Surname Аленко (Аленко 
) , across the world, is a very rare cognomen. The family name Аленко is habitual in Kazakhstan, where it is a very rare surname, Russia, and Ukraine, where it is an extremely rare surname. Much less frequently, Аленко is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Аленко | Kazakhstan, Ukraine, Russia |