| Named By: | Christian von Meyer in 1861 |
| Time Period: | Late Triassic, 216-204 Ma |
| Location: | Germany |
| Size: | Uncertain due to lack of remains |
| Diet: | Carnivore |
| Fossil(s): | Partial right maxilla (tooth bearing bone of the upper jaw) with teeth |
| Classification: | | Chordata | Sauropsida | Archosauromorpha | Rauisuchidae | |
Teratosaurus is a genus of rauisuchians known from the Triassic Stubensandstein (Lowenstein Formation - Norian stage) of Germany.