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