Cognomen Kamchan (Kamchan 
, คำจันทร์) , around the world, is a rare family name. The last name Kamchan is characteristic of Thailand, where it is a rare surname, Malaysia, where it is an extremely rare surname, and Germany. In absolute terms, it is commonest in Thailand, the United States, and India. Likewise, Kamchan is the forename as well as the last name.