Surname 克森 (克森 
, Kesen 
) , in the world, is quite a common last name. The surname 克森 is habitual in Turkey, where it is quite a common surname, Denmark, where it is a rare surname, and Syria. In absolute terms, this name is the most popular in Turkey, China, and Germany. Much less frequently, 克森 is the forename as well as the last name.