Prosqualodon is an extinct genus of Early to Middle Miocene cetacean from Argentina, Australia, New Zealand and Venezuela.

Prosqualodon was related to and looked like modern toothed whales.

[1] In the back of the mouth it had triangular teeth similar to those of earlier cetaceans, but in most other respects, it was relatively advanced.

The olfactory apparatus was reduced compared with earlier forms, suggesting that it had already lost much of its sense of smell, presumably relying on sound to catch its prey.

[1] Fossils not assigned to a specific species have also been found in the Calder River Limestone and Jan Juc Formation of Australia.