Family name ツナ (Tuna 
, ツナ 
) , in all the world, is a common cognomen. The last name ツナ is characteristic of Turkey, where it is quite a common surname, Kosovo, where it is quite a rare surname, and Namibia. Not in comparison with a country's population, the name is most common in Turkey, Ethiopia, and Indonesia. Also, ツナ is the forename as well as the last name.