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