Family name วัชรรัตน์ (Wacharat 
, วัชรรัตน์ , Vatcharat ) , worldwide, is a very rare cognomen. The cognomen วัชรรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, วัชรรัตน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wacharat | Thailand, Netherlands |
| Vatcharat, Wacharad, วัชรรัตน์ | Thailand |
Vajanaratana, Vannacharat, Wadcharat, Watchararas, Watchararat, and Wutchararut