Last name พิณรัตน์ (พิณรัตน์ 
, Pinrat 
, Pinnarat ) , globally, is a rare surname. The surname พิณรัตน์ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. More frequently, พิณรัตน์ is the forename as well as the last name.