Surname คำแสงทอง (Kumsangtong 
, คำแสงทอง, Kamsaengthong) , worldwide, is a very rare family name. The family name คำแสงทอง is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, คำแสงทอง is the forename as well as the last name.