Throughout the world, Sidorjak (Sidorjak , Сидоряк ) is an extremely rare unknown gender forename. Much more frequently, Sidorjak is the last name as well as the forename.
Sidorják, and Сідоряк
Ivan, Maria, Jakub, Josef, Tomas, Václav, and Lukã Å
, Сидоряк 
) is an extremely rare unknown gender forename. Much more frequently, Sidorjak is the last name as well as the forename.