| Named By: | S. H. Haughton in 1924 |
| Time Period: | Late Permian[1] 259-252.3 Ma |
| Location: | South Africa.Tanzania |
| Size: | About 1.2 meters long for S. laticeps, to up to 2.5 meters long for S. kingoriensis |
| Diet: | Carnivore |
| Fossil(s): | Various individuals |
| Classification: | | Chordata | Synapsida | Therapsida | Gorgonopsidae | Rubidgeinae | |
| Also known as: | | Aelurognathus haughtoni | Cephalicustriodus kingoriensis | Leontosaurus | Lycaenops kingoriensis | Ruhuhucerberus terror | Sycosaurus vanderhorsti Sigogneau | |
Sycosaurus is an extinct genus of rubidgeine gorgonopsian. It was medium-sized, about 1.2 m in length. It was first named by Haughton in 1924, and contains two species, S. laticeps and S. nowaki.