Surname Эхнер (Exner 
, Ehner 
, Эхнер 
) , in all the world, is a common cognomen. The surname Эхнер is habitual in Germany, where it is quite a rare surname, Czechia, and Austria. In absolute terms, the name is most common in Germany, the United States, and Czechia. Much less frequently, Эхнер is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Exner | Argentina, Czechia, United States, Germany, Austria |
| Ehner | Brazil, Peru, China, United States, Germany |
| Эхнер | Russia, Kazakhstan |
| Ekhner | Russia |