Surname Sztark (Sztark 
) , in the world, is a rare family name. The cognomen Sztark is habitual in Poland, where it is a rare surname, France, where it is a very rare surname, and Argentina. Likewise, Sztark is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sztark | Germany, United States, Poland, Argentina, France |
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witold sztark Officer of the Polish Army (1894-1992), PL (b. 1894) |
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heliodor sztark PL (b. 1886) |
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grażyna sztark Polish politician, PL (b. 1954) |
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| adam sztark PL (b. 1907) |
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| helena wizło-sztark Polish actress, PL (b. 1934) |
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| françois sztark researcher (ORCID 0000-0001-6912-3410) |
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