Throughout the world, Kwaśnik (Kwaśnik 
) is an extremely rare unknown gender first name. Much more frequently, Kwaśnik is the last name as well as the forename.
Ada, Jacek, Jakub, Julia, Filip, Ilona, Iwona, Marcin, Maciej, Monika, Sylwia, Szymon, Alicja, Bartek, Kacper, Kaśka, Konrad, Patryk, Robert, Renata, Daniel, Danuta, Dawid, Datan, Rafał, Piotr, Jan, Ewa, Ola, Anna, Ania, Adam, Kuba, Nika, Olga, Marta, Damian, Marek, Majka, Aneta, Artur, Agata, Beata, Karol, Kamil, Kasia, Kinga, Paweł, Magda, and Janina