Last name ศิริยุทธแสนยากร (ศิริยุทธแสนยากร 
) , all around the world, is a very rare cognomen. The family name ศิริยุทธแสนยากร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ศิริยุทธแสนยากร | Thailand |