Cognomen เลิศรุจิวณิช (เลิศรุจิวณิช 
) , in the entire world, is a very rare family name. The cognomen เลิศรุจิวณิช is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เลิศรุจิวณิช | Thailand |