Last name Jongkraijak (Jongkraijak 
) , all around the world, is a rare cognomen. The cognomen Jongkraijak is characteristic of Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
Sal, Mayuree, Metanon, Sarawut, Sarudha, Surasee, Sunanta, Sukunya, Suparat, Sumalin, Suwitta, Sujinda, Apichet, Chatree, Chavisa, Korakod, Paramee, Pakasit, Pornsak, Porntip, Piyanan, Punravee, Manirat, Wasana, Onrudee, Jidapa, Saji, Serm, Sopa, Pang, Phob, Nisa, Nita, Wisa, Arisa, Kawin, Janjira, Pirom, Rawut, Jinda, Ornny, Saifon, Somsak, Anotai, Panida, Prapha, Rabiab, Ganwipa, Pisit, and Jintana