Last name Rój (Rój 
) , all around the world, is a rare surname. The surname Rój is habitual in Eastern Europe, particularly Poland, where it is a rare surname.
| abraham rój (b. 1916) |
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| włodzimierz rój Polish karateka, PL (b. 1960) |
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| justyna rój researcher (ORCID 0000-0003-0570-1386) |
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| edward rój researcher |
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| marcin rój Polish actor, PL (b. 1980) |
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| rafał rój researcher |
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Ola, Seweryn, Klaudia, Dagmara, Justyna, Ewelina, Łukasz, Mikołaj, Krystian, Krystyna, Patrycja, Dominika, Grzegorz, Wiktoria, Weronika, Wojciech, Magdalena, Agnieszka, Katarzyna, Krzysztof, Michał, Mateusz, Mariusz, Wojtek, Anna, Agata, Kamil, Paweł, Piotr, Roman, Dawid, Jacek, Julia, Aleksandra, Ilona, Monika, Sylwia, Adrian, Patryk, Robert, Damian, Janusz, Joanna, Oliwia, Marcin, and Małgorzata