Across the world, Ondruš (Ondruš 
, Ондруш 
) is an extremely rare unknown gender given name. Much more prevalently, Ondruš is the last name as well as the forename.
Jan, Samuel, Albert, Andrej, Patrik, Daniel, Dávid, Luděk, Šimon, Marián, Stanley, Adrián, Radovan, Lukáš, Tomáš, Zdeněk, Martinek, Miroslav, Radomír, Jaroslav, Vítězslav, Jindřich, Mário, Michal, Miloš, Matěj, Adam, Petr, Ján, Erik, Marek, Matej, Milan, Karel, Karol, Pavel, Vladimír, Pavol, Roman, David, Jakub, Jozef, Juraj, Honza, Filip, Martin, Marcel, Maroš, Peter, and František