Family name โรจน์วณิช (โรจน์วณิช 
) , all around the world, is a very rare last name. The surname โรจน์วณิช is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, โรจน์วณิช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| โรจน์วณิช | Thailand |