Surname Janthakoon (Janthakoon 
) , in the entire world, is a very rare last name. The cognomen Janthakoon is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
Aumporn, Noophan, Wipawee, Siriphan, Thipwipa, Kittikoon, Sukanlayapron, and Suthasinee