Cognomen Танген (Tangen 
, Танген 
) , across the world, is quite a common last name. The family name Танген is habitual in Northern Europe, particularly Norway, where it is quite a common surname, Sweden, where it is quite a rare surname, and Denmark, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Norway, the United States, and Indonesia. Much less frequently, Танген is the forename as well as the last name.