| Named By: | Sergei Kurzanov in 1981 |
| Time Period: | Late Cretaceous, 70 Ma |
| Location: | Mongolia - Nemegt Formation |
| Size: | 1.5 meters long |
| Diet: | Usually thought to be an omnivore or herbivore though has been suggested to be an insectivore |
| Fossil(s): | Numerous specimens |
| Classification: | | Chordata | Reptilia | Dinosauria | Theropoda | Oviraptorosauria | Oviraptoridae | Elmisaurinae | |
Avimimus ( AY-vi-MY-mas), meaning "bird mimic" (Latin avis = bird + mimus = mimic), was a genus of oviraptorosaurian theropod dinosaur, named for its bird-like characteristics, that lived in the late Cretaceous in what is now Mongolia, around 70 million years ago.