Last name เพชรไพรวัลย์ (เพชรไพรวัลย์ 
, Petpraiwan ) , across the world, is a very rare cognomen. The last name เพชรไพรวัลย์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, เพชรไพรวัลย์ is the forename as well as the last name.