| Named By: | Mark Norell et al. in 2009 |
| Time Period: | Late Cretaceous, 70 Ma |
| Location: | Mongolia, Nemegt Formation |
| Size: | Up to 3 meters long |
| Diet: | unavailable |
| Fossil(s): | Skull and partial skeleton |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Theropoda | Troodontidae | |
Zanabazar is an extinct genus of troodontid theropod dinosaur from the Late Cretaceous of Mongolia. The genus was originally named by Rinchen Barsbold as a species of Saurornithoides, S. junior. In 2009 it was reclassified as its own genus, named after the first spiritual figurehead of Tibetan buddhism, Zanabazar. The holotype, GIN 100-1, includes a skull, vertebrae, and right hindlimb. Zanabazar was one of the most derived troodontids, and the second largest after Troodon.