Across the world, Mężyk (Mężyk 
) is an extremely rare unknown gender first name. Much more prevalently, Mężyk is the last name as well as the forename.
Ewa, Adrian, Kacper, Robert, Daniel, Dorota, Joanna, Tomasz, Edward, Marysia, Mateusz, Michał, Miłosz, Barbara, Bartosz, Ryszard, Justyna, Natalia, Łukasz, Karolina, Krystian, Grażyna, Albina, Szymon, Sabina, Monika, Anna, Ania, Kuba, Maria, Marta, Marek, Mirek, Aneta, Agata, Beata, Grzegorz, Kasia, Paweł, Piotr, Diana, Jacek, Jakub, Julia, Edyta, Hanna, Oskar, Marcin, Kinga, and Jarosław