Hyopsodus

thumb|left|Restoration of Hyopsodus paulus

Hyopsodus is a genus of extinct early ungulate mammal of the family Hyopsodontidae, a group associated with or basal to the Perissodactyla. It was a small mammal with skull of about 6 cm in length. Fossils of this genus have been found in the Eocene of North America, especially the Bighorn Basin region of the United States. It has also been found in Eurasia.