Family name พิริยะพงศ์ (Piriyapong 
, พิริยะพงศ์ , Phiriyaphong ) , all around the world, is a rare last name. The surname พิริยะพงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, พิริยะพงศ์ is the forename as well as the last name.