Cognomen Qasen (Qasen 
) , around the globe, is a very rare family name. The last name Qasen is habitual in Saudi Arabia, where it is a very rare surname, Kazakhstan, and Venezuela. Not in comparison with a country's population, it is the most numerous in Saudi Arabia, Brazil, and Kazakhstan. Also, Qasen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Qasen | Brazil, Venezuela, Malaysia, Kazakhstan, Saudi Arabia |