Worldwide, Sójka (Sójka 
) is an extremely rare unknown gender forename. Much more prevalently, Sójka is the last name as well as the forename.
Jan, Jakub, Jerzy, Julia, Iwona, Marcin, Madzia, Maciej, Maciek, Monika, Sandra, Sylwia, Szymon, Alicja, Adrian, Bartek, Bogdan, Kamila, Kacper, Patryk, Robert, Renata, Jacek, Gosia, Dawid, Roman, Iza, Ola, Anna, Ania, Adam, Kuba, Zuza, Marta, Marek, Miron, Danuta, Artur, Beata, Karol, Kamil, Kasia, Kinga, Pawel, Paweł, Piotr, Radek, Rafał, Agata, and Damian