Family name โรจน์กุลสุวรรณ (โรจน์กุลสุวรรณ 
) , in the entire world, is an extremely rare surname. The family name โรจน์กุลสุวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| โรจน์กุลสุวรรณ | Thailand |