Family name 古森 (古森 
, Goosen 
, Goossen 
) , in all the world, is a common surname. The family name 古森 is habitual in British Virgin Islands, where it is a common surname, South Africa, where it is quite a common surname, and Netherlands (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in South Africa, Netherlands, and the United States. Much less frequently, 古森 is the forename as well as the last name.