Last name Jankowski (Jankowski 
, Янковский 
, Янкоўскі ) , all around the world, is a common family name. The family name Jankowski is characteristic of Poland, where it is quite a common surname, Belarus, and Namibia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Poland, the United States, and Germany. Also, Jankowski is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Jankowski | Germany, France, United States, United Kingdom, Poland |
| Янковский | Kazakhstan, Ukraine, Kyrgyzstan, Belarus, Russia |
| Янкоўскі | Belarus |
Janek, Jankowa, and Янковський
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antoni jankowski French officer, PL (b. 1783) |
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placyd jankowski Polish writer, BY (b. 1810) |
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| joachim jankowski PL (b. 1761) |
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narcyz jankowski Polish jurist (1827-1910), PL (b. 1827) |
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| józef emanuel jankowski professor of philosophy at Kraków University, PL (b. 1790) |
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michał jankowski Polish naturalist and exiles in the Russian far-east, PL (b. 1842) |
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| piotr jankowski PL (b. 1785) |
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edmund jankowski Polish horticulturist, PL (b. 1849) |
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| józef jankowski (b. 1796) |
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czesław borys jankowski Polish painter and lithographer, PL (b. 1862) |
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| jan jankowski (b. 1803) |
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józef jankowski Polish writer, poet and journalist, PL (b. 1865) |
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| wiktor jankowski (b. 1808) |
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czesław marian jankowski Polish lawyer, PL (b. 1880) |
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jan stanisław jankowski Polish politician, PL (b. 1882) |
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