Surname ทรงสม (ทรงสม 
) , around the globe, is a very rare family name. The cognomen ทรงสม is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, ทรงสม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ทรงสม | Thailand |