Cognomen Kongrak (Kongrak 
) , in all the world, is a rare last name. The cognomen Kongrak is habitual in Thailand, where it is a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Kongrak is the forename as well as the last name.
Ken, Cherdsak, Kantapon, Kamonwan, Pornthep, Donthira, Juthaporn, Jirapong, Thanyapa, Teerawat, Teerawut, Tinnakon, Nattikan, Suntipong, Suttiporn, Jeeranunt, Natthawat, Nuttapphun, Suthtisak, Siriluck, Sirinart, Siriphan, Sirin, Arrom, Creed, Jarin, Waron, Saruda, Satorn, Pratum, Boontarika, Viboon, Montika, Sawanya, Suranee, Pakapupon, Jirapat, Tittaya, Wattana, Singarun, Wanida, and Hathaikarn