Family name Khamson (Khamson 
, คำสัน, คำสอน) , all over the world, is a rare cognomen. The surname Khamson is habitual in Thailand, where it is a rare surname, Malaysia, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Much less frequently, Khamson is the forename as well as the last name.