Cognomen Iubi (Iubi 
) , globally, is a very rare last name. The cognomen Iubi is characteristic of Romania, where it is a rare surname, Italy, where it is a very rare surname, and Spain, where it is an extremely rare surname. Likewise, Iubi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iubi | United States, Thailand, Romania, Italy, India |