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