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Last name Šťastný (Šťastný ) , in all the world, is quite a rare family name. The cognomen Šťastný is characteristic of Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Germany, where it is an extremely rare surname.
Dan, Peter, Radim, Radek, Radko, Rosťa, Roman, Robin, René, Danny, David, Dawid, Leoš, Libor, Lukas, Lubor, Jacob, Jakub, Josef, Jozef, Jirka, Jára, Pavel, Kamil, Karel, Boris, Jan, Tom, Ing, Ivo, Ota, Adam, Kaja, Kuba, Petr, Pepi, Honza, Pepa, Vít, Ivan, Marek, Matty, Milan, Mirek, Mirko, Míra, Míla, Aleš, Dave, and Vojta