Cognomen Aitkul (Айткул 
, Айткуль , Аиткул ) , in the world, is a rare family name. The cognomen Aitkul is characteristic of Kyrgyzstan, where it is quite a common surname, Kazakhstan, where it is a rare surname, and Russia, where it is an extremely rare surname. More prevalently, Aitkul is the forename as well as the last name.