Cognomen Libiu (Libiu 
) , all around the world, is a very rare surname. The surname Libiu is characteristic of Romania, where it is a rare surname, Israel, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Romania, the United Kingdom, and Spain. Very seldom, Libiu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Libiu | United Kingdom, Poland, Romania, Spain, Russia |