Cognomen ศิรพัชรางกูร (ศิรพัชรางกูร 
) , in the entire world, is a very rare surname. The last name ศิรพัชรางกูร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ศิรพัชรางกูร | Thailand |