Family name Aynulin (Айнулин 
, Aynulin 
) , throughout the world, is a rare cognomen. The surname Aynulin is habitual in Eastern Europe, particularly Russia, where it is a rare surname, and Ukraine, where it is an extremely rare surname. Very seldom, Aynulin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Айнулин | Russia |
| Aynulin | Russia, Ukraine |