Cognomen Алеян (Alejan 
, Алеян 
, Aleian 
) , in all the world, is quite a rare surname. The last name Алеян is characteristic of Philippines, where it is quite a rare surname, Saudi Arabia, where it is a very rare surname, and Ukraine. Not in comparison with a country's population, it is commonest in Philippines, Russia, and Saudi Arabia. Likewise, Алеян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Alejan | Philippines, Colombia, United States, Saudi Arabia, India |
| Алеян | Ukraine, Russia, Armenia |
| Aleian | Philippines, Malaysia, Canada, United States, Brazil |