Black Marlin

A variety of fish can achieve impressive speeds when necessary, although obtaining accurate and verifiable measurements has been challenging. According to some sources, the black marlin is considered the fastest fish in the world, with an estimated top speed of up to 80 miles per hour.

Another strong contender is the sailfish, which can reach an estimated speed of at least 67 miles per hour. These incredible speeds make both species among the fastest animals in the ocean.

If you want to know more, just click this link:

https://www.britannica.com/list/the-fastest-animals-on-earth