Surname Upasen (Upasen 
) , worldwide, is a rare cognomen. The family name Upasen is habitual in Thailand, where it is a rare surname, and India, where it is an extremely rare surname. Also, Upasen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Upasen | Thailand, India |
| settakorn upasen researcher (ORCID 0000-0002-1291-6070) |
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