Surname 蓬森 (蓬森 
, Poncins 
) , all around the world, is a rare cognomen. The last name 蓬森 is habitual in France, where it is a rare surname, Malaysia, where it is an extremely rare surname, and China. Measured by absolute frequency, it most frequently occurs in France, China, and India. Much less frequently, 蓬森 is the forename as well as the last name.