnivore |
| Fossil(s): | Mandible (lower jaw) and partial post cranial remains, including the upper legs, pelvis and caudal vertebrae |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | |
Bagaraatan (meaning "small hunter" in Mongolian) was a genus of theropod dinosaur from the Late Cretaceous period. Its fossils were found in the Nemegt Formation of Mongolia. Bagaraatan may have been around 3-4 metres in length.
The type species, B. ostromi, was described by Osmolska in 1996. The post-cranial (ZPAL MgD-I/108) skeleton has been described as "bird-like", while the skull exhibits features of several different theropod groups.