Cognomen Khongkhum (Khongkhum 
) , across the world, is a very rare surname. The cognomen Khongkhum is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Wisit, Damrongsak, Phenprapha, Kotchakorn, Kanjanajit, Kamonthiwat, Chanatkan, Amornthep, Taweesak, Laongwan, Kamontip, Waeomayura, Pongsak, Pennapha, Pannita, Pariwat, Mekkhala, Wichai, Nuphim, Pratya, Arphon, Samnao, Wattanasupon, and Watcharaphong