Last name Aibach (Айбаш 
, Aibach 
) , around the world, is a very rare surname. The last name Aibach is habitual in Kyrgyzstan, where it is quite a rare surname, Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Kyrgyzstan, Russia, and Germany. Also, Aibach is the forename as well as the last name.