Cognomen เศรษฐีวรรณ (เศรษฐีวรรณ 
, Sethiwan 
) , globally, is a very rare last name. The cognomen เศรษฐีวรรณ is characteristic of Thailand, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and the United States. Much less frequently, เศรษฐีวรรณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เศรษฐีวรรณ | Thailand |
| Sethiwan | United States, Malaysia, Thailand |