Paus Rentang waktu: Eosen awal - sekarang
Tursiops truncatus
Klasifikasi ilmiah
Kerajaan:	Animalia
Filum:	Chordata
Kelas:	Mammalia
Subkelas:	Eutheria
Ordo:	Cetacea

Paus adalah sejenis mamalia yang hidup di lautan. Meskipun dalam bahasa Indonesia paus sering disebut ikan paus, paus sebenarnya bukanlah tergolong dalam keluarga ikan.

Paus balin

• Paus Sikat Atlantik Utara, Eubalaena glacialis
• Paus Sikat Pasifik Utara, Eubalaena japonica
• Paus Sikat Selatan, Eubalaena australis
• Paus Sirip, Balaenoptera physalus
• Paus Sei, Balaenoptera borealis
• Paus Bryde, Balaenoptera brydei
• Paus Bryde Kerdil, Balaenoptera edeni
• Paus Biru, Balaenoptera musculus
• Paus minke atau paus tombak , Balaenoptera acutorostrata
• Paus minke antarktika, Balaenoptera bonaerensis
• Balaenoptera omurai
• Paus Bungkuk, Megaptera novaeangliae
• Paus Kelabu, Eschrichtius robustus
• Paus Sikat Kerdil, Caperea marginata

Paus bergigi

• Paus Sperma, Physeter macrocephalus
• Dwarf Sperm Whale, Kogia sima
• Pygmy Sperm Whale, Kogia breviceps
• Cuvier's Beaked Whale, Ziphius cavirostris
• Arnoux's Beaked Whale, Berardius arnuxii
• Baird's Beaked Whale (North Pacific Bottlenose Whale), Berardius bairdii
• Shepherd's Beaked Whale (Tasman Beaked Whale), Tasmacetus shepherdi
• Longman's Beaked Whale (Indo-Pacific Beaked Whale), Indopacetus pacificus
• Northern Bottlenose Whale, Hyperoodon ampullatus
• Southern Bottlenose Whale, Hyperoodon planifrons
• Hector's Beaked Whale, Mesoplodon hectori
• True's Beaked Whale, Mesoplodon mirus
• Gervais' Beaked Whale, Mesoplodon europaeus
• Sowerby's Beaked Whale, Mesoplodon bidens
• Gray's Beaked Whale, Mesoplodon grayi
• Pygmy Beaked Whale, Mesoplodon peruvianus
• Andrews' Beaked Whale, Mesoplodon bowdoini
• Bahamonde's Beaked Whale, Mesoplodon bahamondi
• Hubbs' Beaked Whale, Mesoplodon carlhubbsi
• Ginkgo-toothed Beaked Whale, Mesoplodon ginkgodens
• Stejneger's Beaked Whale, Mesoplodon stejnegeri
• Layard's Beaked Whale, Mesoplodon layardii
• Blainville's Beaked Whale, Mesoplodon densirostris
• Perrin's Beaked Whale, Mesoplodon perrini
• Narwhal, Monodon monoceros
• Beluga, Delphinapterus leucas

Paus yang punah

• Pakicetus
• Ambulocetus
• Basilosaurus
• Squalodon
• Mammalodon colliveri
• Janjucetus hunderi
• Livyatan
• Paus Harrison

Spesies yang belum dikonfirmasi

• Paus Giglioli
• Paus sperma bersirip tinggi
• Bloop

Pranala luar

• BBC news - key species of endangered whales
• The Oceania Project, Caring for Whales, Dolphins and the Oceans