Surname Poonnak (Poonnak 
) , around the globe, is a rare last name. The surname Poonnak is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
Ortip, Wisan, Chompu, Natakorn, Chanyanut, Nattakorn, Wachiraya, Thanaphone, and Pitchayaporn