Cognomen Garbacz (Garbacz 
) , all around the world, is quite a rare last name. The surname Garbacz is habitual in Poland, where it is quite a rare surname, Hungary, and Ireland, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Poland, the United States, and Hungary. Also, Garbacz is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Garbacz | Germany, France, United States, Hungary, Poland |
| stefania garbacz Polish Righteous Among the Nations, PL (b. 1921) |
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| janusz garbacz PL (b. 1928) |
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filip garbacz Polish actor, PL (b. 1994) |
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jakub garbacz Polish basketball player (1994-), PL (b. 1994) |
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| dionizy garbacz (b. 1940) |
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| lori garbacz All-American college golfer, professional golfer, LPGA Tour member, US (b. 1958) |
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| andrzej garbacz Polish engineer and Warsaw University of Technology researcher, PL |
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| grzegorz garbacz researcher (ORCID 0000-0003-4511-0329) |
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| patrycja garbacz researcher (ORCID 0000-0001-7632-9564) |
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| dave garbacz college basketball player (1973–1973) Canisius |
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| paweł garbacz Polish logician and ontologist, PL |
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| katarzyna garbacz Polish researcher, PL |
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| halina garbacz researcher, PL |
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| piotr garbacz Polish chemist, PL (b. 1984) |
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| mateusz garbacz PL (b. 1995) |
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