Cognomen Kraingsak (Kraingsak 
) , worldwide, is an extremely rare family name. Much more prevalently, Kraingsak is the forename as well as the last name.
Sk, Srikosol, Aonlamul, Chitpakdee, Boonprom, Promwong, Radsamee, Supakarn, Lohittanun, Saengchan, Singjanusong, Chevasopit, Chumchuen, Pueksakorn, Thanompun, Saichompoo, Sirisumran, Saokomut, Saychompoo, Maipluang, Siteaw, Suksai, Suphan, Sumrit, Baujan, Jaidee, Saeteaw, Saokaew, Buanoom, Kongrit, Rimdusit, Tranwan, Onlamun, Wongjan, Hathaikasemsuk, and Phasukanont