Cognomen คำฝั่น (Khamfan 
, คำฝั่น) , in all the world, is a very rare last name. The family name คำฝั่น is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is a very rare surname. Much less frequently, คำฝั่น is the forename as well as the last name.