Plionarctos
| Plionarctos Temporal range:  | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Order: | Carnivora | 
| Family: | Ursidae | 
| Subfamily: | Tremarctinae | 
| Genus: | †Plionarctos Frick, 1926 | 
| Type species | |
| †Plionarctos edensis Frick, 1926 | |
| Species | |
| †P. edensis Frick, 1926 | |
Plionarctos is an extinct genus of short-faced bear endemic to North America from the Miocene to the Pliocene.