Worldwide, Mrz (Mrz 
) is a rare unisex forename. The first name Mrz is characteristic of Algeria, where it is a very rare male name, Bangladesh, and Indonesia, where it is a very rare gender-neutral name. Very seldom, Mrz is the last name as well as the forename.
Jan, Andrzej, Czeslaw, Barbara, Ryszard, Dariusz, Grazyna, Jadwiga, Jolanta, Tadeusz, Wieslaw, Marianna, Miroslaw, Krystyna, Elzbieta, Zdzislaw, Zbigniew, Stanislaw, Kazimierz, Krzysztof, Wladyslaw, Malgorzata, Helena, Henryk, Halina, Edward, Ewa, Anna, Adam, Jzef, Maria, Marek, Piotr, Roman, Jacek, Jerzy, Mieczyslaw, Irena, Zofia, Marian, Alicja, Antoni, Danuta, Dorota, Janina, Janusz, Tomasz, Teresa, Wanda, and Stanislawa