Cognomen ทรงคุณ (Songkun 
, ทรงคุณ ) , around the world, is a rare surname. The surname ทรงคุณ is habitual in Thailand, where it is a rare surname, and Brazil, where it is an extremely rare surname. More frequently, ทรงคุณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Songkun | China, United States, Brazil, Thailand |
| ทรงคุณ | Thailand |