Family name ทรงไตรรัตนกุล (ทรงไตรรัตนกุล 
) , throughout the world, is a very rare cognomen. The cognomen ทรงไตรรัตนกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ทรงไตรรัตนกุล | Thailand |