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