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Last name นวลเพ็ญ (นวลเพ็ญ , Nuanpen , Nuanphen ) , worldwide, is a rare cognomen. The surname นวลเพ็ญ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. More frequently, นวลเพ็ญ is the forename as well as the last name.