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