Family name Flonc (Flonc 
) , in the world, is a very rare last name. The family name Flonc is habitual in Poland, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, Flonc is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Flonc | United States, Poland |