Last name โรจนศิรเกียรติ (โรจนศิรเกียรติ 
) , in all the world, is an extremely rare surname. The family name โรจนศิรเกียรติ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| โรจนศิรเกียรติ | Thailand |