| Named By: | Richard Owen in 1840 |
| Time Period: | Late Pliocene to Early Holocene, 2.5-0.010 Ma |
| Location: | North and South America |
| Size: | 4 meters long |
| Diet: | Herbivore |
| Fossil(s): | Multiple specimens, including some near complete individuals |
| Classification: | | Chordata | Mammalia | Xenarthra | Mylodontidae | |
Glossotherium (literally "Tongue Beast") was a genus of ground sloth. It was a heavily built animal with a length of about 4 metres (13 ft) snout to tail-tip, a weight estimated at 1002.6 kg (2210.4 lb), and could potentially assume a slight bipedal stance.