Worldwide, Mullner (Mullner 
) is a very rare male first name. The forename Mullner is habitual in Austria, where it is a rare masculine name, and China, where it is an extremely rare boy's name. Predominantly, Mullner is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mullner | Czechia, Austria, Hungary, United States, Slovakia |