Cognomen Kowalski (Kowalski 
, Ковальский 
, Ковалски 
) , globally, is a widespread family name. The cognomen Kowalski is habitual in Poland, where it is a common surname, Moldova, where it is quite a common surname, and Germany. In absolute terms, the name is most common in Poland, the United States, and Germany. Likewise, Kowalski is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kowalski | France, United States, Germany, Brazil, Poland |
| Ковальский | Kazakhstan, Moldova, Ukraine, Belarus, Russia |
| Ковалски | Russia, Armenia |
| Covalschi | Argentina, Moldova, United States, Brazil, Romania |
Kovalski, Кавальскі, Ковальський, and קובלסקי
| piotr fabrycy kowalski PL (b. 1552) |
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| andrzej kowalski PL (b. 1628) |
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| georg lorenz von kowalski Prussian lieutenant general, DE (b. 1717) |
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| rachel kowalski (b. 1709) |
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| kajetan kowalski Roman Catholic bishop, PL (b. 1769) |
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| jan ignacy kowalski (b. 1762) |
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henri kowalski French pianist and composer (1841-1916), FR (b. 1841) |
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| józef kowalski LT (b. 1785) |
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stanisław von kowalski PL (b. 1837) |
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| adam anzelm wojciech kowalski (b. 1795) |
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| józef kowalski PL (b. 1801) |
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leon kowalski Polish painter, graphic artasit und photographer, PL (b. 1870) |
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jan maria michał kowalski First Minister Generalis of the Mariavites (1871-1942), PL (b. 1871) |
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lejb kowalski PL (b. 1862) |
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| rudolf kowalski PL (b. 1815) |
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