Family name พึ่งรัตน์ (Pungrat 
, พึ่งรัตน์) , in all the world, is an extremely rare last name. The last name พึ่งรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, พึ่งรัตน์ is the forename as well as the last name.