Family name Klejner (Klejner 
) , throughout the world, is a very rare surname. The surname Klejner is characteristic of Belarus, where it is a rare surname, Argentina, where it is a very rare surname, and Germany, where it is an extremely rare surname. Also, Klejner is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Klejner | Germany, Belarus, United States, Poland, Argentina |
| izrajil' klejner (b. 1935) |
|