Cognomen Kupon (Kupon 
, Coupon 
, Cupón) , worldwide, is a rare last name. The cognomen Kupon is habitual in Hong Kong, where it is a rare surname, France, and Malaysia, where it is a very rare surname. In absolute terms, this name is the most popular in France, Indonesia, and Philippines. Also, Kupon is the forename as well as the last name.