Cognomen Koslowski (Козловский 
, Koslowski 
, Козловски ) , across the world, is a common last name. The family name Koslowski is characteristic of Belarus, where it is quite a common surname, Russia, where it is quite a rare surname, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Козловский | Kazakhstan, Ukraine, Belarus, Kyrgyzstan, Russia |
| Koslowski | Germany, Brazil, Canada, United States, France |
| Козловски | Russia, Belarus |
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leo koslowski German surgeon, DE (b. 1921) |
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manfred koslowski German politician (1942-2008), DE (b. 1942) |
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| otto koslowski Czechoslovak police officer, PL (b. 1900) |
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felix koslowski German volleyball player, DE (b. 1984) |
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| willi koslowski German footballer, DE (b. 1937) |
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jan koslowski DE (b. 1987) |
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| peter koslowski German philosopher, economist and business ethicist, DE (b. 1952) |
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| dennis koslowski Olympic wrestler, US (b. 1959) |
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| duane koslowski American amateur wrestler, US (b. 1959) |
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| stefan koslowski (b. 1959) |
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| alvaro koslowski Brazilian canoeist, BR (b. 1971) |
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| lars koslowski tennis player, DE (b. 1971) |
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| frank koslowski (b. 1962) |
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| heike koslowski German actress, DE (b. 1974) |
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| thorsten koslowski German ice hockey player, DE (b. 1975) |
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