Family name Crnek (Crnek 
) , across the world, is a rare cognomen. The surname Crnek is habitual in Croatia, where it is quite a rare surname, Slovenia, where it is a rare surname, and Australia, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Croatia, Slovenia, and Germany.
Ana, Ronald, Tomica, Nikola, Hrvoje, Ivanka, Zlatko, Marijan, Martina, Stjepan, Antonio, Cynthia, Deborah, Daniela, Danijel, Frances, Miroslav, Tomislav, Nicholas, Nikolina, Vladimir, Christine, Robert, Patrik, Sandra, Mateja, Lea, Tim, Ema, Iva, Paul, Dora, Nika, Ivan, Igor, Sanja, Kristijan, Angel, Petra, Dejan, Dario, Damir, Josip, Vinko, Vesna, Vlado, Ivana, Marija, Amber, and Draženka