Family name Demiz (Demiz 
) , all around the world, is a very rare surname. The surname Demiz is habitual in Argentina, where it is a very rare surname, Mexico, where it is an extremely rare surname, and Turkey. Likewise, Demiz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demiz | Turkey, Germany, Mexico, Argentina, Brazil |