| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Mammalia |
| Order: | Carnivora |
| Suborder: | Pinnipedia |
| Family: | Odobenidae |
- Genus
- species – Common Name
- Odobenus
- divergens – Pacific walrus
- laptevi – Laptev Sea walrus
- rosmarus – Atlantic walrus
