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Cetaceans mammal list rankings

Although there is much more to mammalwatching than listing species, it is – for many of us – a fun way to track our effort. Mammal listing is nothing more than a friendly competition. But I believe it can motivate mammalwatchers and also lead to a more interactive and lively community. So if you have a list please share it here. Any questions about what people have seen or where? Just click on their list and ask them. And if you are feeling motivated to add to your list then check out this post on where to see (most of) all the world’s cetaceans.

Create an account – or login to your account – then click on My Account from the top menu to add or manage your lists (or simply click here).

Download the list of all cetaceans (Can be used to create a pdf ready for uploading your list)

Whale and dolphin watching rankings

#

Name

No. of species

List

Latest observations

11

Daniel
Benak

25

View

In 2025, I observed 12 species (Pico, Azores), including pygmy sperm whales and a dwarf sperm whale two days later, northern bottlenose whales, Sowerby's beaked whales, and a false killer whale

12

Ashton
Reiser

19

View

River Dolphins, Arnoux's, Blue, Sperm, Sei, Fin Whales, Hourglass Dolphins, Orca 2025

13

Marcelo
Gavensky

17

View

Latest: Harbor Porpoise, Pantropical Spotted Dolphin, Burmeister's Porpoise. Previous highlights: Southern Right Whale Dolphin, Franciscana, Bolivian River Dolphin, Sei Whale, Killer Whale and more

14

B.
Kao

16

View

Dwarf Sperm Whale, Pygmy Sperm Whale, Northern Bottlenose Whale, Sowerby's Beaked Whale, False Killer Whale, North Atlantic Right Whale

15

Ellen
Linton

14

View

Latest observations include Pantropical Spotted Dolphin and Spinner Dolphin in Hawaii and Risso's Dolphin in California. Previous highlights include Northern Right Whale Dolphin off the Farallon Islands and Atlantic Spotted Dolphin on a Cape Hatteras pelagic.

16

Jonas
Livet

14

View

Update 07/2024: 14 whales and dolphins species seen in the wild, total 27 species seen including ones in captive settings

17

Thomas
Maunders

13

View

Sperm, killer and humpback in Iceland 2024

18

Miguel
Martins

13

View

Strait of Gibraltar - Boat based (common dolphin, striped dolphin, common bottlenose dolphin, long-finned pilot whale, fin whale) Land.based (fin whale and sperm whale)

19

Lars Michael
Nielsen

11

View

Latest observations is Harbor Porpoise from my home town Elsinore. My highlight is spontaneusly seeing 20+ Killer Whales and Two Humpabck Whales feeding just below cliffs in southern Iceland and Sei Whale in Hobro, Denmark.

20

William
Lewis

10

View

Latest - Some new species in Hawai'i, December 2023. Highlights include Rough-toothed Dolphin, Northern Right Whale Dolphin, and Dall's Porpoise