Cognomen Ajnina (Ajnina 
, Ажнина 
) , in the entire world, is a rare surname. The family name Ajnina is characteristic of Eastern Europe, particularly Russia, where it is a rare surname, and Ukraine, where it is an extremely rare surname. Very seldom, Ajnina is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ajnina | India, Peru |
| Ажнина | Russia, Ukraine |