Cognomen วัชรดำรงกิจ (วัชรดำรงกิจ, Watcharadumrongkit 
) , all around the world, is an extremely rare surname. The surname วัชรดำรงกิจ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Watcharadumrongkit | Thailand |