| Named By: | Richard Owen in 1837 |
| Time Period: | Late Miocene-Late Pleistocene (Mayoan-Lujanian)~11.6-0.011 Ma |
| Location: | South America |
| Size: | 2.7 meters long, 1.5 meters high |
| Diet: | Herbivore |
| Fossil(s): | Multiple specimens |
| Classification: | | Chordata | Mammalia | Toxodontidae | |
Toxodon (meaning "bow tooth") is an extinct genus of South American mammals from the Late Miocene to Late Pleistocene epochs (Mayoan to Lujanian in the SALMA classification) (about 11.6 million to 16,500 years ago). It is a member of Notoungulata, one of several now extinct orders of hoofed mammals indigenous to South America. It was among the largest and last members of its order, and was probably the most common large-hoofed South American mammal of its time.