Cognomen Mackiewicz (Mackiewicz 
, Мацкевич 
, Мацкевіч ) , in the entire world, is a common surname. The surname Mackiewicz is habitual in Eastern Europe, particularly Belarus, where it is quite a common surname, Poland, and Ukraine, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Eastern Europe, particularly Belarus, Poland, and Russia. Likewise, Mackiewicz is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Mackiewicz | Germany, France, Poland, United Kingdom, United States |
| Мацкевич | Ukraine, Kazakhstan, Belarus, Russia, Poland |
| Мацкевіч | Ukraine, Belarus |
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franciszek mackiewicz UA (b. 1765) |
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| stanisław mackiewicz PL (b. 1796) |
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mieczysław mackiewicz soldier (1880-1954), PL (b. 1880) |
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justyn wiktor mackiewicz Polish officer, PL (b. 1889) |
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józef mackiewicz Polish writer, novelist and political commentator, PL (b. 1902) |
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eugenia mackiewicz Polish nun, PL (b. 1903) |
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witold mackiewicz UA (b. 1913) |
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| antoni mackiewicz LT (b. 1875) |
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| kamil mackiewicz Polish artist, LT (b. 1886) |
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| konstanty mackiewicz Polish painter, PL (b. 1894) |
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| jakub mackiewicz PL (b. 1887) |
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| jan mackiewicz (b. 1903) |
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| felix mackiewicz American baseball player, US (b. 1917) |
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| piotr mackiewicz (b. 1909) |
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| roman mackiewicz PL (b. 1917) |
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