Cognomen Khamhaeng (Khamhaeng 
, กำแหง, คำแหง) , in the world, is a rare family name. The cognomen Khamhaeng is characteristic of Thailand, where it is a rare surname, the United States, where it is an extremely rare surname, and Argentina. Very seldom, Khamhaeng is the forename as well as the last name.
Amy, Dananphop, Laweng, Jantip, Jirayu, Thatri, Unruan, Monchai, Mullika, Samrong, Sirilak, Supawan, Sutiwat, Somsack, Anusorn, Kantida, Khluean, Klaytubtim, Parinya, Panuwat, Phusita, Jaruwan, Palita, Authit, Suthat, Sathit, Jen, Chin, Karn, Poom, Manit, Matee, Sanit, Sanya, Sayan, Surat, Jirayus, Chuad, Pinyo, Lawan, Jarun, Tanet, Ngeun, Vicha, Onnuch, Winai, Wiroj, Montip, Benja, and Tuenjai