List of marine mammals of Australia
This is the list of marine mammals found in Australian waters. It is a sub-list of the list of mammals of Australia.
Conservation status listed follows the IUCN Red List of Threatened Species :- Southern right whale, Eubalaena australis
- Pygmy right whale, Caperea marginata
- Minke whale, Balaenoptera acutorostrata
- Southern minke whale, Balaenoptera bonaerensis
- Sei whale, Balaenoptera borealis
- Pygmy Bryde's whale, Balaenoptera edeni
- Omura's whale, Balaenoptera omurai
- Blue whale, Balaenoptera musculus
- Fin whale, Balaenoptera physalus
- Humpback whale, Megaptera novaeangliae
- Short-beaked common dolphin, Delphinus delphis
- Pygmy killer whale, Feresa attenuata
- Short-finned pilot whale, Globicephala macrorhynchus
- Long-finned pilot whale, Globicephala melas
- Risso's dolphin, Grampus griseus
- Fraser's dolphin, Lagenodelphis hosei
- Hourglass dolphin, Lagenorhynchus cruciger
- Dusky dolphin, Lagenorhynchus obscurus
- Southern right whale dolphin, Lissodelphis peronii
- Irrawaddy dolphin, Orcaella brevirostris
- Australian snubfin dolphin, Orcaella heinsohni
- Orca, Orcinus orca
- Melon-headed whale, Peponocephala electra
- False killer whale, Sousa chinensis
- Pantropical spotted dolphin, Stenella attenuata
- Striped dolphin, Stenella coeruleoalba
- Spinner dolphin, Stenella longirostris
- Rough-toothed dolphin, Steno bredanensis
- Indo-Pacific bottlenose dolphin, Tursiops aduncus
- Burrunan dolphin, Tursiops australis
- Bottlenose dolphin, Tursiops truncatus
- Pygmy sperm whale, Kogia breviceps
- Dwarf sperm whale, Kogia simus
- Spectacled porpoise, Phocoena dioptrica
- Sperm whale, Physeter macrocephalus
- Arnoux's beaked whale, Berardius arnuxii
- Southern bottlenose whale, Hyperoodon planifrons
- Longman's beaked whale, Indopacetus pacificus
- Andrews' beaked whale, Mesoplodon bowdoini
- Blainville's beaked whale, Mesoplodon densirostris
- Ginkgo-toothed beaked whale, Mesoplodon ginkgodens
- Gray's beaked whale, Mesoplodon grayi
- Hector's beaked whale, Mesoplodon hectori
- Strap-toothed whale, Mesoplodon layardii
- True's beaked whale, Mesoplodon mirus
- Shepherd's beaked whale, Tasmacetus shepherdi
- Cuvier's beaked whale, Ziphius cavirostris
Dugongidae
- New Zealand fur seal, Arctocephalus forsteri
- Antarctic fur seal, Arctocephalus gazella
- Australian fur seal, Arctocephalus pusillus
- Subantarctic fur seal, Arctocephalus tropicalis
- Australian sea lion, Neophoca cinerea
- New Zealand sea lion, Phocarctos hookeri
- Leopard seal, Hydrurga leptonyx
- Weddell seal, Leptonychotes weddellii
- Crabeater seal, Lobodon carcinophaga
- Southern elephant seal, Mirounga leonina
- Ross seal, Ommatophoca rossii
