Bluefin tuna is a common name used to refer to several species of tuna of the genus Thunnus.

Species Common name Image Range Note
T. maccoyii Southern bluefin tuna found in southern hemisphere waters of all the world's oceans
T. orientalis Pacific bluefin tuna found widely in the northern Pacific Ocean and locally in the south Formerly known as northern bluefin tuna.
T. thynnus Atlantic bluefin tuna found in both the western and eastern Atlantic Ocean, and also in the Mediterranean Sea Formerly known as northern bluefin tuna.
T. tonggol Longtail tuna found in tropical Indo-West Pacific waters Known as the northern bluefin tuna in Australia, as it is found off their northern coast.