Family name Fehlauer (Fehlauer 
) , worldwide, is a rare last name. The cognomen Fehlauer is habitual in Germany, where it is a rare surname, Canada, where it is a very rare surname, and Brazil. Measured by absolute frequency, it is commonest in Germany, Brazil, and the United States. Very seldom, Fehlauer is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Fehlauer | Canada, Argentina, Brazil, Germany, United States |
| fabian fehlauer DE (b. 1968) |
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| karin hoch fehlauer researcher |
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| klaus-uwe fehlauer Dr. rer. nat. Universität Rostock 1976 |
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| karin hoch fehlauer |
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Mr, Luis, Luiz, Lynn, Jose, John, Jens, Jean, Juan, Theo, Lisa, Tina, Esti, Eric, Erny, Hans, Fred, Ingo, Iria, Ivan, Olga, Nair, Lana, Geni, Gael, Ms, Ana, Ann, Ari, Amy, Ben, Bev, Ken, Lia, Jim, Tim, Ian, Mary, Mike, Anna, Arno, Beni, Karl, Kurt, Rudi, Dirk, Wana, and Yeny