Family name Алержон (Алержон 
) , around the world, is an extremely rare last name. The last name Алержон is habitual in Central Asia, particularly Kyrgyzstan, where it is a very rare surname. More frequently, Алержон is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Алержон | Kyrgyzstan, Russia |