Family name Kaewsomboon (Kaewsomboon 
) , in the world, is a rare surname. The cognomen Kaewsomboon is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
Kata, Chanadda, Khrongsri, Phachata, Janejira, Nattanit, Napaporn, Sakonwan, Waraphon, Chayanisa, Jantrarat, Thatsanai, Narissara, Natchanon, Chureeporn, Sujintorn, Wanvisa, Vorawut, Tanasak, Sawat, Krich, Juree, Montol, Arthit, Kanana, Kasorn, Kesorn, Dusida, Songkro, Attarat, Karaket, Rungrat, Jirasak, Jirunnun, Praphaphan, and Ratchaneeporn