Cognomen Khongthap (Khongthap 
) , in the entire world, is a very rare surname. The surname Khongthap is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Khongthap is the forename as well as the last name.
Napa, Araya, Atonong, Khomsit, Jeeraphon, Phatcharin, and Phatcharaphat