| Named By: | Richard Owen in 1876 |
| Time Period: | Wuchiapingian - Changhsingian, 260-252 Ma |
| Location: | Southerm Africa |
| Size: | 2.5 meters long |
| Diet: | Herbivore |
| Fossil(s): | Several skeletons |
| Classification: | | Chordata | Reptilia | Procolophonomorpha | Procolophonia | Pareiasauridae | |
Pareiasaurus is an extinct genus of anapsid reptile from the Permian period. It was a typical member of its family, the pareiasaurs, which take their name from this genus.
Fossils have been for example found in the Beaufort Group.