Bluefin tuna is a common name used to refer to several species of tuna of the genus Thunnus.
{|class="sortable wikitable"
! Species !! Common name !! Image !! Range !! Note
|-
| T. maccoyii || Southern bluefin tuna || 100px || found in southern hemisphere waters of all the world's oceans ||
|-
| T. orientalis || Pacific bluefin tuna || 100px || found widely in the northern Pacific Ocean and locally in the south || Formerly known as northern bluefin tuna.
|-
| T. thynnus || Atlantic bluefin tuna || 100px || 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 || 100px || found in tropical Indo-West Pacific waters || Known as the northern bluefin tuna in Australia, as it is found off their northern coast.
|}