Last name วิรัชพงศ์ (Wirachpong 
, วิรัชพงศ์ , Wiratpong ) , globally, is a very rare family name. The surname วิรัชพงศ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, วิรัชพงศ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วิรัชพงศ์, Viratpong, Wirachpong, Wiratpong | Thailand |
Viratphong, Wiratapong, Wiratchapoing, Wiratchapong, and Wiratphong