| Named By: | Robert Broom in 1912 |
| Time Period: | Lower Jurassic |
| Location: | South Africa. Possibly also Ukraine and United Kingdom |
| Size: | Unavailable |
| Diet: | Carnivore |
| Fossil(s): | Partial remains |
| Classification: | | Chordata | Synapsida | Therapsida | Cynodontia | Trithelodontidae | |
Trithelodon was an extinct genus of cynodontian therapsid that lived during the Lower Jurassic in modern South Africa. Like cynodonts, it had many traits shared by mammals. Trithelodonts were probably insectivores, and nocturnal animals.