Cognomen Айупов (Айупов 
, Ayupov 
, Ajupov 
) , throughout the world, is quite a rare surname. The family name Айупов is habitual in Uzbekistan, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Estonia. Not in comparison with a country's population, this name is the most popular in Uzbekistan, Russia, and Kazakhstan.