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Cognomen Khanchai (ขรรค์ชัย , Khanchai
, ขันชัย
) , across the world, is quite a rare last name. The cognomen Khanchai is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname, and Malaysia, where it is an extremely rare surname. More frequently, Khanchai is the forename as well as the last name.