Throughout the world, Jończyk (Jończyk 
) is an extremely rare unknown gender first name. Predominantly, Jończyk is the last name as well as the forename.
Ada, Darek, Dawid, Gosia, Janek, Jacek, Jarek, Jakub, Jerzy, Julia, Jurek, Tomek, Edyta, Hanna, Filip, Iwona, Marcin, Maciej, Monika, Sandra, Sabina, Sylwia, Rafał, Radek, Piotr, Paweł, Aga, Jan, Ela, Ewa, Ola, Anna, Ania, Adam, Kuba, Zuza, Szymon, Marta, Magda, Alina, Aneta, Artur, Agata, Basia, Beata, Karol, Kamil, Kasia, Marek, and Adrian