Cognomen Gantschnig (Gantschnig 
) , around the globe, is a very rare family name. The surname Gantschnig is habitual in Austria, where it is a rare surname, Germany, where it is an extremely rare surname, and Brazil.
| VARIANT | COUNTRY |
|---|---|
| Gantschnig | Brazil, Austria, Germany |
|
marco gantschnig Austrian association football player (1997-), AT (b. 1997) |
|
| brigitte e gantschnig researcher |
|