Surname พิยาภรณ์ (Phiyaporn 
, พิยาภรณ์ ) , in the entire world, is an extremely rare family name. The last name พิยาภรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, พิยาภรณ์ is the forename as well as the last name.