Family name Thassamon (Thassamon 
) , in all the world, is an extremely rare cognomen. Much more frequently, Thassamon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thassamon | United States, Thailand |
Saema, Silawong, Atherton, Choophan, Keawudon, Changkaew, Thongkayan, and Winaikosol