Cognomen Liubenov (Liubenov 
) , in the entire world, is a very rare family name. The surname Liubenov is characteristic of Bulgaria, where it is a rare surname, Greece, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Liubenov is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Liubenov | United States, Greece, Spain, Bulgaria |