Family name Koana (Koana 
) , around the globe, is a very rare last name. The surname Koana is characteristic of Venezuela, where it is an extremely rare surname, Mexico, and India. In absolute terms, it is the most numerous in India, China, and Venezuela. Likewise, Koana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koana | Japan, China, Mexico, South Africa, India |