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Cognomen บุญยงค์ (บุญยงค์ , Boonyong , Bunyong ) , worldwide, is quite a rare family name. The family name บุญยงค์ is characteristic of Thailand, where it is quite a rare surname, Sweden, where it is a rare surname, and Singapore. Likewise, บุญยงค์ is the forename as well as the last name.