Worldwide, Těšínský (Těšínský ) is an extremely rare unknown gender forename. Much more prevalently, Těšínský is the last name as well as the forename.
Tesinsky
Jan, Ondřej, Tomáš, Dominik, Viktor, Jiří, Patrik, Martin, Miroslav, Filip, Radek, Pavel, Mára, Mirek, Milan, Marek, Petr, Josef, and Jindřich