Cognomen Osban (Osban 
) , in all the world, is a rare family name. The family name Osban is habitual in Honduras, where it is a rare surname, the United States, where it is a very rare surname, and Morocco. Measured by absolute frequency, it is the most numerous in the United States, Morocco, and Mexico. Very seldom, Osban is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Osban | Honduras, United States, Mexico, Morocco, India |