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In the world, หทัยวัฒน์ (หทัยวัฒน์ , Hathaiwat , Hattaiwat) is a very rare gender-neutral given name. The given name หทัยวัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare unisex name. Also, หทัยวัฒน์ is the last name as well as the forename.