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Surname Kostjuk (Костюк , Kostjuk ) , worldwide, is a common family name. The last name Kostjuk is habitual in Eastern Europe, particularly Ukraine, where it is quite a common surname, Belarus, and Russia, where it is quite a rare surname.
Mr, Daniel, Ljubov, Viktor, Orysia, Markiian, Silvija, Ashley, Aleksei, Rudolph, Zachary, Charlene, Vladimir, Svjetlana, Alexander, Cristen, Artjom, Andrew, Sergej, Ms, Dan, Alex, Anna, Todd, Igor, Karla, Kelly, Diana, Jason, Tyler, Elena, Vadim, Maksim, Sandra, Aleksandr, and Aleksandar