Last name 納森 (納森 
, Niclasen 
) , throughout the world, is a rare family name. The cognomen 納森 is characteristic of Northern Europe, particularly Denmark, where it is quite a rare surname, Sweden, where it is a rare surname, and Norway. Not in comparison with a country's population, it is the most numerous in Denmark, Germany, and Australia. Very seldom, 納森 is the forename as well as the last name.