Cognomen 比松 (Buisson 
, 比松 
) , worldwide, is a common surname. The family name 比松 is characteristic of Reunion, where it is quite a common surname, France, and New Zealand, where it is quite a rare surname. Measured by absolute frequency, it is commonest in France, Canada, and the United States. Much less frequently, 比松 is the forename as well as the last name.