| Named By: | Haughton in 1917 |
| Time Period: | Early Triassic |
| Location: | Antarctica - Fremouw Formation. South Africa - Normandien Formation |
| Size: | Unavailable |
| Diet: | Herbivore |
| Fossil(s): | Partial remains |
| Classification: | | Chordata | Synapsida | Therapsida | Dicynodont | |
Myosaurus is an extinct genus of dicynodont found primarily in Antarctica and South Africa.