Cognomen 福桑 (Fossan 
, 福桑 
) , in the entire world, is a rare last name. The surname 福桑 is habitual in Northern Europe, particularly Norway, where it is quite a rare surname, Sweden, where it is a rare surname, and Denmark. Measured by absolute frequency, it is the most numerous in Norway, the United States, and Germany. Much less frequently, 福桑 is the forename as well as the last name.