Surname วัชรกุล (วัชรกุล 
, Watchakul , Vachakul 
) , in the world, is a rare last name. The surname วัชรกุล is characteristic of Thailand, where it is a rare surname, and India, where it is an extremely rare surname. Likewise, วัชรกุล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Watchakul, วัชรกุล, Vacharakul | Thailand |
| Vachakul | India, Thailand |
Vatchagul, Vatchakul, Vatcharakul, Wachakul, Wacharakul, Wachrakul, Watchaikun, Watchakun, Watcharakul, Watcharakun, and Watechagul