Last name สุพรรณรัตน์ (สุพรรณรัตน์ 
, Supannarat 
, Supanrat ) , around the globe, is a rare family name. The surname สุพรรณรัตน์ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Likewise, สุพรรณรัตน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุพรรณรัตน์, Supanrat, Suphanrat | Thailand |
| Supannarat | Thailand, United States |
Subanaratana, Subenarat, Subtanaratana, Sumpantarat, Sumpuntarath, Supannarut, Supannrut, Supanrut, Suphanarat, Suphannarat, Suphunnarat, and Supunrat