| Named By: | Schmidt in 1927 |
| Time Period: | Late Permian, 265.1-254.17 Ma |
| Location: | South Africa - Teekloof Formation |
| Size: | Unavailable |
| Diet: | Carnivore |
| Fossil(s): | Partial remains |
| Classification: | | Chordata | Synapsida | Therapsida | Cynodontia | Epicynodontia | Galesauridae | |
Cynosaurus is an extinct genus of non-mammalian synapsid. Remains have been found from the Dicynodon Assemblage Zone in South Africa.