Oudenodon is an extinct genus of dicynodont.

It was common throughout southern Africa during the Late Permian.

[2] Both O. bainii, the type species, and O. grandis are known from South Africa.

[5] One species, O. sakamenensis, is the only Permian therapsid yet described from Madagascar.

[6] It is the type genus of the family Oudenodontidae, which includes members such as Tropidostoma.