Cognomen Osba (Osba 
) , in the entire world, is a very rare last name. The last name Osba is habitual in Jordan, where it is a rare surname, Mexico, where it is an extremely rare surname, and Nigeria. Also, Osba is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Osba | Mexico, Nigeria, Jordan, United States, India |