Surname Thewongsa (วงศา 
, Thewongsa ) , in the entire world, is a rare family name. The surname Thewongsa is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname. Very seldom, Thewongsa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วงศา, Thewongsa | Thailand |