Last name วสิษฐ์รัตนกุล (วสิษฐ์รัตนกุล 
) , in all the world, is a very rare cognomen. The last name วสิษฐ์รัตนกุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| วสิษฐ์รัตนกุล | Thailand |