Throughout the world, Ružičková (Ružičková 
) is an extremely rare unknown gender first name. Predominantly, Ružičková is the last name as well as the forename.
Eva, Dagmar, Lýdie, Vanesa, Isabel, Zdenka, Martina, Marcela, Barbora, Daniela, Blanka, Šárka, Michaela, Sonička, Dominika, Gabriela, Terézia, Natália, Veronika, Alexandra, Kateřina, Markéta, Anetka, Andrea, Simona, Anna, Dana, Jana, Hana, Marie, Soňa, Alena, Ajuška, Beata, Katka, Lenka, Lucia, Lucka, Jarka, Edita, Hanka, Ivana, Marika, Monika, Monča, Mária, Kristína, and Pavlínka