
The list of mammals of Washington lists mammalian species that live in the U.S. state of Washington,[1][2] including 9 introduced mammal species.[3] The list does not include species found exclusively in captivity.
Opossums

Family: Didelphidae
- Virginia opossum, Didelphis virginiana introduced[4]
 
Shrews and moles

Family: Soricidae
- Marsh shrew, Sorex bendirii
 - Cinereus shrew, Sorex cinereus
 - American pygmy shrew, Sorex hoyi
 - Merriam's shrew, Sorex merriami
 - Montane shrew, Sorex monticolus
 - Preble's shrew, Sorex preblei
 - Olympic shrew, Sorex rohweri
 - Trowbridge's shrew, Sorex trowbridgii
 - Vagrant shrew, Sorex vagrans
 
Family: Talpidae
- American shrew mole, Neurotrichus gibbsii
 - Coast mole, Scapanus orarius
 - Townsend's mole, Scapanus townsendii
 
Bats
.jpg.webp)
Family: Vespertilionidae
- Pallid bat, Antrozous pallidus
 - Townsend's big-eared bat, Corynorhinus townsendii
 - Big brown bat, Eptesicus fuscus
 - Spotted bat, Euderma maculatum
 - Silver-haired bat, Lasionycteris noctivagans
 - Hoary bat, Lasiurus cinereus
 - California myotis, Myotis californicus
 - Western small-footed myotis, Myotis ciliolabrum
 - Long-eared myotis, Myotis evotis
 - Keen's myotis, Myotis keenii
 - Little brown myotis, Myotis lucifugus
 - Fringed myotis, Myotis thysanodes
 - Long-legged myotis, Myotis volans
 - Yuma myotis, Myotis yumanensis
 - Canyon bat, Parastrellus hesperus
 
Lagomorphs

Family: Ochotonidae
- American pika, Ochotona princeps
 
Family: Leporidae
- Pygmy rabbit, Brachylagus idahoensis
 - Snowshoe hare, Lepus americanus
 - Black-tailed jackrabbit, Lepus californicus
 - White-tailed jackrabbit, Lepus townsendii
 - European rabbit, Oryctolagus cuniculus introduced
 - Eastern cottontail, Sylvilagus floridanus
 - Mountain cottontail, Sylvilagus nuttallii
 
Rodents

Family: Aplodontiidae
- Mountain beaver, Aplodontia rufa
 
Family: Sciuridae
- Eastern gray squirrel, Sciurus carolinensis introduced[5]
 - Western gray squirrel, Sciurus griseus
 - Fox squirrel, Sciurus niger
 - Douglas squirrel, Tamiasciurus douglasii
 - American red squirrel, Tamiasciurus hudsonicus
 - Hoary marmot, Marmota caligata
 - Yellow-bellied marmot, Marmota flaviventris
 - Olympic marmot, Marmota olympus
 - California ground squirrel, Otospermophilus beecheyi
 - Golden-mantled ground squirrel, Callospermophilus lateralis
 - Cascade golden-mantled ground squirrel, Callospermophilus saturatus
 - Columbian ground squirrel, Urocitellus columbianus
 - Piute ground squirrel, Urocitellus mollis
 - Townsend's ground squirrel, Urocitellus townsendii
 - Washington ground squirrel, Urocitellus washingtoni
 - Yellow-pine chipmunk, Tamias amoenus
 - Least chipmunk, Tamias minimus
 - Red-tailed chipmunk, Tamias ruficaudus
 - Townsend's chipmunk, Tamias townsendii
 - Northern flying squirrel, Glaucomys sabrinus
 
Family: Castoridae
- American beaver, Castor canadensis
 
Family: Heteromyidae
- Ord's kangaroo rat, Dipodomys ordii
 - Great Basin pocket mouse, Perognathus parvus
 
Family: Geomyidae
- Mazama pocket gopher, Thomomys mazama
 - Northern pocket gopher, Thomomys talpoides
 
Family: Dipodidae
- Western jumping mouse, Zapus princeps
 - Pacific jumping mouse, Zapus trinotatus
 
Family: Cricetidae
- Sagebrush vole, Lemmiscus curtatus
 - Gray-tailed vole, Microtus canicaudus
 - Long-tailed vole, Microtus longicaudus
 - Montane vole, Microtus montanus
 - Creeping vole, Microtus oregoni
 - Western meadow vole, Microtus drummondii
 - Water vole, Microtus richardsoni
 - Townsend's vole, Microtus townsendii
 - Southern red-backed vole, Clethrionomys gapperi
 - Muskrat, Ondatra zibethicus
 - Western heather vole, Phenacomys intermedius
 - Northern bog lemming, Synaptomys borealis
 - Bushy-tailed woodrat, Neotoma cinerea
 - Northern grasshopper mouse, Onychomys leucogaster
 - Western deer mouse, Peromyscus sonoriensis
 - Northwestern deer mouse, Peromyscus keeni
 - Western harvest mouse, Reithrodontomys megalotis
 
Family: Muridae
- House mouse, Mus musculus introduced
 - Norway rat, Rattus norvegicus introduced
 - Black rat, Rattus rattus introduced
 
Family: Erethizontidae
- North American porcupine, Erethizon dorsatum
 
Family: Myocastoridae
- Nutria, Myocastor coypus introduced
 
Carnivorans
.jpg.webp)
Family: Canidae
- Coyote, Canis latrans
 - Gray wolf, Canis lupus
 - Gray fox, Urocyon cinereoargenteus
 - Red fox, Vulpes vulpes
 
Family: Ursidae
- American black bear, Ursus americanus
 - Brown bear, Ursus arctos 
- Grizzly bear, U. a. horribilis
 
 
Family: Otariidae
- Northern fur seal, Callorhinus ursinus
 - Steller sea lion, Eumetopias jubatus
 - California sea lion, Zalophus californianus
 
Family: Phocidae
- Northern elephant seal, Mirounga angustirostris
 - Harbor seal, Phoca vitulina
 
Family: Procyonidae
- Raccoon, Procyon lotor
 
Family: Mephitidae
- Striped skunk, Mephitis mephitis
 - Western spotted skunk, Spilogale gracilis
 
Family: Felidae
- Canada lynx, Lynx canadensis
 - Bobcat, Lynx rufus
 - Cougar, Puma concolor
 
Family: Mustelidae
- Sea otter, Enhydra lutris
 - North American river otter, Lontra canadensis
 - Long-tailed weasel, Neogale frenata
 - American mink, Neogale vison
 - Fisher, Pekania pennanti
 - American ermine, Mustela richardsonii
 - Wolverine, Gulo gulo
 - Pacific marten, Martes caurina
 - American badger, Taxidea taxus
 
Whales, dolphins and porpoises

Family: Balaenidae
- North Pacific right whale, Eubalaena japonica[6]
 
Family: Balaenopteridae
- Minke whale, Balaenoptera acutorostrata
 - Sei whale, Balaenoptera borealis
 - Blue whale, Balaenoptera musculus
 - Fin whale, Balaenoptera physalus
 - Humpback whale, Megaptera novaengliae
 - Gray whale, Eschrictius robustus
 
Family: Delphinidae
- Common dolphin, Delphinus delphis
 - Risso's dolphin, Grampus griseus
 - Pacific white-sided dolphin, Lagenorynchus obliquidens
 - Northern right whale dolphin, Lissodelphis borealis
 - Orca, Orcinus orca
 
Family: Monodontidae
- Beluga whale, Delphinapterus leucas vagrant[7]
 
Family: Phocoenidae
- Harbor porpoise, Phocoena phocoena
 - Dall's porpoise, Phocoenoides dalli
 
Family: Physeteridae
- Pygmy sperm whale, Kogia breviceps
 - Dwarf sperm whale, Kogia sima
 - Sperm whale, Physeter catodon
 
Family: Ziphiidae
- Baird's beaked whale, Berardius bairdii
 - Hubbs' beaked whale, Mesoplodon carlhubbsi
 - Stejneger's beaked whale, Mesoplodon stejnegeri
 - Cuvier's beaked whale, Ziphius cavirostris
 
Even-toed ungulates

Family: Antilocapridae
Family: Bovidae
- American bison, Bison bison reintroduced[9]
 - Mountain goat, Oreamnos americanus
 - Bighorn sheep, Ovis canadensis
 
Family: Cervidae
- Moose, Alces alces
 - Elk, Cervus canadensis
 - Mule deer, Odocoileus hemionus
 - White-tailed deer, Odocoileus virginianius
 - Caribou, Rangifer tarandus extirpated 
- Boreal woodland caribou, R. t. caribou extirpated
 
 
References
- ↑ Species in Washington
 - ↑ Larrison, E.J. (1970). Washington Mammals: Their Habits, Identification and Distribution. United States:Seattle Audubon Society.
 - ↑ "Mammals of Washington". Burke Museum. Retrieved 2013-10-29.
 - ↑ "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 2023-01-15.
 - ↑ "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 2023-01-15.
 - ↑ "North Pacific Right Whale". NOAA Fisheries. Retrieved 2023-01-15.
 - ↑ Norman, Stephanie A.; King, Cathy; Lambourn, Dyanna; Veirs, Scott; Dougherty, Michael; Mclean, Casey; Frankfurter, Greg; Parsons, Kim; Cise, Amy Van; Berta, Susan; Garrett, Howard; Brooks, Alisa; Wilkinson, Kristin (April 2022). "Species account: A lone beluga whale visits the Salish Sea". Encyclopedia of Puget Sound.
 - ↑ Stepniewski, Andy (2021-06-30). "Wildlife Moment: Fleet-of-foot pronghorns return to Washington". Yakima Herald Republic. Retrieved 2021-06-30.
 - ↑ Ayer, Tammy (2018-08-28). "After More Than 20 Years, Healthy Bison Herd on Yakama Reservation a Point of Pride". The Chronicle. Retrieved 2018-08-28.