Around the globe, Kolcz (Kolcz 
) is an extremely rare unknown gender forename. Much less frequently, Kolcz is the last name as well as the forename.
Jan, Helena, Feliks, Andrzej, Barbara, Ryszard, Gabriel, Grazyna, Jadwiga, Jolanta, Tadeusz, Zygmunt, Boguslaw, Krystyna, Genowefa, Grzegorz, Ireneusz, Wieslawa, Zbigniew, Stanislaw, Agnieszka, Malgorzata, Henryk, Halina, Edward, Teresa, Ewa, Anna, Reka, Jzef, Maria, Marta, Marek, Albin, Beata, Piotr, Mieczyslaw, Jacek, Jzefa, Irena, Zofia, Stefan, Alicja, Antoni, Danuta, Janina, Janusz, Joanna, Jerzy, and Stanislawa