Across the world, Айзер (Eiser 
, Ayzer 
, Aizer 
) is a rare gender-neutral forename. The given name Айзер is characteristic of Peru, where it is a rare male name, Turkey, where it is a rare principally feminine, but very seldom masculine name, and Philippines, where it is a very rare primarily boy's, but very seldom feminine name. Not in comparison with a country's population, it is commonest in Turkey, Peru, and China. More prevalently, Айзер is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Eiser | Australia, Peru, Germany, United States, China |
| Ayzer | Nicaragua, Peru, India, Turkey |
| Aizer | Tanzania, Canada, Philippines, United States, China |
| Айзер | Kazakhstan, Russia, Ukraine, Kyrgyzstan |