Family name พิศวงศ์ (พิศวงศ์ 
, Phiswong 
) , in the world, is a rare surname. The family name พิศวงศ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, พิศวงศ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พิศวงศ์ | Thailand |
| Phiswong | Thailand, United States |