Cognomen ดิลกวณิช (ดิลกวณิช 
) , around the world, is a very rare surname. The family name ดิลกวณิช is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ดิลกวณิช | Thailand |
| วิศาล ดิลกวณิช TH (b. 1970) |
|