Cognomen Liberus (Liberus 
) , around the globe, is a very rare last name. The family name Liberus is characteristic of the Dominican Republic, where it is a rare surname, the United States, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Also, Liberus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Liberus | Brazil, United States, Dominican Republic, Poland |