Cognomen Deliac (Deliac 
) , in all the world, is a very rare family name. The last name Deliac is characteristic of France, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Very seldom, Deliac is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deliac | United States, United Kingdom, France |