Family name คำขันธ์ (Khamkhan 
, คำขันธ์) , around the world, is a very rare cognomen. The family name คำขันธ์ is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, คำขันธ์ is the forename as well as the last name.