Family name Gacki (Gacki 
) , in the entire world, is a rare surname. The last name Gacki is characteristic of Poland, where it is quite a rare surname, Czechia, where it is a rare surname, and the United States, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Poland, the United States, and Brazil. Likewise, Gacki is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gacki | Germany, Czechia, United States, Poland, Brazil |
|
józef gacki PL (b. 1805) |
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| stefan kordian gacki Polish artist, PL (b. 1901) |
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| ignacy gacki (b. 1894) |
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| henryk gacki PL (b. 1896) |
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| michał gacki researcher |
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| sebastian gacki Canadian actor, CA (b. 1984) |
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