In the world, Lyjak (Lyjak 
) is an extremely rare unknown gender first name. Much less frequently, Lyjak is the last name as well as the forename.
Jan, Tadeusz, Henryka, Zygmunt, Marianna, Miroslaw, Slawomir, Bonifacy, Krystyna, Jadwiga, Leokadia, Waldemar, Wojciech, Zdzislaw, Stanislaw, Katarzyna, Kazimierz, Krzysztof, Malgorzata, Elzbieta, Mieczyslaw, Barbara, Marzena, Anna, Adam, Maria, Beata, Piotr, Roman, Jerzy, Zofia, Andrzej, Marian, Bozena, Danuta, Janina, Tomasz, Edward, Halina, Henryk, Helena, Monika, and Stanislawa