Surname สุภวัน (Suphawan 
, สุภวัน , Supwan ) , in the entire world, is a rare family name. The cognomen สุภวัน is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. More frequently, สุภวัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suphawan | India, Malaysia, United States, Thailand |
| Supwan, สุภวัน | Thailand |