Cognomen Khamvanh (Khamvanh 
) , around the world, is an extremely rare family name. The surname Khamvanh is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Khamvanh is the forename as well as the last name.
Naxay, Phonesavanh, Nanthavong, Phaphanthong, Phengsaksy, Somsanith, Malathong, Ouensavanh, Vongvixay, Phomvandid, Chaleunrath, Sayavong, Sayavang, Kanlagna, Seodara, Malysavanh, Phetsomphou, and Souvannaphoxay