Family name Kumkiam (Kumkiam ) , globally, is a rare cognomen. The surname Kumkiam is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
Fon, Muan, Santi, Phurin, Sirawit, Chaiwat, Pakamas, Jiranan, Wadeelada, Chatchai, Kulruedee, Thanavee, Tidawadee, and Supatsorn