Cognomen Айнахан (Айнахан 
, Ainahan, Ainakhan 
) , throughout the world, is a very rare family name. The family name Айнахан is habitual in Kyrgyzstan, where it is a rare surname, and India, where it is an extremely rare surname. More prevalently, Айнахан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Айнахан | Kyrgyzstan, Kazakhstan |
| Ainakhan | India |