Cognomen สุวรรณรุจ (สุวรรณรุจ 
, Suvanrut 
) , throughout the world, is a very rare family name. The last name สุวรรณรุจ is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| สุวรรณรุจ | Thailand |
| Suvanrut | United States, Thailand |