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 | Germany, China, Australia, United States, Peru |
| Ayzer | Turkey, India, Peru, Nicaragua |
| Aizer | China, Philippines, United States, Tanzania, Canada |
| Айзер | Kyrgyzstan, Kazakhstan, Russia, Ukraine |