Cognomen Kossan (Kossan 
, كوسان) , around the world, is a rare surname. The cognomen Kossan is habitual in Ivory Coast, where it is a rare surname, Tanzania, where it is a very rare surname, and Germany. Measured by absolute frequency, the name is most common in Ivory Coast, the United States, and Germany. Very seldom, Kossan is the forename as well as the last name.