Cognomen กอบบุญ (กอบบุญ 
, Kobboon 
, Korbboon ) , in all the world, is quite a rare last name. The last name กอบบุญ is habitual in Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, กอบบุญ is the forename as well as the last name.