Family name Kriengrojkul (Kriengrojkul 
) , in the entire world, is a rare last name. The cognomen Kriengrojkul is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
Nisa, Peera, Phawan, Orawan, Rattana, Wanphen, Sasakorn, Soraphak, Kulwadee, Panupong, Thuntahree, Sompassorn, Chinnapan, Thuntharee, and Singsathit