Family name 尼森 (Nissen 
, Niessen 
, 尼森 
) , in the world, is a common last name. The cognomen 尼森 is characteristic of Denmark, where it is a common surname, Germany, where it is quite a common surname, and Netherlands. Not in comparison with a country's population, it is the most numerous in Germany, Denmark, and the United States. Much less frequently, 尼森 is the forename as well as the last name.