Around the world, Фьелльнер (Фьелльнер 
, Fjellner 
) is an extremely rare unknown gender given name. Predominantly, Фьелльнер is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Фьелльнер | Russia |
| Fjellner | Sweden, Norway, Estonia, United States, Canada |