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Last name Vorontsov (Воронцов , Vorontsov , וורונצוב ) , in the entire world, is a common cognomen. The family name Vorontsov is habitual in Eastern Europe, particularly Russia, where it is quite a common surname, Belarus, and Ukraine, where it is quite a rare surname.
Mr, Oleg, Oleh, Wset, Yana, Yuri, Yura, Yury, Maria, Maxim, Olga, Meriy, Sasha, Serge, Semen, Slava, Anton, Artem, Artur, Bella, Boris, Mitya, Igor, Ivan, Ilya, Max, Sam, Mark, Maks, Mike, Alex, Anah, Anna, Ayil, Paul, Petr, Dima, Gleb, Tony, Tema, Nick, Erik, Egor, Vlad, Feta, Ilia, Kolia, and Pavel