Cognomen Bajner (Bajner 
) , in the world, is a rare surname. The family name Bajner is characteristic of Eastern Europe, particularly Hungary, where it is a rare surname, Slovakia, and Czechia. In absolute terms, this name is the most popular in Hungary, the United States, and Slovakia. Very seldom, Bajner is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bajner | Poland, Hungary, Slovakia, United States, Czechia |