Family name Ollana (Ollana 
) , all over the world, is a rare cognomen. The surname Ollana is habitual in the Democratic Republic of the Congo, where it is a rare surname, Spain, where it is an extremely rare surname, and Venezuela. Measured by absolute frequency, it most frequently occurs in the Democratic Republic of the Congo, Spain, and Philippines. Much less frequently, Ollana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ollana | Democratic Republic of the Congo, Spain, Philippines, Mexico, Venezuela |