Cognomen ศศิธรเวชกุล (ศศิธรเวชกุล 
, Sasithonvetchakul , Sasithonwetchakul ) , all around the world, is a very rare surname. The cognomen ศศิธรเวชกุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sasithonvetchakul, ศศิธรเวชกุล, Sasitornwetchakun, Sasithonwetchakul | Thailand |
Sasithornvechakul, Sasithornvejakul, Sasithornvejkul, Sasithornwetchakul, and Sasithornwetchakun