Cognomen 科森 (科森 
, Corson 
, Cosson ) , worldwide, is a common last name. The last name 科森 is characteristic of Guernsey, where it is quite a common surname, France, where it is quite a rare surname, and Mauritius. Measured by absolute frequency, it is the most numerous in France, the United States, and the United Kingdom. Much less frequently, 科森 is the forename as well as the last name.