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Last name Kantajai (Kantajai ) , worldwide, is a rare cognomen. The surname Kantajai is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
Seri, Veerasak, Nutchaya, Tanatcha, Krongkit, Krongkan, Chayanin, Supaporn, Jindaporn, Rujirek, Somporn, Sirikan, Arroon, Srikul, Suthat, Luean, Atip, Korakot, and Thongphian