| Named By: | C. A. Sidor & B. S. Rubidge in 2006 |
| Time Period: | Late Permian |
| Location: | South Africa - Teekloof Formation |
| Size: | Skull 13 centimetres long. Total length roughly estimated about 1 meter long |
| Diet: | Carnivore |
| Fossil(s): | Skulls and mandible (lower jaw), from two individuals |
| Classification: | | Chordata | Synapsida | Therapsida | Biarmosuchia | |
Herpetoskylax is an extinct genus of synapsid biarmosuchian which existed in South Africa. The type species is Herpetoskylax hopsoni. It lived in the Late Permian Period.
The genus name means 'reptile-puppy', from the Ancient Greek herpeto- (erpeton, 'creeping animal') and skylax (skulax, 'young dog'). The juxtaposition of reptilian and mammalian names highlights the transitional characters of therapsids.