Family name Leikauf (Leikauf 
) , worldwide, is a rare cognomen. The last name Leikauf is characteristic of Western Europe, particularly Germany, where it is a rare surname, Switzerland, and Austria. Much less frequently, Leikauf is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Leikauf | Austria, Germany, Hungary, United States, Switzerland |
| philipp ludwig leikauf DE (b. 1744) |
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| eckart leikauf (b. 1954) |
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| andreas leikauf AT (b. 1966) |
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| colin leikauf researcher (ORCID 0000-0003-0928-1913) |
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| george d leikauf researcher |
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| john e. leikauf researcher |
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| davide leikauf German association football player, DE (b. 1990) |
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Mr, Roland, Dieter, George, Johann, Harald, Helmut, Walter, Werner, Ulrich, Andreas, Charles, Carsten, Corinna, Claudia, Klerisa, Patrick, Philipp, Rebecca, Daniela, Jeffrey, Jürgen, Robert, Hermann, Patrik, Cutter, Mary, Anna, Anja, John, Jeff, Annie, Aaron, Corey, Colin, Kathy, Peter, Luise, Jakob, Nancy, Felix, Markus, Sandra, Sabine, Silvia, Seline, Conrad, Krisha, and Wilhelm