Notochoerus is an extinct genus of very large pigs from the subfamily Tetraconodontinae.

Fossils have been found in Africa, notably Uganda and Ethiopia.

[1] Notochoerus were among the largest pigs ever, with adults weighing up to 450 kg (990 lb).

Like other tetraconodontine pigs, the males had ornamental growths on their skulls, formed from enamel.

Notochoerus is believed to have been specialised for arid environments and fed on abrasive vegetation, and some researchers attribute this supposed overspecialisation to have caused the Notochoerus to be maladapted for more variable environments.