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