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Family name Janeček (Janeček , Janecek , Янечек ) , around the globe, is quite a common cognomen. The last name Janeček is characteristic of Czechia, where it is quite a common surname, Slovakia, and Austria, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Czechia, the United States, and Slovakia.
Ana, Pavel, Peter, Pepik, Radim, Radek, Roman, David, Libor, Lovro, Janek, Jarda, Jakub, Josef, Josip, Jozef, Jenda, Jirka, Tomas, Honza, Vojta, Filip, Palko, Kája, Kamil, Karel, Jan, Tom, Ing, Ivo, Ota, Mira, Alex, Adam, Kuba, Petr, Ondra, Dave, Emil, Vít, Igor, Marek, Milan, Mirek, Mirko, Míra, Aleš, Alois, Ján, and Martin