Surname Blassnig (Blassnig 
) , in all the world, is a rare family name. The last name Blassnig is habitual in Austria, where it is quite a rare surname, Switzerland, where it is a rare surname, and Australia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Western Europe, particularly Austria, Switzerland, and Germany.
| VARIANT | COUNTRY |
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| Blassnig | Germany, Austria, Australia, Switzerland, Canada |
| oswald blassnig Austrian teacher, school director and author, AT (b. 1948) |
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clemens blassnig AT (b. 1993) |
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| anja blassnig Austrian association football player, AT |
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Mr, Dennis, Tamara, Mirelle, Andreas, Barbara, Rebecca, Roland, Jessica, Michaela, Berthold, Brigitte, Raphaela, Reinhold, Christian, Isabell, Christoph, Sandra, Marcel, Ms, Alex, Dipl, Vera, Sarah, Simon, Markus, Sunny, Adolf, Luzia, Lukas, Erich, Heinz, Martin, Armin, and Marc-Alexander