Cognomen Longauer (Longauer 
) , worldwide, is a rare family name. The cognomen Longauer is characteristic of Slovakia, where it is quite a rare surname, Liechtenstein, and Czechia, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Slovakia, Czechia, and Hungary.
| VARIANT | COUNTRY |
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| Longauer | Hungary, Germany, Czechia, United States, Slovakia |
| ján longauer SK (b. 1868) |
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| františek longauer SK (b. 1899) |
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| gustav longauer Slovak writer (1911-1984), SK (b. 1911) |
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| ladislav longauer SK (b. 1919) |
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| ľubomír longauer Czechoslovak painter, SK (b. 1948) |
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| jozef longauer SK (b. 1941) |
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| eduard longauer SK (b. 1949) |
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Mr, Brian, Peter, Radek, Roman, David, Donna, Jakub, Josef, Carla, Joyce, Juraj, Jirka, Tomas, Heidi, Ákos, Ľubo, Martin, Matúš, Julie, Maggie, Anton, Maros, Ms, Ray, Gay, Jan, Jã, Mary, Anna, Paul, Souad, Petr, Ján, Toni, Erik, Emma, Earl, Ivan, Maria, Mario, Greg, and Michal