| Named By: | E. Henning in 1922 |
| Time Period: | Late Triassic-Early Jurassic |
| Location: | China - Lufeng Formation. Germany - Exter Formation. United Kingdom (England and Wales). USA, Arizona - Kayenta Formation |
| Size: | About 30 centimetres long |
| Diet: | Carnivore/Insectivore |
| Fossil(s): | Partial remains |
| Classification: | | Chordata | Synapsida | Therapsida | Cynodontia | Tritylodontidae | |
| Also known as: | | Chalepotherium plieningeri | Mucrotherium | Uniserium | |
Oligokyphus is an extinct advanced herbivorous cynodont of the late Triassic to early Jurassic periods. Originally considered to be an early mammal, it is now classified as a Mammaliamorph (nearly a mammal) because Oligokyphus does not have the mammalian jaw attachments and it retains a vestigial joint between the quadrate bone and the squamosal bone in the skull.