Family name Kozlovskiy (Козловский 
, Kozlovskiy 
, Козловський ) , in the world, is a common cognomen. The surname Kozlovskiy is habitual in Eastern Europe, particularly Belarus, where it is quite a common surname, Ukraine, and Russia, where it is quite a rare surname.
| VARIANT | COUNTRY |
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| Козловский | Kyrgyzstan, Russia, Kazakhstan, Ukraine, Belarus |
| Kozlovskiy | Poland, United States, Russia, Czechia, Belarus |
| Козловський | Ukraine |
Kozlovskij, Козловскиий, Козловскиы, Козловськиий, and Козловьський
| artur kozlovskiy Ukrainian Righteous Among the Nations, UA (b. 1929) |
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| vladimir kozlovskiy Belarusian Righteous Among the Nations, BY |
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| gennady kozlovskiy Belarusian Righteous Among the Nations, BY |
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| artem kozlovskiy researcher |
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| v i kozlovskiy researcher |
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Mr, Yegor, Yuriy, Maksim, Mihail, Sergey, Stepan, Alexey, Andrei, Andrey, Antony, Kirill, Ruslan, Daniil, Dmitry, Leonid, Nikita, Evgeny, Vasily, Viktor, Mikhail, Arkadiy, Vadik, Vadim, Jerry, Danya, Oli, Yan, Seva, Alex, Dima, Ilya, Ivan, Igor, Oleg, Omar, Dmitriy, Yura, Misha, Sasha, Semen, Slava, Anton, Artem, Boris, Pavel, Roman, Denis, Yury, and Evgeniy