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Surname พูนพันธ์ (พูนพันธ์ , Poonphun , Phoonphan ) , in the world, is a very rare cognomen. The last name พูนพันธ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Also, พูนพันธ์ is the forename as well as the last name.