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Cognomen Sergii (Sergii , Сергии ) , worldwide, is a rare last name. The family name Sergii is habitual in Cyprus, where it is quite a rare surname, Lithuania, where it is a rare surname, and Hungary, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in China, Russia, and Cyprus. More prevalently, Sergii is the forename as well as the last name.
Rak, Pavlenko, Petrenko, Diachenko, Lytvynenko, Vasyliev, Marchenko, Savchenko, Kovalenko, Kovalchuk, Kushchenko, Kyrychenko, Panasenko, Panchenko, Tkachenko, Shapovalov, Shevchenko, Bondarenko, Kolomiitsev, Kravchenko, Pavlovskyi, Polishchuk, Khomenko, Kokariev, Karpenko, Stetsiuk, Moroz, Boiko, Koval, Kulyk, Popov, Melnyk, Volkov, Ivanov, Makarov, Mikhnonok, Gerasymenko, Slakvich, Korolov, Kravets, Klymenko, Rudenko, Golovko, Laichuk, Tkachuk, Oliinyk, Myronenko, Shevchuk, Chernov, and Nesterenko