Family name Martwangsang (Martwangsang 
) , in all the world, is a very rare cognomen. The family name Martwangsang is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Martwangsang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Martwangsang | Thailand |