Cognomen Kiarttisak (Kiarttisak 
) , across the world, is an extremely rare last name. Much more frequently, Kiarttisak is the forename as well as the last name.
Jehloh, Theawthad, Thaewthad, Panpoungthong, Yuvabenjapol, Wongchai, Khunretkaew, Khunredkaew, Phongchiranithi, Changjad, Saraphan, Thontha, Jankrai, Poolpurm, Pailing, Chainat, Thonta, Srisalasaeng, and Suwannachote