Last name Fuengthongdaeng (Fuengthongdaeng 
) , in all the world, is a very rare family name. The surname Fuengthongdaeng is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Fuengthongdaeng | United States, Thailand |