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