Last name Koszinowski (Koszinowski 
) , all over the world, is a very rare cognomen. The cognomen Koszinowski is habitual in Germany, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Koszinowski is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koszinowski | Germany, United States |
| konrad koszinowski researcher |
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| ulrich koszinowski researcher |
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| ulrich koszinowski German immunologist, DE |
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| thomas koszinowski |
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| sascha koszinowski |
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