Surname Sangthavorn (Sangthavorn 
) , globally, is a rare cognomen. The family name Sangthavorn is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sangthavorn | Thailand |
Lalada, Phongsak, Rungkarn, Kanyaporn, and Nualchavee