Family name Iwanowski (Iwanowski 
, Ивановский 
, Ивановски 
) , worldwide, is quite a common surname. The cognomen Iwanowski is characteristic of Eastern Europe, particularly Belarus, where it is quite a common surname, Poland, where it is quite a rare surname, and Russia. Likewise, Iwanowski is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iwanowski | Brazil, Poland, France, United States, Germany |
| Ивановский | Kazakhstan, Russia, Kyrgyzstan, Belarus, Azerbaijan |
| Ивановски | Bulgaria, Russia |
Ivanovski, Ivanovskij, Ivanovsky, Ivanovskyi, Ivanowski, Iwanouski, Iwanowskij, Iwanowskyj, and Івановський
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eustachy iwanowski Polish historian (1813–1903), UA (b. 1813) |
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leonard iwanowski BY (b. 1845) |
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jerzy iwanowski Polish politician, GB (b. 1878) |
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stefan iwanowski Polish officer, PL (b. 1890) |
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błażej iwanowski PL (b. 1889) |
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| leon iwanowski Polish officer (1869-1934), PL (b. 1869) |
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wiktor iwanowski PL (b. 1925) |
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| wincenty iwanowski (b. 1896) |
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| fritz iwanowski (b. 1900) |
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michał iwanowski Polish photographer (born 1977), PL (b. 1977) |
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| kazimierz iwanowski LT (b. 1922) |
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| michael iwanowski German publisher, DE (b. 1948) |
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| mark iwanowski American football player, US (b. 1955) |
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| marcin iwanowski Polish engineer, PL (b. 1971) |
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| przemysław iwanowski Polish physicist |
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