Family name Kozlowski (Kozlowski 
, Kozłowski 
, Козловски 
) , all around the world, is a common last name. The cognomen Kozlowski is habitual in Poland, where it is quite a common surname, Israel, where it is quite a rare surname, and the United States. Measured by absolute frequency, it most frequently occurs in Poland, the United States, and Germany. Also, Kozlowski is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Kozlowski | Germany, France, Brazil, United States, Poland |
| Kozłowski | Germany, France, United States, United Kingdom, Poland |
| Козловски | Belarus, Russia |
Kozioł, Kozlovski, Kozlovskij, Kozlovsky, Kozłówski, Казлоўскі, Козловский, Козловський, and קוזלובסקי
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theodor kozlowski German geodesist (1824-1905), DE (b. 1824) |
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wladyslaw mieczyslaw kozlowski Polish philosopher (1858-1935), UA (b. 1858) |
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| antoni kozlowski Polish Righteous Among the Nations, PL (b. 1875) |
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| felix von kozlowski (b. 1872) |
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| karol kozlowski American painter, US (b. 1885) |
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| david kozlowski American tennis player, US (b. 1901) |
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linda kozlowski American actress, US (b. 1958) |
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| joseph s. kozlowski American artist (1912-1992), US (b. 1912) |
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michael kozlowski KZ (b. 1961) |
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| stan kozlowski American football player (1924-1972), US (b. 1924) |
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| theodore thomas kozlowski (b. 1917) |
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linda kozlowski business executive |
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ben kozlowski American baseball player, US (b. 1980) |
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| nicole kozlowski badminton player, FR (b. 1931) |
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| dennis kozlowski American businessman, US (b. 1946) |
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