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Cognomen Klöckner (Klöckner , Клёкнер ) , in the entire world, is quite a rare last name. The family name Klöckner is characteristic of Western Europe, particularly Germany, where it is quite a rare surname.
Kai, Dirk, Gerd, Lara, Lars, Lisa, Luca, Jens, Theo, Timo, Nils, Nina, Noah, Elke, Egon, Hans, Vera, Ingo, Iris, Ilka, Olaf, Maria, Rita, Rene, Rolf, Ralf, Jan, Tom, Tim, Eva, Udo, Ute, Uwe, Marc, Mona, Mike, Mario, Sven, Andy, Anna, Anja, Anke, Arne, Axel, Karl, Kurt, Paul, Rani, Alex, and Marko