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.

Balaenidae

 * Southern Right Whale, Eubalaena australis

Balaenopteridae

 * Minke Whale, Balaenoptera acutorostrata
 * Southern Minke Whale, Balaenoptera bonaerensis
 * Sei Whale, Balaenoptera borealis
 * Pygmy Bryde's Whale, Balaenoptera edeni
 * Blue Whale, Balaenoptera musculus
 * Fin Whale, Balaenoptera physalus
 * Humpback Whale, Megaptera novaeangliae

Delphinidae

 * 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 Rightwhale Dolphin, Lissodelphis peronii
 * Irrawaddy Dolphin, Orcaella brevirostris
 * Australian Snubfin Dolphin, Orcaella heinsohni
 * Orca (Killer Whale), Orcinus orca
 * Melon-headed Whale, Peponocephala electra
 * False Killer Whale, Pseudorca crassidens
 * Indo-Pacific Hump-backed Dolphin, 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
 * Bottlenose Dolphin, Tursiops truncatus

Kogiidae

 * Pygmy Sperm Whale, Kogia breviceps
 * Dwarf Sperm Whale, Kogia simus

Phocoenidae

 * Spectacled Porpoise, Phocoena dioptrica

Physeteridae

 * Sperm Whale, Physeter macrocephalus

Ziphiidae

 * 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

Sirenia
Dugongidae
 * Dugong, Dugong dugon

Otariidae

 * 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

Phocidae

 * Leopard Seal, Hydrurga leptonyx
 * Weddell Seal, Leptonychotes weddelli
 * Crabeater Seal, Lobodon carcinophaga
 * Southern Elephant Seal, Mirounga leonina
 * Ross Seal, Ommatophoca rossi