Last name เพ็ชร์รัตน์ (เพ็ชร์รัตน์ 
) , all around the world, is a rare family name. The family name เพ็ชร์รัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, เพ็ชร์รัตน์ is the forename as well as the last name.