Family name รุจิโรจน์ธีรา (รุจิโรจน์ธีรา 
) , throughout the world, is an extremely rare cognomen. The last name รุจิโรจน์ธีรา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| รุจิโรจน์ธีรา | Thailand |