Cognomen พจน์พิสุทธิพงษ์ (พจน์พิสุทธิพงษ์ 
) , around the world, is an extremely rare last name. The last name พจน์พิสุทธิพงษ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| พจน์พิสุทธิพงษ์ | Thailand |