Surname 基森 (Keithen 
, 基森 
, Keysen 
) , all over the world, is an extremely rare family name. The last name 基森 is habitual in Honduras, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United Kingdom. In absolute terms, this name is the most popular in the United States, Venezuela, and Honduras. Predominantly, 基森 is the forename as well as the last name.