Family name Démo (Démo 
) , in all the world, is an extremely rare last name. The last name Démo is characteristic of Western Europe, particularly France, where it is a very rare surname. Likewise, Démo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Démo | France |
Demo, Démonstration, and Дэмо