Cognomen Khounkham (Khounkham 
) , in the entire world, is a rare surname. The last name Khounkham is characteristic of Laos, where it is quite a rare surname, Canada, where it is an extremely rare surname, and Thailand. Measured by absolute frequency, the name is most common in Laos, the United States, and Canada. Likewise, Khounkham is the forename as well as the last name.