Tasmanian mammals are divided into three major groups based on reproductive techniques: egg laying mammals (the monotremes), pouched mammals (the marsupials), and placental mammals. This is a list of mammals of Tasmania:

• Family: Ornithorhynchidae
  • Genus: Ornithorhynchus
    • Platypus, Ornithorhynchus anatinus LC
• Family: Tachyglossidae
  • Genus: Tachyglossus
    • Short-beaked echidna, Tachyglossus aculeatus LC

• Family: Thylacinidae
  • Genus: Thylacinus
    • Thylacine, T. cynocephalus EX endemic
• Family: Dasyuridae
  • Subfamily: Dasyurinae
    • Tribe: Dasyurinae
      • Genus: Dasyurus
        • Tiger quoll, D. maculatus NT
        • Eastern quoll, D. viverrinus EN endemic (introduced to Australian mainland)
      • Genus: Sarcophilus
        • Tasmanian devil, S. harrisii EN endemic
    • Tribe: Phascogalini
      • Genus: Antechinus
        • Swamp antechinus, A. minimus EN
        • Dusky antechinus, A. swainsonii EN
  • Subfamily: Sminthopsinae
    • Tribe: Sminthopsini
      • Genus: Sminthopsis
        • White-footed dunnart, S. leucopus VU

• Family: Peramelidae
  • Subfamily: Peramelinae
    • Genus: Isoodon
      • Southern brown bandicoot, Isoodon obesulus LC
    • Genus: Perameles
      • Eastern barred bandicoot, Perameles gunnii NT

• Family: Vombatidae
  • Genus: Vombatus
    • Common wombat, Vombatus ursinus LC

• Family: Phalangeridae
  • Genus: Trichosurus
    • Common brushtail possum, Trichosurus vulpecula LC
• Family: Burramyidae
  • Genus: Cercartetus
    • Tasmanian pygmy possum, Cercartetus lepidus LC
    • Eastern pygmy possum, Cercartetus nanus LC
• Family: Petauridae
  • Genus: Petaurus
    • Krefft's glider, Petaurus notatus introduced (Australian mainland native)
• Family: Pseudocheiridae
  • Genus: Pseudocheirus
    • Common ringtail possum, Pseudocheirus peregrinus LC

• Family: Potoroidae
  • Genus: Bettongia
    • Southern bettong, Bettongia gaimardi endemic NT
  • Genus: Potorous
    • Long-nosed potoroo, Potorous tridactylus LC
• Family: Macropodidae
  • Genus: Macropus
    • Eastern grey kangaroo, Macropus giganteus LC
  • Genus: Notamacropus
    • Red-necked wallaby, N. rufogriseus LC
  • Genus: Thylogale
    • Tasmanian pademelon, Thylogale billardierii endemic LC

• Family: Cervidae
  • Subfamily: Cervinae
    • Genus: Dama
      • Common fallow deer, Dama dama introduced

• Family: Otariidae (eared seals)
  • Genus: Arctocephalus
    • Cape fur seal, Arctocephalus pusillus LC
    • New Zealand fur seal, Arctocephalus fosteri LC
• Family: Phocidae (true seals)
  • Genus: Mirounga
    • Southern elephant seal, Mirounga leonina LC
  • Genus: Hydrurga
    • Leopard seal, Hydrurga leptonyx LC

• Family: Vespertilionidae
  • Genus: Vespadelus
    • Little forest bat, Vespadelus vulturnus LR/lc
    • Southern forest bat, Vespadelus regulus LR/lc
    • Large forest bat, Vespadelus darlingtoni LR/lc
  • Genus: Chalinolobus
    • Chocolate wattled bat, Chalinolobus morio LC
    • Gould's wattled bat, Chalinolobus gouldii LR/lc
  • Genus: Nyctophilus
    • Lesser long-eared bat, Nyctophilus geoffroyi LC
    • Greater long-eared bat, Nyctophilus timoriensis DD
  • Genus: Falsistrellus
    • Eastern false pipistrelle, Falsistrellus tasmaniensis LC

• Family: Leporidae (rabbits and hares)
  • Genus: Oryctolagus
    • European rabbit, Oryctolagus cuniculus introduced
  • Genus: Lepus
    • European hare, Lepus europaeus introduced

• Family: Muridae
  • Genus: Hydromys
    • Rakali, Hydromys chrysogaster LC
  • Genus: Mus
    • House mouse, Mus musculus LC introduced
  • Genus: Pseudomys
    • Long-tailed mouse, Pseudomys higginsi LR/lc endemic
    • New Holland mouse, Pseudomys novaehollandiae VU
  • Genus: Mastacomys
    • Broad-toothed mouse, Mastacomys fuscus NT
  • Genus: Rattus
    • Swamp rat, Rattus lutreolus LR/lc
    • Black rat, Rattus rattus LC introduced
    • Brown rat, Rattus norvegicus LC introduced

• Family: Delphinidae (dolphins)
  • Genus: Globicephala
    • Long-finned pilot whale, Globicephala melaena DD
  • Genus: Orcinus
    • Killer whale, Orcinus orca DD
  • Genus: Pseudorca
    • False killer whale, Pseudorca crassidens DD
  • Genus: Delphinus
    • Short-beaked common dolphin, Delphinus delphis LC
  • Genus: Tursiops
    • Common bottlenose dolphin, Tursiops truncatus LC
• Family: Physeteridae (sperm whales)
  • Genus: Physeter
    • Sperm whale, Physeter catodon VU

• Family: Balaenidae (right whales)
  • Genus: Eubalaena
    • Southern right whale, Eubalaena australis LC
  • Genus: Caperea
    • Pygmy right whale, Caperea marginata DD
  • Genus: Megaptera
    • Humpback whale, Megaptera novaeangliae LC

• List of mammals of Australia
  • List of bats of Australia
  • List of rodents of Australia
  • List of marine mammals of Australia
• List of monotremes and marsupials

• Tasmanian Parks and Wildlife list of Mammals
• DPIW - Complete list of Tasmania's mammals
• List of introduced vertebrates of Tasmania