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Cognomen ไกรฤกษ์ (ไกรฤกษ์ , Krairerk , Krairoek ) , around the globe, is a rare surname. The family name ไกรฤกษ์ is habitual in Thailand, where it is quite a rare surname, and China, where it is an extremely rare surname. More frequently, ไกรฤกษ์ is the forename as well as the last name.