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Family name Janečka (Janečka ) , all over the world, is a rare cognomen. The last name Janečka is characteristic of Eastern Europe, particularly Czechia, where it is quite a rare surname, and Slovakia.
Jan, Mojmír, Michal, Andrej, Patrik, Daniel, Luděk, Luboš, Martin, Jiří, Lukáš, Tomáš, Ondřej, Zdeněk, Jaroslav, Jaromír, Vojtěch, Eduard, Jiři, Josef, Jakub, Ing, Adam, Kuba, Petr, Vít, Ivan, Igor, Mario, Marek, Karel, Kamil, Pavel, Radim, Radek, Danek, David, Jarek, Stanislav, and Vladimír