Last name Dernies (Dernies 
) , all over the world, is a very rare family name. The cognomen Dernies is habitual in Western Europe, particularly Belgium, where it is a rare surname, and France, where it is an extremely rare surname. Much less frequently, Dernies is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dernies | France, Belgium, South Africa |
|
michel dernies cyclist, BE (b. 1961) |
|
|
tom dernies cyclist, BE (b. 1990) |
|