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