Family name Demiel (Demiel 
) , in all the world, is a very rare surname. The cognomen Demiel is characteristic of France, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and the United States. Much less frequently, Demiel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demiel | Brazil, Philippines, United States, Nigeria, France |